Indicator Climate

Evolution of annual mean temperature

The combustion of coal, gas and oil, together with forest logging and large-scale livestock farming, are the main causes of the rise in greenhouse gas concentrations in the atmosphere that has been observed for several decades and the associated warming. Higher temperatures, even if only by a few degrees Celsius, have wide-ranging impacts upon natural systems and human societies.

Assessment of the state
impossible to evaluate impossible to evaluate
Assessment of the trend
negative negative
30-years smoothed mean (LOESS) 2023: 2.81 30-years smoothed mean (LOESS) 2022: 2.75 30-years smoothed mean (LOESS) 2021: 2.7 30-years smoothed mean (LOESS) 2020: 2.65 30-years smoothed mean (LOESS) 2019: 2.6 30-years smoothed mean (LOESS) 2018: 2.55 30-years smoothed mean (LOESS) 2017: 2.5 30-years smoothed mean (LOESS) 2016: 2.45 30-years smoothed mean (LOESS) 2015: 2.4 30-years smoothed mean (LOESS) 2014: 2.35 30-years smoothed mean (LOESS) 2013: 2.3 30-years smoothed mean (LOESS) 2012: 2.25 30-years smoothed mean (LOESS) 2011: 2.2 30-years smoothed mean (LOESS) 2010: 2.15 30-years smoothed mean (LOESS) 2009: 2.11 30-years smoothed mean (LOESS) 2008: 2.06 30-years smoothed mean (LOESS) 2007: 2.01 30-years smoothed mean (LOESS) 2006: 1.96 30-years smoothed mean (LOESS) 2005: 1.92 30-years smoothed mean (LOESS) 2004: 1.87 30-years smoothed mean (LOESS) 2003: 1.83 30-years smoothed mean (LOESS) 2002: 1.79 30-years smoothed mean (LOESS) 2001: 1.75 30-years smoothed mean (LOESS) 2000: 1.72 30-years smoothed mean (LOESS) 1999: 1.68 30-years smoothed mean (LOESS) 1998: 1.64 30-years smoothed mean (LOESS) 1997: 1.6 30-years smoothed mean (LOESS) 1996: 1.56 30-years smoothed mean (LOESS) 1995: 1.52 30-years smoothed mean (LOESS) 1994: 1.48 30-years smoothed mean (LOESS) 1993: 1.43 30-years smoothed mean (LOESS) 1992: 1.39 30-years smoothed mean (LOESS) 1991: 1.34 30-years smoothed mean (LOESS) 1990: 1.29 30-years smoothed mean (LOESS) 1989: 1.25 30-years smoothed mean (LOESS) 1988: 1.2 30-years smoothed mean (LOESS) 1987: 1.15 30-years smoothed mean (LOESS) 1986: 1.1 30-years smoothed mean (LOESS) 1985: 1.06 30-years smoothed mean (LOESS) 1984: 1.01 30-years smoothed mean (LOESS) 1983: 0.96 30-years smoothed mean (LOESS) 1982: 0.92 30-years smoothed mean (LOESS) 1981: 0.87 30-years smoothed mean (LOESS) 1980: 0.83 30-years smoothed mean (LOESS) 1979: 0.79 30-years smoothed mean (LOESS) 1978: 0.75 30-years smoothed mean (LOESS) 1977: 0.71 30-years smoothed mean (LOESS) 1976: 0.68 30-years smoothed mean (LOESS) 1975: 0.66 30-years smoothed mean (LOESS) 1974: 0.63 30-years smoothed mean (LOESS) 1973: 0.61 30-years smoothed mean (LOESS) 1972: 0.6 30-years smoothed mean (LOESS) 1971: 0.58 30-years smoothed mean (LOESS) 1970: 0.57 30-years smoothed mean (LOESS) 1969: 0.57 30-years smoothed mean (LOESS) 1968: 0.56 30-years smoothed mean (LOESS) 1967: 0.56 30-years smoothed mean (LOESS) 1966: 0.56 30-years smoothed mean (LOESS) 1965: 0.57 30-years smoothed mean (LOESS) 1964: 0.58 30-years smoothed mean (LOESS) 1963: 0.59 30-years smoothed mean (LOESS) 1962: 0.61 30-years smoothed mean (LOESS) 1961: 0.62 30-years smoothed mean (LOESS) 1960: 0.64 30-years smoothed mean (LOESS) 1959: 0.65 30-years smoothed mean (LOESS) 1958: 0.67 30-years smoothed mean (LOESS) 1957: 0.68 30-years smoothed mean (LOESS) 1956: 0.69 30-years smoothed mean (LOESS) 1955: 0.7 30-years smoothed mean (LOESS) 1954: 0.7 30-years smoothed mean (LOESS) 1953: 0.7 30-years smoothed mean (LOESS) 1952: 0.7 30-years smoothed mean (LOESS) 1951: 0.69 30-years smoothed mean (LOESS) 1950: 0.69 30-years smoothed mean (LOESS) 1949: 0.68 30-years smoothed mean (LOESS) 1948: 0.67 30-years smoothed mean (LOESS) 1947: 0.67 30-years smoothed mean (LOESS) 1946: 0.66 30-years smoothed mean (LOESS) 1945: 0.65 30-years smoothed mean (LOESS) 1944: 0.65 30-years smoothed mean (LOESS) 1943: 0.64 30-years smoothed mean (LOESS) 1942: 0.63 30-years smoothed mean (LOESS) 1941: 0.62 30-years smoothed mean (LOESS) 1940: 0.61 30-years smoothed mean (LOESS) 1939: 0.6 30-years smoothed mean (LOESS) 1938: 0.59 30-years smoothed mean (LOESS) 1937: 0.57 30-years smoothed mean (LOESS) 1936: 0.56 30-years smoothed mean (LOESS) 1935: 0.54 30-years smoothed mean (LOESS) 1934: 0.51 30-years smoothed mean (LOESS) 1933: 0.49 30-years smoothed mean (LOESS) 1932: 0.47 30-years smoothed mean (LOESS) 1931: 0.45 30-years smoothed mean (LOESS) 1930: 0.44 30-years smoothed mean (LOESS) 1929: 0.42 30-years smoothed mean (LOESS) 1928: 0.41 30-years smoothed mean (LOESS) 1927: 0.4 30-years smoothed mean (LOESS) 1926: 0.39 30-years smoothed mean (LOESS) 1925: 0.38 30-years smoothed mean (LOESS) 1924: 0.37 30-years smoothed mean (LOESS) 1923: 0.36 30-years smoothed mean (LOESS) 1922: 0.34 30-years smoothed mean (LOESS) 1921: 0.32 30-years smoothed mean (LOESS) 1920: 0.31 30-years smoothed mean (LOESS) 1919: 0.29 30-years smoothed mean (LOESS) 1918: 0.27 30-years smoothed mean (LOESS) 1917: 0.25 30-years smoothed mean (LOESS) 1916: 0.24 30-years smoothed mean (LOESS) 1915: 0.22 30-years smoothed mean (LOESS) 1914: 0.21 30-years smoothed mean (LOESS) 1913: 0.19 30-years smoothed mean (LOESS) 1912: 0.18 30-years smoothed mean (LOESS) 1911: 0.17 30-years smoothed mean (LOESS) 1910: 0.16 30-years smoothed mean (LOESS) 1909: 0.15 30-years smoothed mean (LOESS) 1908: 0.14 30-years smoothed mean (LOESS) 1907: 0.13 30-years smoothed mean (LOESS) 1906: 0.12 30-years smoothed mean (LOESS) 1905: 0.1 30-years smoothed mean (LOESS) 1904: 0.09 30-years smoothed mean (LOESS) 1903: 0.07 30-years smoothed mean (LOESS) 1902: 0.06 30-years smoothed mean (LOESS) 1901: 0.04 30-years smoothed mean (LOESS) 1900: 0.03 30-years smoothed mean (LOESS) 1899: 0.02 30-years smoothed mean (LOESS) 1898: 0 30-years smoothed mean (LOESS) 1897: 0 30-years smoothed mean (LOESS) 1896: -0.01 30-years smoothed mean (LOESS) 1895: -0.02 30-years smoothed mean (LOESS) 1894: -0.03 30-years smoothed mean (LOESS) 1893: -0.03 30-years smoothed mean (LOESS) 1892: -0.04 30-years smoothed mean (LOESS) 1891: -0.04 30-years smoothed mean (LOESS) 1890: -0.04 30-years smoothed mean (LOESS) 1889: -0.05 30-years smoothed mean (LOESS) 1888: -0.06 30-years smoothed mean (LOESS) 1887: -0.06 30-years smoothed mean (LOESS) 1886: -0.07 30-years smoothed mean (LOESS) 1885: -0.07 30-years smoothed mean (LOESS) 1884: -0.07 30-years smoothed mean (LOESS) 1883: -0.06 30-years smoothed mean (LOESS) 1882: -0.04 30-years smoothed mean (LOESS) 1881: -0.03 30-years smoothed mean (LOESS) 1880: -0.02 30-years smoothed mean (LOESS) 1879: 0 30-years smoothed mean (LOESS) 1878: 0.01 30-years smoothed mean (LOESS) 1877: 0.02 30-years smoothed mean (LOESS) 1876: 0.04 30-years smoothed mean (LOESS) 1875: 0.05 30-years smoothed mean (LOESS) 1874: 0.07 30-years smoothed mean (LOESS) 1873: 0.08 30-years smoothed mean (LOESS) 1872: 0.1 30-years smoothed mean (LOESS) 1871: 0.11 30-years smoothed mean (LOESS) 1870: 0.13 30-years smoothed mean (LOESS) 1869: 0.14 30-years smoothed mean (LOESS) 1868: 0.16 30-years smoothed mean (LOESS) 1867: 0.18 30-years smoothed mean (LOESS) 1866: 0.19 30-years smoothed mean (LOESS) 1865: 0.21 30-years smoothed mean (LOESS) 1864: 0.23 Years above the average of 1871-1900 2023: 3.37 Years above the average of 1871-1900 2022: 3.54 Years above the average of 1871-1900 2021: 1.77 Years above the average of 1871-1900 2020: 2.99 Years above the average of 1871-1900 2019: 2.63 Years above the average of 1871-1900 2018: 3.02 Years above the average of 1871-1900 2017: 2.33 Years above the average of 1871-1900 2016: 2.21 Years above the average of 1871-1900 2015: 2.81 Years above the average of 1871-1900 2014: 2.65 Years above the average of 1871-1900 2013: 1.41 Years above the average of 1871-1900 2012: 1.95 Years above the average of 1871-1900 2011: 2.75 Years above the average of 1871-1900 2010: 0.82 Years above the average of 1871-1900 2009: 1.94 Years above the average of 1871-1900 2008: 1.75 Years above the average of 1871-1900 2007: 2.2 Years above the average of 1871-1900 2006: 2.09 Years above the average of 1871-1900 2005: 1.13 Years above the average of 1871-1900 2004: 1.54 Years above the average of 1871-1900 2003: 2.38 Years above the average of 1871-1900 2002: 2.21 Years above the average of 1871-1900 2001: 1.59 Years above the average of 1871-1900 2000: 2.13 Years above the average of 1871-1900 1999: 1.51 Years above the average of 1871-1900 1998: 1.6 Years above the average of 1871-1900 1997: 1.99 Years above the average of 1871-1900 1996: 0.76 Years above the average of 1871-1900 1995: 1.33 Years above the average of 1871-1900 1994: 2.52 Years above the average of 1871-1900 1993: 1.32 Years above the average of 1871-1900 1992: 1.86 Years above the average of 1871-1900 1991: 1.12 Years above the average of 1871-1900 1990: 1.84 Years above the average of 1871-1900 1989: 1.99 Years above the average of 1871-1900 1988: 1.49 Years above the average of 1871-1900 1987: 0.83 Years above the average of 1871-1900 1986: 0.75 Years above the average of 1871-1900 1985: 0.5 Years above the average of 1871-1900 1984: 0.26 Years above the average of 1871-1900 1983: 1.48 Years above the average of 1871-1900 1982: 1.36 Years above the average of 1871-1900 1981: 0.62 Years below the average of 1871-1900 1980: -0.02 Years above the average of 1871-1900 1979: 0.57 Years above the average of 1871-1900 1978: 0.29 Years above the average of 1871-1900 1977: 0.87 Years above the average of 1871-1900 1976: 0.76 Years above the average of 1871-1900 1975: 0.89 Years above the average of 1871-1900 1974: 0.63 Years above the average of 1871-1900 1973: 0.39 Years above the average of 1871-1900 1972: 0.38 Years above the average of 1871-1900 1971: 0.76 Years above the average of 1871-1900 1970: 0.21 Years above the average of 1871-1900 1969: 0.21 Years above the average of 1871-1900 1968: 0.48 Years above the average of 1871-1900 1967: 0.84 Years above the average of 1871-1900 1966: 0.78 Years below the average of 1871-1900 1965: -0.18 Years above the average of 1871-1900 1964: 1.07 Years below the average of 1871-1900 1963: -0.15 Years below the average of 1871-1900 1962: -0.16 Years above the average of 1871-1900 1961: 1.67 Years above the average of 1871-1900 1960: 0.55 Years above the average of 1871-1900 1959: 1.42 Years above the average of 1871-1900 1958: 0.79 Years above the average of 1871-1900 1957: 0.93 Years below the average of 1871-1900 1956: -0.77 Years above the average of 1871-1900 1955: 0.33 Years above the average of 1871-1900 1954: 0.17 Years above the average of 1871-1900 1953: 1.04 Years above the average of 1871-1900 1952: 0.56 Years above the average of 1871-1900 1951: 0.85 Years above the average of 1871-1900 1950: 1.16 Years above the average of 1871-1900 1949: 1.56 Years above the average of 1871-1900 1948: 1.41 Years above the average of 1871-1900 1947: 1.75 Years above the average of 1871-1900 1946: 0.88 Years above the average of 1871-1900 1945: 1.04 Years above the average of 1871-1900 1944: 0.08 Years above the average of 1871-1900 1943: 1.4 Years above the average of 1871-1900 1942: 0.44 Years below the average of 1871-1900 1941: -0.31 Years below the average of 1871-1900 1940: -0.41 Years above the average of 1871-1900 1939: 0.17 Years above the average of 1871-1900 1938: 0.54 Years above the average of 1871-1900 1937: 0.7 Years above the average of 1871-1900 1936: 0.53 Years above the average of 1871-1900 1935: 0.16 Years above the average of 1871-1900 1934: 1.26 Years below the average of 1871-1900 1933: -0.03 Years above the average of 1871-1900 1932: 0.41 Years below the average of 1871-1900 1931: -0.16 Years above the average of 1871-1900 1930: 1.04 Years above the average of 1871-1900 1929: 0.25 Years above the average of 1871-1900 1928: 0.99 Years above the average of 1871-1900 1927: 0.65 Years above the average of 1871-1900 1926: 0.87 Years above the average of 1871-1900 1925: 0.17 Years above the average of 1871-1900 1924: 0.2 Years above the average of 1871-1900 1923: 0.54 Years below the average of 1871-1900 1922: -0.17 Years above the average of 1871-1900 1921: 1.37 Years above the average of 1871-1900 1920: 1.2 Years below the average of 1871-1900 1919: -0.51 Years above the average of 1871-1900 1918: 0.46 Years below the average of 1871-1900 1917: -0.57 Years above the average of 1871-1900 1916: 0.26 Years below the average of 1871-1900 1915: -0.1 Years above the average of 1871-1900 1914: 0.08 Years above the average of 1871-1900 1913: 0.45 Years below the average of 1871-1900 1912: -0.1 Years above the average of 1871-1900 1911: 0.98 Years below the average of 1871-1900 1910: -0.19 Years below the average of 1871-1900 1909: -0.66 Years below the average of 1871-1900 1908: -0.09 Years above the average of 1871-1900 1907: 0.05 Years above the average of 1871-1900 1906: 0.03 Years below the average of 1871-1900 1905: -0.29 Years above the average of 1871-1900 1904: 0.72 Years above the average of 1871-1900 1903: 0.04 Years below the average of 1871-1900 1902: -0.03 Years below the average of 1871-1900 1901: -0.46 Years above the average of 1871-1900 1900: 0.64 Years above the average of 1871-1900 1899: 0.75 Years above the average of 1871-1900 1898: 0.87 Years above the average of 1871-1900 1897: 0.59 Years below the average of 1871-1900 1896: -0.55 Years below the average of 1871-1900 1895: -0.19 Years above the average of 1871-1900 1894: 0.16 Years above the average of 1871-1900 1893: 0.4 Years above the average of 1871-1900 1892: 0.07 Years below the average of 1871-1900 1891: -0.62 Years below the average of 1871-1900 1890: -0.72 Years below the average of 1871-1900 1889: -0.84 Years below the average of 1871-1900 1888: -0.62 Years below the average of 1871-1900 1887: -0.9 Years above the average of 1871-1900 1886: 0.1 Years above the average of 1871-1900 1885: 0.23 Years above the average of 1871-1900 1884: 0.34 Years below the average of 1871-1900 1883: -0.4 Years above the average of 1871-1900 1882: 0.21 Years above the average of 1871-1900 1881: 0.13 Years above the average of 1871-1900 1880: 0.64 Years below the average of 1871-1900 1879: -1.02 Years below the average of 1871-1900 1878: -0.33 Years above the average of 1871-1900 1877: 0.2 Years above the average of 1871-1900 1876: 0.37 Years below the average of 1871-1900 1875: -0.01 Years below the average of 1871-1900 1874: -0.07 Years above the average of 1871-1900 1873: 0.54 Years above the average of 1871-1900 1872: 0.81 Years below the average of 1871-1900 1871: -0.79 Years below the average of 1871-1900 1870: -0.5 Years above the average of 1871-1900 1869: 0.17 Years above the average of 1871-1900 1868: 0.94 Years above the average of 1871-1900 1867: 0.19 Years above the average of 1871-1900 1866: 0.71 Years above the average of 1871-1900 1865: 0.54 Years below the average of 1871-1900 1864: -0.71
Variations from the average of 1871–1900, in °C

Data for the graph: Excel
Source: MeteoSwiss
Annual mean temperature 2023: 7.23 Annual mean temperature 2022: 7.41 Annual mean temperature 2021: 5.63 Annual mean temperature 2020: 6.86 Annual mean temperature 2019: 6.49 Annual mean temperature 2018: 6.88 Annual mean temperature 2017: 6.19 Annual mean temperature 2016: 6.07 Annual mean temperature 2015: 6.67 Annual mean temperature 2014: 6.51 Annual mean temperature 2013: 5.27 Annual mean temperature 2012: 5.82 Annual mean temperature 2011: 6.62 Annual mean temperature 2010: 4.68 Annual mean temperature 2009: 5.8 Annual mean temperature 2008: 5.61 Annual mean temperature 2007: 6.06 Annual mean temperature 2006: 5.95 Annual mean temperature 2005: 4.99 Annual mean temperature 2004: 5.4 Annual mean temperature 2003: 6.24 Annual mean temperature 2002: 6.08 Annual mean temperature 2001: 5.46 Annual mean temperature 2000: 5.99 Annual mean temperature 1999: 5.37 Annual mean temperature 1998: 5.46 Annual mean temperature 1997: 5.85 Annual mean temperature 1996: 4.63 Annual mean temperature 1995: 5.2 Annual mean temperature 1994: 6.38 Annual mean temperature 1993: 5.18 Annual mean temperature 1992: 5.73 Annual mean temperature 1991: 4.98 Annual mean temperature 1990: 5.7 Annual mean temperature 1989: 5.85 Annual mean temperature 1988: 5.35 Annual mean temperature 1987: 4.69 Annual mean temperature 1986: 4.61 Annual mean temperature 1985: 4.36 Annual mean temperature 1984: 4.12 Annual mean temperature 1983: 5.34 Annual mean temperature 1982: 5.22 Annual mean temperature 1981: 4.48 Annual mean temperature 1980: 3.85 Annual mean temperature 1979: 4.43 Annual mean temperature 1978: 4.15 Annual mean temperature 1977: 4.74 Annual mean temperature 1976: 4.62 Annual mean temperature 1975: 4.75 Annual mean temperature 1974: 4.49 Annual mean temperature 1973: 4.25 Annual mean temperature 1972: 4.24 Annual mean temperature 1971: 4.62 Annual mean temperature 1970: 4.07 Annual mean temperature 1969: 4.08 Annual mean temperature 1968: 4.34 Annual mean temperature 1967: 4.71 Annual mean temperature 1966: 4.64 Annual mean temperature 1965: 3.68 Annual mean temperature 1964: 4.93 Annual mean temperature 1963: 3.71 Annual mean temperature 1962: 3.7 Annual mean temperature 1961: 5.53 Annual mean temperature 1960: 4.42 Annual mean temperature 1959: 5.28 Annual mean temperature 1958: 4.66 Annual mean temperature 1957: 4.79 Annual mean temperature 1956: 3.1 Annual mean temperature 1955: 4.19 Annual mean temperature 1954: 4.03 Annual mean temperature 1953: 4.9 Annual mean temperature 1952: 4.42 Annual mean temperature 1951: 4.72 Annual mean temperature 1950: 5.03 Annual mean temperature 1949: 5.43 Annual mean temperature 1948: 5.28 Annual mean temperature 1947: 5.61 Annual mean temperature 1946: 4.74 Annual mean temperature 1945: 4.91 Annual mean temperature 1944: 3.95 Annual mean temperature 1943: 5.26 Annual mean temperature 1942: 4.3 Annual mean temperature 1941: 3.55 Annual mean temperature 1940: 3.45 Annual mean temperature 1939: 4.03 Annual mean temperature 1938: 4.41 Annual mean temperature 1937: 4.57 Annual mean temperature 1936: 4.39 Annual mean temperature 1935: 4.02 Annual mean temperature 1934: 5.13 Annual mean temperature 1933: 3.83 Annual mean temperature 1932: 4.27 Annual mean temperature 1931: 3.7 Annual mean temperature 1930: 4.91 Annual mean temperature 1929: 4.11 Annual mean temperature 1928: 4.85 Annual mean temperature 1927: 4.51 Annual mean temperature 1926: 4.74 Annual mean temperature 1925: 4.03 Annual mean temperature 1924: 4.06 Annual mean temperature 1923: 4.41 Annual mean temperature 1922: 3.69 Annual mean temperature 1921: 5.23 Annual mean temperature 1920: 5.06 Annual mean temperature 1919: 3.36 Annual mean temperature 1918: 4.33 Annual mean temperature 1917: 3.3 Annual mean temperature 1916: 4.13 Annual mean temperature 1915: 3.76 Annual mean temperature 1914: 3.94 Annual mean temperature 1913: 4.31 Annual mean temperature 1912: 3.76 Annual mean temperature 1911: 4.84 Annual mean temperature 1910: 3.68 Annual mean temperature 1909: 3.2 Annual mean temperature 1908: 3.77 Annual mean temperature 1907: 3.91 Annual mean temperature 1906: 3.89 Annual mean temperature 1905: 3.57 Annual mean temperature 1904: 4.58 Annual mean temperature 1903: 3.9 Annual mean temperature 1902: 3.83 Annual mean temperature 1901: 3.4 Annual mean temperature 1900: 4.5 Annual mean temperature 1899: 4.61 Annual mean temperature 1898: 4.74 Annual mean temperature 1897: 4.46 Annual mean temperature 1896: 3.31 Annual mean temperature 1895: 3.68 Annual mean temperature 1894: 4.02 Annual mean temperature 1893: 4.27 Annual mean temperature 1892: 3.94 Annual mean temperature 1891: 3.24 Annual mean temperature 1890: 3.15 Annual mean temperature 1889: 3.02 Annual mean temperature 1888: 3.24 Annual mean temperature 1887: 2.96 Annual mean temperature 1886: 3.96 Annual mean temperature 1885: 4.1 Annual mean temperature 1884: 4.2 Annual mean temperature 1883: 3.46 Annual mean temperature 1882: 4.07 Annual mean temperature 1881: 3.99 Annual mean temperature 1880: 4.5 Annual mean temperature 1879: 2.85 Annual mean temperature 1878: 3.53 Annual mean temperature 1877: 4.06 Annual mean temperature 1876: 4.23 Annual mean temperature 1875: 3.85 Annual mean temperature 1874: 3.79 Annual mean temperature 1873: 4.4 Annual mean temperature 1872: 4.67 Annual mean temperature 1871: 3.08 Annual mean temperature 1870: 3.36 Annual mean temperature 1869: 4.03 Annual mean temperature 1868: 4.8 Annual mean temperature 1867: 4.06 Annual mean temperature 1866: 4.58 Annual mean temperature 1865: 4.41 Annual mean temperature 1864: 3.16
Annual mean temperature in °C

Data for the graph: Excel
Source: MeteoSwiss
Comment

The annual mean temperature in Switzerland is subject to relatively large natural fluctuations. Since around 1950, however, the observed fluctuations can no longer be explained by natural factors alone. The rising concentration of greenhouse gases in the atmosphere caused by humans has contributed substantially to the observed warming. Temperatures in Switzerland have increased by 2.8°C compared with the pre-industrial average (1871-1900). The years 2022 and 2023 were the warmest since measurements began in 1864, continuing the strong warming trend of recent years.

The variations of the annual mean temperature from the pre-industrial average (1871-1900) cannot be rated positively or negatively as such. However, the trend observed over the past decades is worrying. The changes to the climatic setting are happening relatively rapidly; as a result, ecosystems and endangered sectors of the economy (such as winter tourism) are unable or have difficulty to adjust to the new conditions.

International comparison

The Swiss temperature measurement series have been produced in accordance with internationally standardised methods. Globally, annual mean temperature variation is currently 1.3°C above the pre-industrial average (1871-1900), but in Switzerland it is 2.8°C above. Global warming is more pronounced over the continents than over the oceans.

A global rise by 2 °C above the pre-industrialisation level is considered to be a critical threshold. If this threshold is crossed, severe ecological, social and economic damage is likely. In view of the longer-term development trends in greenhouse gas emissions and the great inertia of the climate system, it is becoming increasingly probable that global temperatures will indeed cross the 2 °C threshold.

Method

With its ground-level observation system (SwissMetNet), the Federal Office of Meteorology and Climatology (MeteoSwiss) records a range of meteorological and climatological parameters across the entire territory of the country. The annual mean temperature for Switzerland describes the average temperature measured across the entire territory and at the different altitudes in Switzerland. High-resolution data are available from 1981. In order to extend the time series back to 1864 (beginning of records), the various measurement stations for the specified years are weighted on the basis of their representativity.

 
Last updated on: 02.12.2024

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