Summer temperature anomalies in Saint Helena
Saint Helena: Summer temperature anomalies was -0.0099 °C in 2026. ◆ Volatile
Summer temperature anomalies in Saint Helena, 1940–2026
Source: Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data. Measured in °C.
Analysis
The most recent figure for summer temperature anomalies in Saint Helena is -0.0099 °C, measured in 2026.
The figure is up 92.0% on the previous year and down 102.1% over ten years.
Over the whole period, summer temperature anomalies in Saint Helena peaked at 0.7711 °C in 2021 and was at its lowest, -1.12 °C, in 1946.
That places Saint Helena 170th out of 193 countries with data for 2026, putting it in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Summer temperature anomalies in Saint Helena, year by year
| Year | °C | Change |
|---|---|---|
| 1940 | -0.5779 °C | — |
| 1941 | -0.2369 °C | -59.0% |
| 1942 | -0.3981 °C | +68.0% |
| 1943 | -0.9386 °C | +135.8% |
| 1944 | 0.5529 °C | -158.9% |
| 1945 | -0.5055 °C | -191.4% |
| 1946 | -1.12 °C | +122.5% |
| 1947 | -0.3222 °C | -71.4% |
| 1948 | -0.2913 °C | -9.6% |
| 1949 | 0.2547 °C | -187.4% |
| 1950 | -0.2842 °C | -211.6% |
| 1951 | -0.2059 °C | -27.5% |
| 1952 | -0.2077 °C | +0.8% |
| 1953 | -0.7907 °C | +280.8% |
| 1954 | -0.4616 °C | -41.6% |
| 1955 | -0.7933 °C | +71.8% |
| 1956 | -1.04 °C | +31.4% |
| 1957 | -0.385 °C | -63.1% |
| 1958 | -0.8516 °C | +121.2% |
| 1959 | -0.5449 °C | -36.0% |
| 1960 | -0.388 °C | -28.8% |
| 1961 | -0.2395 °C | -38.3% |
| 1962 | -0.3493 °C | +45.9% |
| 1963 | -0.2023 °C | -42.1% |
| 1964 | -0.3724 °C | +84.1% |
| 1965 | -0.2692 °C | -27.7% |
| 1966 | 0.4755 °C | -276.7% |
| 1967 | -0.6907 °C | -245.3% |
| 1968 | -0.5999 °C | -13.2% |
| 1969 | -0.3615 °C | -39.7% |
| 1970 | -0.4583 °C | +26.8% |
| 1971 | -0.4231 °C | -7.7% |
| 1972 | 0.0925 °C | -121.9% |
| 1973 | 0.3862 °C | +317.4% |
| 1974 | -0.1152 °C | -129.8% |
| 1975 | -0.2004 °C | +73.9% |
| 1976 | -0.3988 °C | +99.0% |
| 1977 | -0.4081 °C | +2.3% |
| 1978 | -0.2944 °C | -27.8% |
| 1979 | 0.0647 °C | -122.0% |
| 1980 | -0.0412 °C | -163.7% |
| 1981 | -0.3919 °C | +850.9% |
| 1982 | -0.53 °C | +35.3% |
| 1983 | -0.1835 °C | -65.4% |
| 1984 | -0.0032 °C | -98.3% |
| 1985 | -0.213 °C | +6650.6% |
| 1986 | 0.2823 °C | -232.6% |
| 1987 | 0.5047 °C | +78.7% |
| 1988 | -0.1199 °C | -123.8% |
| 1989 | -0.1596 °C | +33.1% |
| 1990 | 0.3245 °C | -303.3% |
| 1991 | 0.1319 °C | -59.4% |
| 1992 | -0.5987 °C | -553.9% |
| 1993 | -0.0807 °C | -86.5% |
| 1994 | -0.1088 °C | +34.8% |
| 1995 | 0.1044 °C | -196.0% |
| 1996 | 0.4385 °C | +319.9% |
| 1997 | -0.5302 °C | -220.9% |
| 1998 | 0.0287 °C | -105.4% |
| 1999 | 0.2461 °C | +758.2% |
| 2000 | -0.0436 °C | -117.7% |
| 2001 | 0.3315 °C | -860.6% |
| 2002 | -0.3062 °C | -192.3% |
| 2003 | 0.026 °C | -108.5% |
| 2004 | -0.6032 °C | -2420.8% |
| 2005 | -0.1103 °C | -81.7% |
| 2006 | -0.2138 °C | +93.7% |
| 2007 | -0.0703 °C | -67.1% |
| 2008 | 0.0272 °C | -138.7% |
| 2009 | 0.007 °C | -74.4% |
| 2010 | 0.1067 °C | +1429.0% |
| 2011 | -0.1996 °C | -287.1% |
| 2012 | -0.0692 °C | -65.3% |
| 2013 | -0.2734 °C | +295.0% |
| 2014 | 0.0241 °C | -108.8% |
| 2015 | -0.2214 °C | -1017.5% |
| 2016 | 0.4694 °C | -312.0% |
| 2017 | 0.5141 °C | +9.5% |
| 2018 | 0.0713 °C | -86.1% |
| 2019 | 0.5602 °C | +685.2% |
| 2020 | 0.3422 °C | -38.9% |
| 2021 | 0.7711 °C | +125.3% |
| 2022 | -0.0973 °C | -112.6% |
| 2023 | 0.0276 °C | -128.4% |
| 2024 | 0.3714 °C | +1243.9% |
| 2025 | -0.1242 °C | -133.4% |
| 2026 | -0.0099 °C | -92.0% |
Biggest year-on-year movements
Years where Summer temperature anomalies in Saint Helena changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1985 | -6650.6% | -0.0032 °C | -0.213 °C |
| 2004 | -2420.8% | 0.026 °C | -0.6032 °C |
| 2010 | +1429.0% | 0.007 °C | 0.1067 °C |
| 2024 | +1243.9% | 0.0276 °C | 0.3714 °C |
| 2015 | -1017.5% | 0.0241 °C | -0.2214 °C |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | -0.3588 °C | -1.12 °C | 0.5529 °C | 10 |
| 1950s | -0.5567 °C | -1.04 °C | -0.2059 °C | 10 |
| 1960s | -0.2997 °C | -0.6907 °C | 0.4755 °C | 10 |
| 1970s | -0.1755 °C | -0.4583 °C | 0.3862 °C | 10 |
| 1980s | -0.0855 °C | -0.53 °C | 0.5047 °C | 10 |
| 1990s | -0.0044 °C | -0.5987 °C | 0.4385 °C | 10 |
| 2000s | -0.0956 °C | -0.6032 °C | 0.3315 °C | 10 |
| 2010s | 0.0982 °C | -0.2734 °C | 0.5602 °C | 10 |
| 2020s | 0.183 °C | -0.1242 °C | 0.7711 °C | 7 |
Countries ranked near Saint Helena
More climate change data for Saint Helena
- Share of global CO₂ emissions and population 0.0% (2100)
- Spring temperature anomalies 0.7284 °C (2026)
- Temperature anomalies by month 0.8 °C (2026)
- Autumn temperature anomalies 0.2222 °C (2025)
- Winter temperature anomalies 0.2374 °C (2025)
- Share of global cumulative CO₂ emissions from cement 0.0% (2024)
- Share of global cumulative CO₂ emissions from flaring 0.0% (2024)
- CO₂ emissions per capita vs. fossil fuel consumption per capita 2.16 tonnes per person (2024)
- Share of global CO₂ emissions from oil 0.0% (2024)
- Share of global CO₂ emissions from flaring 0.0% (2024)
Frequently asked questions
- What is summer temperature anomalies in Saint Helena?
- Summer temperature anomalies in Saint Helena was -0.0099 °C in 2026, according to Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data.
- What is the highest summer temperature anomalies recorded in Saint Helena?
- The highest recorded value was 0.7711 °C in 2021.
- What is the lowest summer temperature anomalies recorded in Saint Helena?
- The lowest recorded value was -1.12 °C in 1946.
- How does Saint Helena rank for summer temperature anomalies?
- Saint Helena ranks 170th out of 193 countries with data for 2026.
- Is summer temperature anomalies rising or falling in Saint Helena?
- Over the last ten years it is down 102.1%. The long-run trend across the full record is volatile.
- Where does this Saint Helena data come from?
- The figures come from Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data, published as part of Summer temperature anomalies. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 87 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Difference in a specific month's average surface temperature from the mean temperature of the same month during the period 1991-2020, measured in degrees Celsius.