Annual temperature anomalies in Saint Helena
Saint Helena: Annual temperature anomalies was 0.0023 °C in 2025. ◆ Volatile
Latest (2025)
0.0023 °C
Change on year
down 99.6%
World rank
186th
of 193 countries
All-time high
0.6611 °C
in 2024
All-time low
-0.9583 °C
in 1956
Years of data
86
1940–2025
Annual temperature anomalies in Saint Helena, 1940–2025
Source: Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data. Measured in °C.
Analysis
Saint Helena recorded 0.0023 °C for annual temperature anomalies in 2025.
Compared with earlier readings it is down 99.6% on the previous year and down 99.1% over ten years.
Over the whole period, annual temperature anomalies in Saint Helena peaked at 0.6611 °C in 2024 and was at its lowest, -0.9583 °C, in 1956.
That places Saint Helena 186th out of 193 countries with data for 2025, putting it in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Annual temperature anomalies in Saint Helena, year by year
| Year | °C | Change |
|---|---|---|
| 1940 | 0.0013 °C | — |
| 1941 | -0.1289 °C | -10258.9% |
| 1942 | -0.5545 °C | +330.2% |
| 1943 | -0.8993 °C | +62.2% |
| 1944 | -0.1239 °C | -86.2% |
| 1945 | -0.2748 °C | +121.7% |
| 1946 | -0.5881 °C | +114.0% |
| 1947 | -0.3768 °C | -35.9% |
| 1948 | -0.2134 °C | -43.4% |
| 1949 | 0.0286 °C | -113.4% |
| 1950 | -0.417 °C | -1555.6% |
| 1951 | -0.4221 °C | +1.2% |
| 1952 | -0.2058 °C | -51.3% |
| 1953 | -0.2327 °C | +13.1% |
| 1954 | -0.6616 °C | +184.3% |
| 1955 | -0.8765 °C | +32.5% |
| 1956 | -0.9583 °C | +9.3% |
| 1957 | -0.3886 °C | -59.5% |
| 1958 | -0.6524 °C | +67.9% |
| 1959 | -0.3897 °C | -40.3% |
| 1960 | -0.4587 °C | +17.7% |
| 1961 | -0.2874 °C | -37.4% |
| 1962 | -0.3137 °C | +9.2% |
| 1963 | 0.0023 °C | -100.7% |
| 1964 | -0.3656 °C | -15848.8% |
| 1965 | -0.1185 °C | -67.6% |
| 1966 | -0.1892 °C | +59.7% |
| 1967 | -0.4609 °C | +143.7% |
| 1968 | -0.2818 °C | -38.9% |
| 1969 | -0.2173 °C | -22.9% |
| 1970 | -0.4886 °C | +124.9% |
| 1971 | -0.5596 °C | +14.5% |
| 1972 | 0.1707 °C | -130.5% |
| 1973 | 0.3778 °C | +121.3% |
| 1974 | -0.0059 °C | -101.6% |
| 1975 | -0.4297 °C | +7195.1% |
| 1976 | -0.4355 °C | +1.4% |
| 1977 | -0.3028 °C | -30.5% |
| 1978 | -0.4552 °C | +50.3% |
| 1979 | -0.1835 °C | -59.7% |
| 1980 | -0.2159 °C | +17.6% |
| 1981 | -0.4337 °C | +100.9% |
| 1982 | -0.4843 °C | +11.7% |
| 1983 | -0.0246 °C | -94.9% |
| 1984 | 0.203 °C | -925.7% |
| 1985 | -0.0133 °C | -106.6% |
| 1986 | 0.205 °C | -1639.7% |
| 1987 | 0.2062 °C | +0.6% |
| 1988 | 0.1466 °C | -28.9% |
| 1989 | 0.0007 °C | -99.5% |
| 1990 | -0.0424 °C | -6118.6% |
| 1991 | -0.1468 °C | +246.3% |
| 1992 | -0.6789 °C | +362.5% |
| 1993 | 0.0869 °C | -112.8% |
| 1994 | -0.152 °C | -274.8% |
| 1995 | 0.0258 °C | -117.0% |
| 1996 | 0.0395 °C | +53.0% |
| 1997 | -0.2922 °C | -839.4% |
| 1998 | -0.1765 °C | -39.6% |
| 1999 | 0.0604 °C | -134.2% |
| 2000 | 0.0023 °C | -96.2% |
| 2001 | -0.003 °C | -229.2% |
| 2002 | -0.16 °C | +5254.8% |
| 2003 | 0.3049 °C | -290.5% |
| 2004 | -0.333 °C | -209.2% |
| 2005 | 0.0587 °C | -117.6% |
| 2006 | -0.1666 °C | -383.8% |
| 2007 | -0.226 °C | +35.6% |
| 2008 | 0.0984 °C | -143.5% |
| 2009 | 0.3024 °C | +207.4% |
| 2010 | 0.3117 °C | +3.1% |
| 2011 | -0.1412 °C | -145.3% |
| 2012 | -0.435 °C | +208.0% |
| 2013 | -0.1049 °C | -75.9% |
| 2014 | 0.1316 °C | -225.5% |
| 2015 | 0.2705 °C | +105.6% |
| 2016 | 0.3924 °C | +45.1% |
| 2017 | 0.1381 °C | -64.8% |
| 2018 | -0.0157 °C | -111.4% |
| 2019 | 0.5632 °C | -3688.9% |
| 2020 | 0.2448 °C | -56.5% |
| 2021 | 0.2863 °C | +16.9% |
| 2022 | 0.3016 °C | +5.3% |
| 2023 | 0.2584 °C | -14.3% |
| 2024 | 0.6611 °C | +155.9% |
| 2025 | 0.0023 °C | -99.6% |
Biggest year-on-year movements
Years where Annual 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 |
|---|---|---|---|
| 1964 | -15848.8% | 0.0023 °C | -0.3656 °C |
| 1941 | -10258.9% | 0.0013 °C | -0.1289 °C |
| 1975 | -7195.1% | -0.0059 °C | -0.4297 °C |
| 1990 | -6118.6% | 0.0007 °C | -0.0424 °C |
| 2002 | -5254.8% | -0.003 °C | -0.16 °C |
| 2019 | +3688.9% | -0.0157 °C | 0.5632 °C |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | -0.313 °C | -0.8993 °C | 0.0286 °C | 10 |
| 1950s | -0.5205 °C | -0.9583 °C | -0.2058 °C | 10 |
| 1960s | -0.2691 °C | -0.4609 °C | 0.0023 °C | 10 |
| 1970s | -0.2312 °C | -0.5596 °C | 0.3778 °C | 10 |
| 1980s | -0.041 °C | -0.4843 °C | 0.2062 °C | 10 |
| 1990s | -0.1276 °C | -0.6789 °C | 0.0869 °C | 10 |
| 2000s | -0.0122 °C | -0.333 °C | 0.3049 °C | 10 |
| 2010s | 0.1111 °C | -0.435 °C | 0.5632 °C | 10 |
| 2020s | 0.2924 °C | 0.0023 °C | 0.6611 °C | 6 |
Countries ranked near Saint Helena
More reference data data for Saint Helena
- Foreign aid received as grants and concessional loans, annual growth 185.85 % change on previous year (2024)
- Foreign aid received by income group 53.68 million constant 2024 US$ (2024)
- Foreign aid received from governments and private foundations 53.68 million constant 2024 US$ (2024)
- Foreign aid received by income group, annual growth rate 185.85 % change on previous year (2024)
- Foreign aid received from governments and private foundations, annual 185.85 % change on previous year (2024)
- Foreign aid received, annual growth rate 185.85 % change on previous year (2024)
- Foreign aid received as grants and concessional loans 53.68 million constant 2024 US$ (2024)
- Foreign aid received 53.68 million constant 2024 US$ (2024)
- Foreign aid received per capita 10,202 constant 2024 US$ (2024)
- Exposure to extreme precipitation — Annual precipitation change 44.23 Millimetres per year (2023)
Frequently asked questions
- What is annual temperature anomalies in Saint Helena?
- Annual temperature anomalies in Saint Helena was 0.0023 °C in 2025, according to Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data.
- What is the highest annual temperature anomalies recorded in Saint Helena?
- The highest recorded value was 0.6611 °C in 2024.
- What is the lowest annual temperature anomalies recorded in Saint Helena?
- The lowest recorded value was -0.9583 °C in 1956.
- How does Saint Helena rank for annual temperature anomalies?
- Saint Helena ranks 186th out of 193 countries with data for 2025.
- Is annual temperature anomalies rising or falling in Saint Helena?
- Over the last ten years it is down 99.1%. 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 Annual temperature anomalies. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 86 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Difference of a specific year's average surface temperature from the 1991-2020 mean, in degrees Celsius.