Annual temperature anomalies in Saint Helena
Saint Helena: Annual temperature anomalies was 0.0023 °C in 2025. ◆ Volatile
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.
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
- Summer temperature anomalies -0.0099 °C (2026)
- 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)
- 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 from governments and private foundations 53.68 million constant 2024 US$ (2024)
- Foreign aid received by income group 53.68 million constant 2024 US$ (2024)
- Foreign aid received per capita 10,202 constant 2024 US$ (2024)
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
The difference of a specific year's average surface temperature from the 1991-2020 mean, in degrees Celsius.