Annual temperature anomalies in Iran
Iran: Annual temperature anomalies was 1.37 °C in 2025. ◆ Volatile
Annual temperature anomalies in Iran, 1940–2025
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 annual temperature anomalies in Iran is 1.37 °C, measured in 2025.
The figure is up 23.7% on the previous year and up 86.7% over ten years.
Over the whole period, annual temperature anomalies in Iran peaked at 1.41 °C in 2021 and was at its lowest, -2.77 °C, in 1957.
Iran ranks 15th of 193 countries on this measure, in the top 10%.
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 | -1.19 °C | -2.34 °C | -0.1652 °C | 10 |
| 1950s | -1.58 °C | -2.77 °C | -0.6385 °C | 10 |
| 1960s | -1.35 °C | -2.25 °C | -0.4842 °C | 10 |
| 1970s | -1.23 °C | -2.56 °C | -0.391 °C | 10 |
| 1980s | -1.42 °C | -2.47 °C | -0.7099 °C | 10 |
| 1990s | -0.7233 °C | -2.15 °C | 0.1449 °C | 10 |
| 2000s | 0.1364 °C | -0.208 °C | 0.6844 °C | 10 |
| 2010s | 0.5261 °C | -0.1811 °C | 1.16 °C | 10 |
| 2020s | 1.08 °C | 0.0059 °C | 1.41 °C | 6 |
Countries ranked near Iran
More reference data data for Iran
- Spring temperature anomalies 0.0713 °C (2026)
- Summer temperature anomalies 1.08 °C (2026)
- Temperature anomalies by month 0.2419 °C (2026)
- Universal right to vote in practice 0 (2025)
- Autumn temperature anomalies 1.27 °C (2025)
- Winter temperature anomalies 1.14 °C (2025)
- Consumer price index 4,030 2010 = 100 (2025)
- Universal right to vote 2 (2025)
- Competitive elections 0 (2025)
- Men's universal right to vote 1 (2025)
Frequently asked questions
- What is annual temperature anomalies in Iran?
- Annual temperature anomalies in Iran was 1.37 °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 Iran?
- The highest recorded value was 1.41 °C in 2021.
- What is the lowest annual temperature anomalies recorded in Iran?
- The lowest recorded value was -2.77 °C in 1957.
- How does Iran rank for annual temperature anomalies?
- Iran ranks 15th out of 193 countries with data for 2025.
- Is annual temperature anomalies rising or falling in Iran?
- Over the last ten years it is up 86.7%. The long-run trend across the full record is volatile.
- Where does this Iran 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.