Average annual surface temperature in Iran
Iran: Average annual surface temperature was 19.71 in 2025. ▲ Rising
Latest (2025)
19.71
Change on year
up 1.4%
World rank
120th
of 193 countries
All-time high
19.74
in 2021
All-time low
15.56
in 1957
Years of data
86
1940–2025
Average annual surface temperature in Iran, 1940–2025
Source: Our World in Data.
Analysis
Iran recorded 19.71 for average annual surface temperature in 2025.
The figure is up 1.4% on the previous year and up 3.3% over ten years.
Over the whole period, average annual surface temperature in Iran peaked at 19.74 in 2021 and was at its lowest, 15.56, in 1957.
That places Iran 120th out of 193 countries with data for 2025, putting it in the middle of the range.
The long-run direction has been consistently rising across the 86 years of available data.
Average annual surface temperature in Iran, year by year
| Year | Value | Change |
|---|---|---|
| 1940 | 17.16 | — |
| 1941 | 18.17 | +5.9% |
| 1942 | 18.01 | -0.9% |
| 1943 | 16.91 | -6.1% |
| 1944 | 17.42 | +3.0% |
| 1945 | 16.73 | -4.0% |
| 1946 | 16.92 | +1.1% |
| 1947 | 17.35 | +2.5% |
| 1948 | 16.76 | -3.4% |
| 1949 | 15.99 | -4.6% |
| 1950 | 16.3 | +1.9% |
| 1951 | 17.02 | +4.4% |
| 1952 | 16.84 | -1.0% |
| 1953 | 16.69 | -0.9% |
| 1954 | 16.71 | +0.1% |
| 1955 | 17.37 | +3.9% |
| 1956 | 16.61 | -4.3% |
| 1957 | 15.56 | -6.3% |
| 1958 | 17.69 | +13.7% |
| 1959 | 16.74 | -5.4% |
| 1960 | 17.12 | +2.3% |
| 1961 | 16.7 | -2.5% |
| 1962 | 16.97 | +1.6% |
| 1963 | 17.5 | +3.1% |
| 1964 | 16.08 | -8.1% |
| 1965 | 17.11 | +6.4% |
| 1966 | 17.85 | +4.3% |
| 1967 | 16.6 | -7.0% |
| 1968 | 16.9 | +1.8% |
| 1969 | 16.98 | +0.5% |
| 1970 | 17.94 | +5.7% |
| 1971 | 17.4 | -3.0% |
| 1972 | 15.78 | -9.4% |
| 1973 | 17.35 | +10.0% |
| 1974 | 16.44 | -5.3% |
| 1975 | 16.82 | +2.3% |
| 1976 | 16.72 | -0.6% |
| 1977 | 17.75 | +6.1% |
| 1978 | 17.54 | -1.2% |
| 1979 | 17.31 | -1.3% |
| 1980 | 17.62 | +1.8% |
| 1981 | 17.22 | -2.3% |
| 1982 | 15.86 | -7.9% |
| 1983 | 16.62 | +4.8% |
| 1984 | 16.42 | -1.2% |
| 1985 | 17.05 | +3.8% |
| 1986 | 16.32 | -4.3% |
| 1987 | 17.43 | +6.8% |
| 1988 | 17.52 | +0.5% |
| 1989 | 17.04 | -2.7% |
| 1990 | 17.73 | +4.0% |
| 1991 | 17.41 | -1.8% |
| 1992 | 16.18 | -7.0% |
| 1993 | 17.17 | +6.2% |
| 1994 | 17.8 | +3.6% |
| 1995 | 17.82 | +0.1% |
| 1996 | 17.48 | -1.9% |
| 1997 | 17.59 | +0.6% |
| 1998 | 18.44 | +4.8% |
| 1999 | 18.48 | +0.2% |
| 2000 | 18.36 | -0.6% |
| 2001 | 19.02 | +3.6% |
| 2002 | 18.58 | -2.3% |
| 2003 | 18.32 | -1.4% |
| 2004 | 18.55 | +1.2% |
| 2005 | 18.26 | -1.6% |
| 2006 | 18.62 | +1.9% |
| 2007 | 18.12 | -2.6% |
| 2008 | 18.37 | +1.3% |
| 2009 | 18.49 | +0.6% |
| 2010 | 19.49 | +5.5% |
| 2011 | 18.38 | -5.7% |
| 2012 | 18.15 | -1.2% |
| 2013 | 18.7 | +3.0% |
| 2014 | 18.4 | -1.6% |
| 2015 | 19.07 | +3.6% |
| 2016 | 19.17 | +0.6% |
| 2017 | 19.02 | -0.8% |
| 2018 | 19.46 | +2.3% |
| 2019 | 18.74 | -3.7% |
| 2020 | 18.34 | -2.1% |
| 2021 | 19.74 | +7.7% |
| 2022 | 19.53 | -1.1% |
| 2023 | 19.7 | +0.9% |
| 2024 | 19.44 | -1.3% |
| 2025 | 19.71 | +1.4% |
Iran compared with similar countries
- Iran's 19.71 is below the median for upper middle income countries, which is 23.03, 86% of the median. (50 countries reporting)
- Iran's 19.71 is below the median for Middle East, North Africa, Afghanistan & Pakistan, which is 23.38, 84% of the median. (22 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | 17.14 | 15.99 | 18.17 | 10 |
| 1950s | 16.75 | 15.56 | 17.69 | 10 |
| 1960s | 16.98 | 16.08 | 17.85 | 10 |
| 1970s | 17.11 | 15.78 | 17.94 | 10 |
| 1980s | 16.91 | 15.86 | 17.62 | 10 |
| 1990s | 17.61 | 16.18 | 18.48 | 10 |
| 2000s | 18.47 | 18.12 | 19.02 | 10 |
| 2010s | 18.86 | 18.15 | 19.49 | 10 |
| 2020s | 19.41 | 18.34 | 19.74 | 6 |
Countries ranked near Iran
More reference data data for Iran
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 26.62 (2050)
- Emission Totals - Emissions (CO2eq) from N2O (AR5) - Manure left on 12,334 (2050)
- Emission Totals - Emissions (CO2eq) (AR5) - Agricultural Soils 27,934 (2050)
- Emission Totals - Direct emissions (N2O) - Manure applied to Soils 8.15 (2050)
- Emission Totals - Direct emissions (N2O) - IPCC Agriculture 78.8 (2050)
- Emission Totals - Direct emissions (N2O) - Crop Residues 5.96 (2050)
- Emission Totals - Emissions (CO2eq) from CH4 (AR5) - Enteric 35,629 (2050)
- Emission Totals - Emissions (CO2eq) from N2O (AR5) - IPCC Agriculture 29,008 (2050)
- Emission Totals - Emissions (CH4) - IPCC Agriculture 1,533 (2050)
- Emission Totals - Emissions (N2O) - Agricultural Soils 105.41 (2050)
Frequently asked questions
- What is average annual surface temperature in Iran?
- Average annual surface temperature in Iran was 19.71 in 2025, according to Our World in Data.
- What is the highest average annual surface temperature recorded in Iran?
- The highest recorded value was 19.74 in 2021.
- What is the lowest average annual surface temperature recorded in Iran?
- The lowest recorded value was 15.56 in 1957.
- How does Iran rank for average annual surface temperature?
- Iran ranks 120th out of 193 countries with data for 2025.
- Is average annual surface temperature rising or falling in Iran?
- Over the last ten years it is up 3.3%. The long-run trend across the full record is rising.
- Where does this Iran data come from?
- The figures come from Our World in Data, published as part of Average annual surface temperature. 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).