Tehran weather in 2025
Tehran weather in 2025, with 365 daily observations from Open-Meteo archive data.
Interactive graph
Open Tehran in the interactive graph
Use the graph view to inspect 2025 alongside other available years for Tehran.
Year summary
In 2025, Tehran averaged 24.8 C for daily highs and 13.5 C for daily lows.
A 1991-2020 normal is not available for this location yet, so this page compares 2025 with the 2023-2025 archive baseline. The 2025 average daily high was +0.4 C from that baseline, and total precipitation was -87.2 mm from the baseline total.
The warmest month was July, with an average high of 38.3 C, while February had the lowest average low at -0.1 C.
The wettest month was December, totaling 45.9 mm. The hottest day reached 41.2 C on July 21, 2025.
Monthly averages and precipitation
| Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|
| January | 0.5 | 9.9 | 12.5 | 31 |
| February | -0.1 | 9.4 | 20.2 | 28 |
| March | 7.1 | 18.0 | 30.3 | 31 |
| April | 14.3 | 26.3 | 21.2 | 30 |
| May | 20.6 | 32.7 | 1.0 | 31 |
| June | 22.7 | 34.8 | 0.2 | 30 |
| July | 26.5 | 38.3 | 1.1 | 31 |
| August | 25.7 | 37.3 | 0.0 | 31 |
| September | 20.6 | 32.2 | 0.1 | 30 |
| October | 14.6 | 27.4 | 0.0 | 31 |
| November | 6.9 | 19.1 | 0.1 | 30 |
| December | 2.1 | 11.1 | 45.9 | 31 |
Daily records in 2025
| Record | Date | Value |
|---|---|---|
| Hottest day | July 21, 2025 | 41.2 C |
| Coldest night | December 31, 2025 | -6.7 C |
| Wettest day | December 29, 2025 | 20.6 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.