Weather in Tehran
Live weather and 7-day forecast for Tehran, Iran, followed by what to expect in each month of the year.
Sunrise 06:17 Sunset 17:22 Daylight 11h 5m Sun times →
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7-day forecast
Forecast data from Open-Meteo
Climate in Tehran: month by month
Averaged over 2023–2025, the warmest month in Tehran is July, with highs around 38 °C (101 °F) and lows around 26 °C (79 °F); the coolest is January, with highs around 10 °C (49 °F) and lows around 0 °C (32 °F).
Tehran gets about 219 mm (9 in) of precipitation a year. That makes it a dry climate; even the wettest month, March, averages only 53 mm.
| Month | Avg high | Avg low | Precipitation (mm) | Wet days | Daylight |
|---|---|---|---|---|---|
| January | 10° | 0° | 33 | 6 | 10h 0m |
| February | 10° | 0° | 35 | 6 | 10h 54m |
| March | 18° | 6° | 53 | 7 | 11h 55m |
| April | 25° | 12° | 19 | 4 | 13h 5m |
| May | 30° | 18° | 15 | 3 | 14h 2m |
| June | 35° | 22° | 2 | 1 | 14h 34m |
| July | 38° | 26° | 0 | 0 | 14h 21m |
| August | 38° | 25° | 0 | 0 | 13h 32m |
| September | 32° | 20° | 6 | 1 | 12h 26m |
| October | 26° | 14° | 12 | 1 | 11h 20m |
| November | 18° | 7° | 24 | 4 | 10h 18m |
| December | 12° | 2° | 20 | 3 | 9h 46m |
Averages of daily values from the ERA5 reanalysis for 2023–2025 at Tehran's coordinates (model elevation 1173 m), via Open-Meteo (CC BY 4.0). Three recent years are not a 30-year climate normal; reanalysis smooths local extremes and tends to count more light-rain days than a rain gauge would. Daylight is sunrise to sunset on the 15th of each month.
Weather questions for Tehran
What is the hottest month in Tehran?
July, with average highs of 38 °C (101 °F) and lows of 26 °C (79 °F) over 2023–2025. The coolest month is January, averaging 10 °C (49 °F) by day and 0 °C (32 °F) at night.
What is the rainiest month in Tehran?
March, with about 53 mm of precipitation on roughly 7 days. The driest month is July (0 mm), and the yearly total is around 219 mm.
When is the weather mildest in Tehran?
Going by the averages, April and October–November are the months with average daytime highs between 18 °C and 27 °C (64–81 °F) — warm but not hot. March is the month most likely to bring rain.
More about Tehran
More for Tehran
More for Tehran: local time, sunrise and sunset, moon phases, and the exact time zone.
About this forecast
The live forecast comes from Open-Meteo, which blends models from national weather services and is fetched fresh in your browser on each visit. Times in the hourly outlook are Tehran local time (Asia/Tehran).