Click on a day for an hourly weather forecast
The weather in Tehran in May is hot. The average temperatures are between 20°C and 28°C.
You can expect a few rainy days in Tehran during May, but usually the weather is comfortable in May.
Our weather forecast can give you a great sense of what weather to expect in Tehran in May 2025.
If you’re planning to visit Tehran in the near future, we highly recommend that you review the 14 day weather forecast for Tehran before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 9° / 1° | 3 | 26 | 2 | 36 mm | Bad | Tehran in January |
| February | 10° / 3° | 3 | 24 | 2 | 42 mm | Bad | Tehran in February |
| March | 16° / 7° | 3 | 27 | 0 | 48 mm | Good | Tehran in March |
| April | 22° / 13° | 3 | 27 | 0 | 43 mm | Good | Tehran in April |
| May | 28° / 20° | 1 | 30 | 0 | 39 mm | Perfect | Tehran in May |
| June | 35° / 25° | 0 | 30 | 0 | 12 mm | Ok | Tehran in June |
| July | 38° / 28° | 0 | 31 | 0 | 5 mm | Bad | Tehran in July |
| August | 37° / 26° | 0 | 31 | 0 | 4 mm | Ok | Tehran in August |
| September | 32° / 22° | 0 | 30 | 0 | 3 mm | Good | Tehran in September |
| October | 24° / 15° | 1 | 30 | 0 | 25 mm | Perfect | Tehran in October |
| November | 14° / 7° | 3 | 27 | 0 | 51 mm | Good | Tehran in November |
| December | 10° / 3° | 1 | 29 | 0 | 31 mm | Ok | Tehran in December |