Click on a day for an hourly weather forecast
The weather in Teheran in May is hot. The average temperatures are between 20°C and 28°C.
You can expect a few rainy days in Teheran 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 Teheran in May 2026.
If you’re planning to visit Teheran in the near future, we highly recommend that you review the 14 day weather forecast for Teheran before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 9° / 1° | 3 | 26 | 2 | 36 mm | Bad | Teheran in January |
| February | 10° / 3° | 3 | 24 | 2 | 42 mm | Bad | Teheran in February |
| March | 16° / 7° | 3 | 27 | 0 | 48 mm | Good | Teheran in March |
| April | 22° / 13° | 3 | 27 | 0 | 43 mm | Good | Teheran in April |
| May | 28° / 20° | 1 | 30 | 0 | 39 mm | Perfect | Teheran in May |
| June | 35° / 25° | 0 | 30 | 0 | 12 mm | Ok | Teheran in June |
| July | 38° / 28° | 0 | 31 | 0 | 5 mm | Bad | Teheran in July |
| August | 37° / 26° | 0 | 31 | 0 | 4 mm | Ok | Teheran in August |
| September | 32° / 22° | 0 | 30 | 0 | 3 mm | Good | Teheran in September |
| October | 24° / 15° | 1 | 30 | 0 | 25 mm | Perfect | Teheran in October |
| November | 14° / 7° | 3 | 27 | 0 | 51 mm | Good | Teheran in November |
| December | 10° / 3° | 1 | 29 | 0 | 31 mm | Ok | Teheran in December |