Semnan Climate: Weather by Month and Best Time to Visit
Best months for Semnan: October, May, April, September.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 8°C | -1°C | 12 mm | 3 | – | – | 6.2 |
| February | 10°C | 1°C | 14 mm | 3 | – | – | 6.7 |
| March | 16°C | 5°C | 18 mm | 4 | – | – | 7.5 |
| April | 22°C | 11°C | 13 mm | 3 | – | – | 8.7 |
| May | 28°C | 16°C | 5 mm | 2 | – | – | 8.9 |
| June | 33°C | 21°C | 1 mm | 0 | – | – | 7.8 |
| July | 36°C | 24°C | 1 mm | 0 | – | – | 7.1 |
| August | 35°C | 22°C | 1 mm | 0 | – | – | 7.5 |
| September | 30°C | 18°C | 2 mm | 1 | – | – | 8.7 |
| October | 23°C | 12°C | 5 mm | 1 | – | – | 9.0 |
| November | 15°C | 5°C | 12 mm | 3 | – | – | 7.5 |
| December | 9°C | 1°C | 10 mm | 3 | – | – | 6.5 |