Common information
CountryAfghanistan
Population272 806
Weather, climate, temperature by months in Herat
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Record high, °C | 39 | 35 | 27 | 25 | 24 | 27 | 30 | 36 | 40 | 42 | 44 | 40 | 44 |
| Average high, °C | 31 | 24 | 17 | 11 | 8 | 10 | 16 | 23 | 29 | 36 | 37 | 36 | 23 |
| Average temperature, °C | 22 | 16 | 9 | 5 | 3 | 6 | 11 | 17 | 21 | 27 | 29 | 27 | 16 |
| Average low, °C | 12 | 6 | 1 | -2 | -5 | -2 | 3 | 9 | 13 | 17 | 20 | 18 | 7 |
| Record low, °C | 2 | -4 | -8 | -22 | -19 | -11 | -13 | -2 | 2 | 10 | 15 | 10 | -22 |
| Rain, days | 0 | 0 | 0 | 3 | 2 | 3 | 3 | 3 | 1 | 0 | 0 | 0 | 15 |
| Average precipitation, mm. | 0 | 3 | 10 | 40 | 53 | 61 | 61 | 38 | 4 | 0 | 0 | 0 | 269 |
| Relative humidity, % | 34 | 43 | 55 | 67 | 72 | 69 | 63 | 57 | 45 | 34 | 30 | 30 | 50 |
| Wind speed, km/h | 34 | 28 | 25 | 27 | 30 | 32 | 36 | 36 | 35 | 41 | 48 | 44 | 35 |
| Day Length, of hours | 13 | 12 | 11 | 10 | 11 | 11 | 12 | 12 | 14 | 15 | 15 | 14 | 13 |
| Dew point, °C | 6 | 3 | 1 | -0 | -2 | 0 | 4 | 8 | 9 | 9 | 10 | 8 | 56 |
| Growing degree-day, °C | 363 | 189 | 0 | 0 | 0 | 0 | 25 | 195 | 353 | 495 | 586 | 527 | 2733 |
| Solar radiation, global, Mj/m2 | 21 | 16 | 12 | 9 | 10 | 13 | 17 | 21 | 24 | 26 | 26 | 24 | 18 |