Windhoek
Namibia
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Record high, °C | 32 | 32 | 38 | 37 | 36 | 33 | 33 | 30 | 28 | 25 | 26 | 32 | 38 |
| Average high, °C | 27 | 29 | 30 | 31 | 30 | 29 | 27 | 25 | 23 | 20 | 21 | 23 | 26 |
| Average temperature, °C | 20 | 22 | 24 | 25 | 26 | 25 | 23 | 21 | 17 | 14 | 14 | 16 | 20 |
| Average low, °C | 12 | 14 | 16 | 17 | 17 | 16 | 15 | 12 | 9 | 6 | 6 | 9 | 12 |
| Record low, °C | 0 | 6 | 8 | 10 | 7 | 11 | 10 | 3 | 2 | 0 | -1 | -1 | -1 |
| Fog, days | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Thunderstorms, days | 0 | 3 | 3 | 4 | 7 | 6 | 6 | 3 | 0 | 0 | 0 | 0 | 32 |
| Average precipitation, mm. | 2 | 9 | 21 | 22 | 61 | 74 | 67 | 29 | 6 | 1 | 0 | 0 | 291 |
| Relative humidity, % | 26 | 28 | 32 | 34 | 40 | 46 | 50 | 46 | 39 | 37 | 34 | 29 | 37 |
| Relative humidity morning, % | 34 | 38 | 44 | 51 | 64 | 72 | 69 | 67 | 55 | 50 | 42 | 39 | 52 |
| Relative humidity evening, % | 15 | 19 | 21 | 27 | 39 | 47 | 41 | 34 | 26 | 23 | 19 | 16 | 27 |
| Wind speed, km/h | 8 | 8 | 8 | 8 | 7 | 7 | 6 | 5 | 5 | 7 | 6 | 7 | 7 |
| Day Length, часов | 12 | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 11 | 11 | 11 | 12 | 13 |
| Dew point, °C | -1 | 3 | 6 | 8 | 11 | 12 | 12 | 8 | 3 | -0 | -2 | -2 | 59 |
| Growing degree-day, °C | 291 | 378 | 414 | 471 | 481 | 413 | 412 | 315 | 211 | 123 | 124 | 186 | 3819 |
| Solar radiation, global, Mj/m2 | 24 | 25 | 26 | 27 | 25 | 23 | 22 | 20 | 19 | 17 | 18 | 21 | 22 |