Common information
- Country
- South Africa
- Population
- 404 838
Weather, climate, temperature by months in Newcastle
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Average high, °C | 22 | 23 | 23 | 25 | 25 | 24 | 23 | 21 | 18 | 16 | 16 | 19 | 21 |
| Average temperature, °C | 17 | 19 | 20 | 22 | 22 | 22 | 21 | 17 | 14 | 11 | 11 | 14 | 18 |
| Average low, °C | 6 | 9 | 11 | 12 | 13 | 12 | 11 | 7 | 3 | 0 | 0 | 2 | 7 |
| Average precipitation, mm. | 34 | 80 | 102 | 126 | 140 | 116 | 83 | 42 | 13 | 11 | 9 | 22 | 780 |
| Relative humidity, % | 54 | 60 | 65 | 65 | 68 | 70 | 69 | 66 | 60 | 56 | 53 | 52 | 62 |
| Wind speed, km/h | 11 | 11 | 11 | 9 | 8 | 8 | 7 | 7 | 7 | 8 | 8 | 9 | 9 |
| Day Length, часов | 12 | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 11 | 11 | 11 | 12 | 13 |
| Dew point, °C | 8 | 11 | 14 | 15 | 16 | 16 | 15 | 11 | 6 | 2 | 2 | 4 | 120 |
| Growing degree-day, °C | 219 | 273 | 309 | 369 | 384 | 325 | 326 | 222 | 127 | 24 | 43 | 127 | 2748 |
| Solar radiation, global, Mj/m2 | 19 | 20 | 21 | 22 | 23 | 21 | 19 | 17 | 15 | 14 | 15 | 17 | 19 |