Common information
- Country
- Saudi Arabia
- Population
- 33 874
Weather, climate, temperature by months in Umm Lajj
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Average temperature, °C | 31 | 28 | 24 | 21 | 19 | 20 | 22 | 26 | 29 | 30 | 31 | 31 | 26 |
| Average precipitation, mm. | 0 | 2 | 12 | 9 | 3 | 2 | 15 | 8 | 1 | 0 | 0 | 0 | 52 |
| Relative humidity, % | 40 | 45 | 51 | 51 | 51 | 46 | 44 | 43 | 37 | 34 | 35 | 37 | 43 |
| Wind speed, km/h | 13 | 11 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| Day Length, часов | 13 | 12 | 11 | 11 | 11 | 12 | 12 | 12 | 14 | 14 | 14 | 13 | 12 |
| Dew point, °C | 15 | 15 | 13 | 11 | 9 | 8 | 10 | 12 | 12 | 13 | 14 | 15 | 146 |
| Growing degree-day, °C | 615 | 558 | 420 | 338 | 282 | 280 | 384 | 480 | 574 | 609 | 648 | 660 | 5848 |
| Solar radiation, global, Mj/m2 | 23 | 19 | 16 | 14 | 15 | 18 | 22 | 24 | 26 | 28 | 27 | 25 | 21 |