Banjul
Gambia
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Record high, °C | 39 | 38 | 39 | 36 | 36 | 39 | 42 | 43 | 42 | 42 | 36 | 33 | 43 |
| Average high, °C | 30 | 31 | 31 | 29 | 28 | 32 | 36 | 36 | 36 | 33 | 30 | 29 | 32 |
| Average temperature, °C | 28 | 30 | 29 | 27 | 26 | 30 | 33 | 33 | 33 | 32 | 29 | 28 | 30 |
| Average low, °C | 27 | 28 | 27 | 25 | 25 | 28 | 30 | 30 | 30 | 30 | 27 | 26 | 28 |
| Record low, °C | 21 | 21 | 16 | 10 | 15 | 20 | 21 | 17 | 20 | 20 | 20 | 21 | 10 |
| Rain, days | 5 | 3 | 1 | 0 | 1 | 0 | 1 | 0 | 3 | 4 | 6 | 10 | 34 |
| Fog, days | 1 | 6 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 15 |
| Thunderstorms, days | 7 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 5 | 10 | 28 |
| Average precipitation, mm. | 242 | 95 | 7 | 1 | 0 | 1 | 0 | 2 | 20 | 116 | 218 | 288 | 991 |
| Relative humidity, % | 81 | 72 | 55 | 40 | 33 | 32 | 31 | 34 | 44 | 60 | 74 | 80 | 53 |
| Relative humidity evening, % | 65 | 63 | 40 | 23 | 0 | 0 | 0 | 26 | 37 | 48 | 63 | 74 | 37 |
| Wind speed, km/h | 3 | 3 | 3 | 4 | 5 | 5 | 5 | 5 | 6 | 5 | 5 | 4 | 4 |
| Day Length, часов | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 12 |
| Dew point, °C | 24 | 23 | 18 | 10 | 0 | 0 | 0 | 12 | 17 | 21 | 23 | 23 | 171 |
| Growing degree-day, °C | 558 | 620 | 592 | 534 | 525 | 565 | 620 | 600 | 620 | 600 | 594 | 560 | 6988 |
| Solar radiation, global, Mj/m2 | 19 | 19 | 19 | 18 | 18 | 20 | 23 | 24 | 23 | 22 | 20 | 19 | 20 |