Banjul weather by month
Banjul runs from about 25°C in March to 28°C in November, with September the wettest month at 281 mm.
warmest month
November
28°C
coolest month
March
25°C
wettest month
September
281 mm
worst air month
May
50 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 26°C | 0 mm | 329 h | 25 |
| February | 27°C | 0 mm | 310 h | 31 |
| March | 25°C | 0 mm | 341 h | 21 |
| April | 26°C | 0 mm | 352 h | 24 |
| May | 26°C | 5 mm | 347 h | 50 |
| June | 26°C | 30 mm | 326 h | 32 |
| July | 27°C | 237 mm | 265 h | 14 |
| August | 27°C | 248 mm | 244 h | 8 |
| September | 27°C | 281 mm | 228 h | 10 |
| October | 28°C | 105 mm | 290 h | 18 |
| November | 28°C | 0 mm | 316 h | 14 |
| December | 25°C | 6 mm | 279 h | 23 |
About 3,627 hours of sun a year. Roughly 93 rainy days a year.
These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.
where these numbers come from
- · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
- · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.
Last reviewed 2026-05-24. Full method, licences and the list of sources we rejected are on the methodology page.