Lagos weather by month
Lagos runs from about 26°C in August to 30°C in April, with June the wettest month at 222 mm.
warmest month
April
30°C
coolest month
August
26°C
wettest month
June
222 mm
worst air month
January
30 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 28°C | 13 mm | 310 h | 30 |
| February | 29°C | 41 mm | 274 h | 25 |
| March | 29°C | 101 mm | 283 h | 16 |
| April | 30°C | 76 mm | 281 h | 20 |
| May | 29°C | 103 mm | 294 h | 18 |
| June | 27°C | 222 mm | 251 h | 21 |
| July | 26°C | 171 mm | 268 h | 16 |
| August | 26°C | 94 mm | 288 h | 16 |
| September | 26°C | 193 mm | 286 h | 16 |
| October | 26°C | 191 mm | 254 h | 22 |
| November | 28°C | 48 mm | 324 h | 21 |
| December | 28°C | 9 mm | 325 h | 20 |
About 3,438 hours of sun a year. Roughly 125 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 2026-05-23. Full method, licences and the list of sources we rejected are on the methodology page.