Lagos weather in September
September in Lagos: warm, dry, with clean air — an excellent time to visit.
#3 of 12 months in Lagos · #168 of 897 destinations to visit in September · comfort 90/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
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Lagos climate normals — September
| Daytime high | 26°C / 79°F | 🌤 warm |
|---|---|---|
| Nighttime low | 18°C / 65°F | |
| Rainfall | 19 mm / 0.8 in | ☀️ dry |
| Rainy days | 3 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 17°C / 62°F | |
| Sunshine | 11 h/day | |
| Daylight | 12.4 h | |
| Wind | 20 km/h / 12 mph | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Lagos in September — FAQ
- Is September a good time to visit Lagos?
- September in Lagos: warm, dry, with clean air — an excellent time to visit. It ranks #3 of 12 months for Lagos on SeasonMap's comfort score (90/100).
- What is the weather like in Lagos in September?
- In September, Lagos averages a daily high of 26.3°C and a low of 18.2°C, with about 19.2 mm of rain over roughly 3 rainy days.
- What is the air quality in Lagos in September?
- Lagos has a mean US Air Quality Index of about 39 in September.