Weather in Lagos in September 2025
- September is usually the wettest month of the year in Lagos;
Average weather
Average temperature in Lagos in September
The temperature in September is +29°C on average, with a range between a maximum of +31°C during the day and a minimum of +24°C at night.
The average maximum temperature goes up 14% by the end of the month, compared with the beginning of the month, from +29°C to +30°C.
Is Lagos warm or cold in September?
Lagos is typically warm in September.
Maximum temperatures go up compared to the previous month from +27°C to +28°C. The minimum temperature also goes up from +23°C to +24°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
September is one of the coolest months in Lagos, here is the comparison with other months:
Water temperature in Lagos in September
Water in Lagos in September is Warm. It varies from +25°C to +27°C, with an average of +26°C. This is almost similar to the air temperature, which averages +28°C.
The water temperature in September is one of the coldest of the entire year:
Can you swim in Lagos in September?
Climate in Lagos in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +27°C | +28°C | +29°C | ||||
| Min. temperature | ||||||
| +21°C | +22°C | +22°C | ||||
| Max. temperature | ||||||
| +31°C | +31°C | +32°C | ||||
| Rainfall | ||||||
| 131 mm | 174 mm | 166 mm | ||||
| Wind | ||||||
| 3 m/s | 2 m/s | 2 m/s | ||||
| Avg. water temperature | ||||||
| +25°C | +26°C | +28°C | ||||
| Humidity | ||||||
| 86% | 87% | 86% | ||||
| Air pressure | ||||||
| 1013 HPa | 1012 HPa | 1011 HPa | ||||
| Sunny days | ||||||
| 0 | 0 | 0 | ||||
| Cloudy days | ||||||
| 2 | 1 | 0 | ||||
| Rainy days | ||||||
| 28 | 25 | 22 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. It’s getting warmer as September arrives. The average maximum temperature goes up from +27°C to +28°C during the day. Prepare for more rain. Average rainfall goes from 131 mm to 174 mm. Humidity rises from 86% to 87%. Winds are calmer in comparison to August, going down from 3 m/s to 2 m/s on average. The amount of sunny days stay about the same, averaging 0 sunny days during the month.
October brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Lagos is gradually decreasing during September, going from 3 m/s to 2 m/s over the course of the month.
Rain
How was the weather last September in Lagos?
Climate Change over Years
The climate in Lagos in September has not changed much over the last 43 years.
The average temperature was the lowest in 1986 (+29°C) and the highest in 2020 (+31°C). The driest year was 2013 with only 1129 mm of rainfall, and the wettest year was 1980 with 2312 mm.
FAQ
Is September a good time to visit Lagos?
Can you sunbathe in Lagos in September?
Can you swim in Lagos in September?
Is Lagos rainy in September?
Is it sunny in Lagos in September?
Other cities in Nigeria
Monthly weather in Lagos
Source of the data
For this page, we’ve looked at the typical weather in Lagos, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.