September weather forecast
Lagos, Nigeria

A lit city building in Lagos, Nigeria, with other city structures, seen from River Niger
A lit city building in Lagos, Nigeria, with other city structures, seen from River Niger

Weather in September

The first month of the autumn, September, is still a warm month in Lagos, Nigeria, with temperature in the range of an average high of 28.9°C (84°F) and an average low of 21.9°C (71.4°F).

Temperature

In Lagos, the average high-temperature in September is practically the same as in August - a still warm 28.9°C (84°F). In Lagos, in September, the average low-temperature is 21.9°C (71.4°F).

Rainfall

In Lagos, in September, it is raining for 12.7 days, with typically 167mm (6.57") of accumulated precipitation. Throughout the year, there are 102.8 rainfall days, and 1538mm (60.55") of precipitation is accumulated.

Sea temperature

In Lagos, the average seawater temperature in September is 25.8°C (78.4°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

The average length of the day in September in Lagos is 12h and 10min.
On the first day of September, sunrise is at 06:39 and sunset at 18:53. On the last day of the month, sunrise is at 06:34 and sunset at 18:38 WAT.

Sunshine

The average sunshine in September in Lagos, Nigeria, is 3.8h.

UV index

The months with the highest UV index are February through May, August through October, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an excessive health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The average daily UV index of 12 in September transform into the following instructions:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the temperature in September in Lagos?

In September, in Lagos, the average high-temperature is 28.9°C (84°F), and the average low-temperature is 21.9°C (71.4°F).

How much does it rain in Lagos in September?

In Lagos, Nigeria, in September, during 12.7 rainfall days, 167mm (6.57") of precipitation is typically accumulated.

What is the water temperature in September in Lagos?

In September, the average sea temperature in Lagos is 25.8°C (78.4°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Lagos have in September?

In September, the average day length in Lagos, Nigeria, is 12h and 10min.

When is the sunrise / sunset in September in Lagos?

In September, on the first day of the month, sunrise is at 06:39 and sunset at 18:53. On the last day of the month, in Lagos, sunrise is at 06:34 and sunset at 18:38 WAT.

How long on average sun shines in September in Lagos?

In September, the average sunshine duration in Lagos is 3.8h.

What are the months with the highest UV index in Lagos?

The months with the highest UV index in Lagos are February through May, August through October, with an average maximum UV index of 12.

What is the UV index reading in September in Lagos?

In September, the average daily maximum UV index in Lagos is 12. A UV Index reading of 11, and higher, represents an excessive health risk from exposure to the Sun's UV radiation.

Average temperature in September
Lagos, Nigeria

Average temperature in September - Lagos, Nigeria
  • Average high temperature in September: 28.9°C

The warmest month (with the highest average high temperature) is February (33.1°C).
The months with the lowest average high temperature are July and August (28.1°C).

  • Average low temperature in September: 21.9°C

The month with the highest average low temperature is March (23.8°C).
The coldest month (with the lowest average low temperature) is August (21.7°C).

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Average rainfall in September
Lagos, Nigeria

Average rainfall in September - Lagos, Nigeria
  • Average rainfall in September: 167.1mm

The wettest month (with the highest rainfall) is June (312.2mm).
The driest month (with the least rainfall) is January (14.3mm).

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Average rainfall days in September
Lagos, Nigeria

Average rainfall days in September - Lagos, Nigeria
  • Average rainfall days in September: 12.7 days

The month with the highest number of rainy days is June (16.2 days).
The month with the least rainy days is December (1.4 days).

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Average sea temperature in September
Lagos, Nigeria

Average sea temperature in September - Lagos, Nigeria
  • Average sea temperature in September: 25.8°C

The best month for swimming (with the highest average sea temperature) is May (29.2°C).
The coldest month (with the lowest average sea temperature) is August (25.3°C).

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Average daylight in September /
Average sunshine in September
Lagos, Nigeria

Average daylight in September / Average sunshine in September - Lagos, Nigeria
  • Average daylight in September: 12h and 10min

The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 45min).

  • Average sunshine in September: 3h and 48min

The months with the most sunshine are November and December (Average sunshine: 6h and 12min).
The month with the least sunshine is July (Average sunshine: 3h and 12min).

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Average UV index in September
Lagos, Nigeria

Average UV index in September - Lagos, Nigeria
  • Average UV index in September: 12

The months with the highest UV index are February, March, April, May, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 10).

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