Lagos, Nigeria skyline

Lagos Weather in September

What September is usually like in Lagos, Nigeria — from 2006–2025 averages.

Expect Lagos to reach about 27.5°C (81.5°F) by day and 23.9°C (75°F) at night in September, with 26 rainy days bringing 217 mm and around 8.3 hours of sunshine each day.

Avg high

27.5°C (81.5°F)

Avg low

23.9°C (75°F)

Rainfall

217 mm (8.5 in)

Rainy days

26 days

Sunshine

8.3 h / day

Humidity

87%

September vs the rest of the year

September is warmer than 2 of the other 11 months, and the 2nd wettest month in Lagos.

MonthAvg highvs SeptemberRainRainy days
January31.5°C (88.7°F)+4°C (+7.2°F)22 mm7
February31.5°C (88.7°F)+4°C (+7.2°F)40 mm11
March31.2°C (88.2°F)+3.7°C (+6.7°F)75 mm18
April30.9°C (87.6°F)+3.4°C (+6.1°F)103 mm19
May29.9°C (85.8°F)+2.4°C (+4.3°F)180 mm24
June28.1°C (82.6°F)+0.6°C (+1.1°F)269 mm28
July27.2°C (81°F)−0.3°C (−0.5°F)203 mm26
August27°C (80.6°F)−0.5°C (−0.9°F)133 mm22
September27.5°C (81.5°F)—217 mm26
October28.5°C (83.3°F)+1°C (+1.8°F)168 mm27
November29.8°C (85.6°F)+2.3°C (+4.1°F)66 mm18
December31.2°C (88.2°F)+3.7°C (+6.7°F)26 mm9

What September feels like in Lagos

September falls in Lagos's wet season — the rainfall numbers rise clearly above the dry months. Afternoons are warm and pleasant, good for long days out. There is little difference between day and night: nights stay warm, and evenings feel much like the afternoon. The air is muggy, so it feels hotter than the thermometer suggests.

Rain in Lagos in September

Rain is part of normal life this month, falling on most days. A rainy day brings about 8.3 mm (0.3 in) on average — steady rain rather than a passing shower. That is heavier than Lagos's usual 6.4 mm per rainy day across the year. It is among the three wettest months of the year.

Daylight and sunshine in September

Mid-month, Lagos gets 12 h 10 min of daylight, from sunrise near 6:37 am to sunset near 6:47 pm. Evenings are drawing in — 11 min less daylight than mid-August. Close to the equator, sunrise and sunset times move very little through the year. About 68% of daylight hours are sunny; in short, there are plenty of bright spells.

How September compares to the rest of the year

In Lagos's temperature order, September sits as the 3rd coolest month. Afternoons run 0.5°C (0.9°F) warmer than in August, with 84 mm more rain. The warm-up continues into October. October averages a high of 28.5°C (83.3°F).

Who September suits

  • Sightseeing: less ideal — rain falls on more than half the days.
  • Parks & outdoor: less ideal — afternoons are too warm to linger outside.
  • Beach: less ideal — too many rainy days.
  • Museums & indoor: a good choice — with rain on most days, galleries and museums make easy plans.

Tips for visiting Lagos in September

Rain Protection

A compact umbrella and a light waterproof jacket.

Sunglasses

Bright days make sunglasses worth packing.

Quick questions

How warm is Lagos in September?

Afternoons average 27.5°C (81.5°F) and nights about 23.9°C (75°F) — warm by most people's standards. It is the 3rd coolest month of the year.

Does it rain a lot in Lagos in September?

It does: about 26 rainy days bring roughly 217 mm, so plan some indoor options.

What should I wear in Lagos in September?

The numbers point to rain protection and sunglasses. Evenings feel similar to the day, so the same clothes work from morning to night.

Is September or October better for visiting Lagos?

October scores better on our climate ranking (#9 of 12 vs #11), rated Fair against Fair. October is warmer and has more rainy days.

Is September a good time to visit Lagos?

Fair

Fair — warm to hot days, rain on most days (about 26), heavy rainfall (217 mm), plenty of sunshine (8.3 h a day). Within Lagos's own year, September ranks #11 of 12 — one of the least comfortable months.

Drier places in September

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Lagos weather by month.