Cotonou, Benin — Weather in August 2026

Climate Overview

Cotonou, Benin in August has warm conditions, with highs averaging 26.5°C (80°F). Rain falls on about 18 days this month, totalling around 121 mm. Sea temperature reaches 26°C (79°F).

This month falls at the end of Summer.

Temperatures remain fairly steady throughout August, with daily highs around 27°C (81°F).

Rainfall is heaviest during the last third of the month, while the first third tends to be drier.

Expect around 9.0h of sunshine at the start of August, decreasing to 8.5h by the end.

The warmest days tend to fall around the 17th, averaging 26.6°C (80°F).

Compared to July, this month is about 0°C cooler with 3 fewer rainy days.

Monthly August Averages

Temperature

27°C / 24°C

Feels Like

30°C / 27°C

Rain

18 days · 121 mm

Sunshine

9.1h / day

Humidity

86% — Very Humid

Wind

18 km/h

Wind Direction

SW (227°)

Gusts

35 km/h

Daylight

12.3 h

Cloud Cover

80%

Clear Sky Days

UV Index

7.5 — Very High

Sea Temperature

26°C

Dew Point

23°C — Muggy

Moon Phase

Waxing Crescent · 3%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

High Low

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 06:45

Daylight 12.3h

Sunset 19:05

What to Expect

Daytime temperatures around 27°C (80°F) are ideal for full-day outdoor exploration. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.

Recent yearly records for August have stayed close to the long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	30°C / 26°C	36°C / 30°C	6days (20 mm) Good	10.4h Excellent	80% Humid	7.7 Very High	Fair	View Details
February	30°C / 26°C	37°C / 32°C	10days (31 mm) Wet	10.5h Excellent	82% Humid	8.2 Very High	Poor	View Details
March	31°C / 27°C	37°C / 32°C	16days (63 mm) Wet	10.4h Excellent	82% Humid	8.3 Very High	Poor	View Details
April	30°C / 27°C	37°C / 32°C	14days (72 mm) Wet	10.4h Excellent	81% Humid	8.1 Very High	Poor	View Details
May	30°C / 26°C	35°C / 31°C	21days (148 mm) Wet	9.7h Good	82% Humid	7.7 Very High	Wet	View Details
June	28°C / 25°C	33°C / 29°C	26days (232 mm) Wet	8.1h Good	85% Humid	6.9 High	Wet	View Details
July	27°C / 24°C	31°C / 28°C	21days (147 mm) Wet	9h Good	86% Very Muggy	6.8 High	Wet	View Details
August best	27°C / 24°C	30°C / 27°C	18days (121 mm) Wet	9.1h Good	86% Very Muggy	7.5 Very High	Wet	View Details
September	27°C / 24°C	32°C / 28°C	23days (187 mm) Wet	8.5h Good	86% Very Muggy	7.5 Very High	Wet	View Details
October	28°C / 25°C	34°C / 30°C	25days (192 mm) Wet	9.1h Good	85% Humid	7.4 Very High	Wet	View Details
November	29°C / 26°C	36°C / 31°C	19days (73 mm) Wet	10.4h Excellent	83% Humid	7.6 Very High	Wet	View Details
December	30°C / 26°C	36°C / 31°C	10days (31 mm) Wet	10.5h Excellent	81% Humid	7.3 Very High	Poor	View Details

What to Wear

Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

UmbrellaWaterproof jacketWaterproof shoesBreathable clothingSunscreen (SPF 30+)Sun hatSunglasses

Frequently Asked Questions

Expand all

Is August a good time to visit Cotonou?

August is typically wet for visiting Cotonou, with average highs of 27°C (80°F) and around 18 rainy days. Cotonou, Benin in August has warm conditions, with highs averaging 26.5°C (80°F). Rain falls on about 18 days this month

Does it rain a lot in Cotonou in August?

Cotonou typically sees around 18 rainy days in August with 121 mm (4.8 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Cotonou in August?

Nights stay pleasantly warm in Cotonou during August, around 24°C (75°F). Light evening wear is sufficient.

What should I pack for Cotonou in August?

With highs of 27°C (80°F) and lows of 24°C (75°F) in August, we recommend: Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). Comfortable walking shoes are essential.

Is August among the best months weather-wise in Cotonou?

Yes, August offers some of the best weather conditions in Cotonou with comfortable temperatures and lower chances of rain.

What is the UV index in Cotonou in August?

The average UV index in Cotonou during August is 8 (very high). Strong sun protection is essential — SPF 50+, protective clothing, and avoid prolonged outdoor exposure during peak hours.

How many hours of daylight are there in Cotonou in August?

Cotonou gets approximately 12 hours of daylight per day in August, with around 9 hours of sunshine.

Does it snow in Cotonou in August?

Snow is uncommon in Cotonou during August based on 10-year climate averages.

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