Visit Pays Dogon
We recommend visiting in December or January which is the coolest time in the year, however temperatures are still above 30 degrees Celsius (86 degrees Fahrenheit).
Bissau Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Bissau.
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Climate overview of Bissau
The climate in Bissau, Mali, is remarkably consistent, with temperatures year-round averaging 33°C (91°F). The warmest month is March at 35°C (95°F), and the coolest is August at 30°C (86°F).
Rainfall is high, totalling around 1382 mm (54 in) per year. August is the wettest month and March the driest. The city also experiences distinct dry (November to May) and wet (July to September) seasons. March is the sunniest month, averaging 10.0 hours of sunshine per day.
Bissau Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Bissau - and find the best time to visit.
Monthly Temperature in Bissau
In Bissau temperatures are generally consistent throughout the year. Average maximum daytime temperatures range from a very hot 35°C (95°F) in March, the warmest time of the year, to a very warm 30°C (86°F) during cooler months like August.
At night, you can expect temperatures ranging from 26°C (79°F) in March to around 21°C (70°F) during August.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Bissau
Bissau experiences significant rainfall throughout the year, averaging 1382 mm (54 in) of precipitation annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, August it receives heavy rainfall, averaging 461 mm (18 in) of precipitation, recorded across 22 rainy days. In contrast, the driest month March brings less rainfall, with 0.1 mm (0 in) over 0 rainy days. For more details, please visit our Bissau Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Bissau
Seasonal changes in sunshine hours are quite dramatic in Bissau. While March receives considerable daily sunshine with up to 10.0 hours, August marks the darkest time of the year, where sunshine is scarce with only 4.0 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Bissau
The mean water temperature over the year ranges from 23°C (73°F) in February to 27°C (81°F) in July.
Water temperature over the year
Humidity in Bissau by Month
The relative humidity is high throughout the year in Bissau.
The city experiences its highest humidity in August, reaching 85%. In January, the humidity drops to its lowest level at 43%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Bissau
Compared with the rest of the year, the most comfortable conditions in Bissau are usually found in January, November and December. Conditions are generally least comfortable in February, March, April, May, July, August and September.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
good
Feb
very hot
Mar
very hot
Apr
very hot
May
very hot
Jun
mixed
Jul
very wet
Aug
very wet
Sep
very wet
Oct
mixed
Nov
good
Dec
good
- Best overall: January, November and December
- Warmest weather: February, March, April and May
- Most sunshine: March and April
- Best for swimming: Any time of year. The sea stays pleasantly warm year-round.
- Wettest months: July, August and September, when rainfall is highest.
- Seasonal pattern: Distinct dry (November to May) and wet (July to September) seasons
Frequently asked questions about the climate in Bissau
What is the best time to visit Bissau?
January, November and December typically offer the most optimal weather in Bissau. In contrast, February, March, April, May, July, August and September tend to have less optimal conditions. Bissau has distinct dry (November to May) and wet (July to September) seasons.
What temperatures can I expect in Bissau?
Daytime highs range from 30°C (86°F) in August to 35°C (95°F) in March. Nighttime lows range from 21°C (70°F) to 26°C (79°F). Temperatures stay relatively stable year-round.
How much rain does Bissau get?
Annual rainfall is around 1382 mm (54 in). August is the wettest month with 461 mm (18 in), while March is the driest with 0.1 mm (0 in).
How sunny is Bissau?
Bissau receives around 2,692 hours of sunshine per year. March is the sunniest month with 300 hours, while August is the cloudiest with just 119 hours. Overall, Bissau enjoys abundant sunshine.
Bissau 3-Day Forecast
Bissau on the map
Bissau is highlighted - select any city to see its climate.
Popular in October
Where to go in October - average daytime high across popular destinations.
Timbuktu
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34°C (93°F) Bissau
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