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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, Guinea-Bissau, 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).
The city has a wet climate, receiving around 1398 mm (55 in) of rainfall per year. Despite the high annual total, it has distinct dry (November to May) and wet (July to September) seasons. August is the wettest month. Sunshine peaks in March, when the city sees around 9.3 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. On average, daytime temperatures range from a very hot 35°C (95°F) in March to a very warm 30°C (86°F) in August.
Nighttime temperatures range from 26°C (79°F) in March to 21°C (70°F) in 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 1398 mm (55 in) of precipitation annually. The seasons in Bissau bring significant changes in precipitation. The wettest month, August, receives heavy rainfall, with an average of 460 mm (18 in) of precipitation. This rainfall is distributed across 22 rainy days.
In contrast, the driest month, March, experiences much less rainfall, totaling 0.1 mm (0 in) over 0 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. 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
In Bissau, summer days are longer and more sunny, with daily sunshine hours peaking at 9.3 hours in March. As the darker season arrives, the brightness of the sun becomes less. August sees a soft sun for only 5.2 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Bissau
The most favourable weather available in Bissau usually occurs in January. Conditions are generally most challenging in February, March, April, May, July, August, September, October, November and December.
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
wet
Nov
very hot
Dec
very hot
- Best overall: January
- Warmest weather: February, March, April and May
- Most sunshine: March and April
- 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 typically offers the most optimal weather in Bissau. In contrast, February, March, April, May, July, August, September, October, November and December 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 1398 mm (55 in). August is the wettest month with 460 mm (18 in), while March is the driest with 0.1 mm (0 in).
How sunny is Bissau?
Bissau receives around 2,731 hours of sunshine per year. March is the sunniest month with 280 hours, while August is the cloudiest with just 156 hours. Overall, Bissau enjoys abundant sunshine.
Bissau 3-Day Forecast
Bissau on the map
Bissau is highlighted - select any city to see its climate.
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