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Guinea-Bissau weather in September

Are you planning a trip to Guinea-Bissau in September and wondering what kind of weather to expect? This page has all the details you need.

What is the weather like in Guinea-Bissau in September?

September in Guinea-Bissau generally has very warm temperatures, with heavy precipitation.

You can expect very warm maximum daytime temperatures of around 31°C and nighttime temperatures around 25°C in Bissau. The temperatures mentioned for both day and night are typical averages. However some days might get even hotter. It's best to stay prepared by wearing cloths suitable for the warmth.

September is a very rainy month with an average rainfall of around 321 mm in Bissau. Bissau enjoys a balanced 180 hours of sunlight. Ensuring it's neither too overcast nor too sunny.

For specific regional insights in Guinea-Bissau for September, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our Guinea-Bissau climate page.

Where to go in Guinea-Bissau in September

Find the average weather conditions in September for the most popular destinations in Guinea-Bissau on the map below. Click on a destination dot for more detailed information.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in Guinea-Bissau

What is the weather like in September for the most popular destinonation in Guinea-Bissau?

Average weather in Bissau

In September Bissau generally has very high temperatures with maximum daytime temperatures around 31°C, minimum nighttime temperatures around 25°C and heavy monthly rainfall. So on average the conditions are poor that month.

Bissau
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
30°C 
25°C 
156 hours 
460 mm 
22 days 
poor 
31°C 
25°C 
180 hours 
321 mm 
19 days 
poor 
October   >> October
>>  
33°C 
25°C 
220 hours 
142 mm 
10 days 
Climate in Bissau

Is your destination not in the list? Have a look at other destinations in Guinea-Bissau.

Is September the best time to visit Guinea-Bissau?

Given the typically poor weather conditions in Bissau, September may not be the ideal time to visit Guinea-Bissau.

Generally speaking, January provides perfect weather in Bissau. On the other hand, the weather in July, August and September tend to be poor.

Interested in more climate information?

We have much more information about the climate in Guinea-Bissau. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to Guinea-Bissau? Get detailed historical weather averages for many cities in Guinea-Bissau.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.