Guinea-Bissau

Guinea-Bissau Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Guinea-Bissau in September.

🔎

Thinking about venturing to Guinea-Bissau this September and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Guinea-Bissau in September

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

Temperatures

You can expect very warm maximum daytime temperatures of around 31°C (88°F) and nighttime temperatures around 25°C (77°F) 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.

For a closer look at conditions across Guinea-Bissau, refer to the map below.

Precipitation

September is a very rainy month with an average rainfall of around 321 mm (13 in) in Bissau.

Average sunshine

Most places get a reasonable amount of sunshine. Take Bissau as an example - it receives around 180 hours of sunlight, offering a nice mix of sunny and partly cloudy days. Want to compare this with brighter destinations? Try our weather planner to explore your options.

Explore Guinea-Bissau by month

Pick a month to see the average temperature, rainfall and sunshine in Guinea-Bissau — and find the best time to visit. (based on Bissau)

Best Places to Visit in Guinea-Bissau in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Guinea-Bissau.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Guinea-Bissau

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

Bissau

In September Bissau generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are poor that month.

August
September
October
Max temperature
30°C (86°F)
31°C (88°F)
33°C (91°F)
Min temperature
25°C (77°F)
25°C (77°F)
25°C (77°F)
Monthly sun hours
156 hours
180 hours
220 hours
Monthly rainfall
460 mm (18 in)
321 mm (13 in)
142 mm (5.6 in)
Monthly rainy days
22 days
19 days
10 days
Weather conditions

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

Guinea-Bissau weather in September: frequently asked questions

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

September in Guinea-Bissau brings poor weather. In Bissau, daytime temperatures are typically around 31°C (88°F) and nighttime lows hover near 25°C (77°F).

What is the average temperature in Guinea-Bissau in September?

Average temperatures in Guinea-Bissau during September range from a nighttime low near 25°C (77°F) to a daytime high around 31°C (88°F) in Bissau.

Does Guinea-Bissau get a lot of rain in September?

Rainfall in Guinea-Bissau peaks during September. Bissau averages roughly 321 mm (13 in), so frequent and sometimes heavy showers are the norm.

Is September a Good 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 tolerable weather in Bissau. On the other hand, the weather in February, March, April, May, July, August, September, October, November and December tend to be poor.

Interested in more climate information?

We have much more information about the climate in Guinea-Bissau.

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 travel conditions. Find out where to go with our weather planner.