Guinea-Bissau weather

Read our complete guide to the weather in Guinea-Bissau.

Below are the temperatures expected today at popular destinations in Guinea-Bissau. Select a destination to compare today's forecast with average weather conditions.

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The weather guide for Guinea-Bissau (Bissau) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

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Metric (°C / mm)  |  Imperial (°F / inches)

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Guinea-Bissau weather overview

The tiny country of Guinea-Bissau borders Guinea to the south and shares its tropical climate. It has a very heavy rainy season from May to November when conditions are made unpleasant by high humidity. Things look up between December and April when Harmattan desert winds bring dryer air to the interior and trade winds perk up the coast. Dry season temperatures get higher the further you go inland but tend to plummet at night.

What to pack for Guinea-Bissau weather

Take light clothing and good waterproofs for the rains and warmer attire for dry season nights inland.

Which is the hottest month in Guinea-Bissau?

The hottest time of year in Bissau, Guinea-Bissau is normally October. Expect maximum daytime temperatures to reach 32°C with very high heat and humidity.

Which month has the most rain in Guinea-Bissau?

In terms of rainfall, August is usually the wettest month in Bissau, Guinea-Bissau with 544mm on average. There are normally 22 days in August with some rain.

When is it sunniest in Guinea-Bissau?

The sunniest time of year in Bissau, Guinea-Bissau is normally March with bright sunshine on average for 72% of daylight hours; that's 9 hours of sunshine per day.

When is the sea warmest in Guinea-Bissau?

The sea is usually at its warmest in Bissau, Guinea-Bissau in November when the water temperature reaches 29°C.

What is the time difference between Guinea-Bissau and the UK?

The time difference between Guinea-Bissau and the UK is GMT+0 hours.

What is the main language spoken in Guinea-Bissau?

The main languages spoken in Guinea-Bissau are Portuguese Creole and Portuguese.

Learn a language for Guinea-Bissau with Busuu*, Mondly* and Rocket Languages*.

What is the currency in Guinea-Bissau?

The currency in Guinea-Bissau is the West African CFA Franc (XOF).

Send money to Guinea-Bissau with World Remit*, Wise* and Monito*.

Which plugs are used in Guinea-Bissau?

Guinea-Bissau uses electrical plug type C + E + F (220 Volts).

Which side of the road do they drive on in Guinea-Bissau?

They drive on the right side of the road in Guinea-Bissau.

Do you need a visa for Guinea-Bissau?

Yes, UK passport holders do need a visa to enter Guinea-Bissau.

Check Guinea-Bissau visa requirements for all passport holders with VisaHQ*.

Compare Guinea-Bissau weather with the USA

Below the Guinea-Bissau weather chart shows average maximum daytime temperature for Guinea-Bissau (Bissau) and the USA (Washington).

Maximum daytime temperature (°C)

Guinea-Bissau (Bissau)
USA (Washington)

Metric (°C / mm)  |  Imperial (°F / inches)

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