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.

Best time to visit Guinea-Bissau

Q: When is the best time to visit Guinea-Bissau?

The best time to visit Guinea-Bissau (Bissau) is July and September based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

Q: 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.

Q: 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.

Q: 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.

Find the best time to visit Guinea-Bissau and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Guinea-Bissau by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Top Guinea-Bissau destinations

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

All Guinea-Bissau destinations

When is the best time to visit Guinea-Bissau?

The best time to visit Guinea-Bissau (Bissau) is July and September based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

2.5
Jan
2
Feb
2.5
Mar
2.5
Apr
2
May
2
Jun
3
Jul
2.5
Aug
3
Sep
2.5
Oct
2.5
Nov
3
Dec

Change criteria

Max Day Temperature (°C)

33
Jan
35
Feb
35
Mar
35
Apr
35
May
33
Jun
30
Jul
30
Aug
30
Sep
32
Oct
33
Nov
32
Dec

Hours of Sunshine (daily)

8
Jan
8
Feb
9
Mar
9
Apr
8
May
7
Jun
6
Jul
5
Aug
6
Sep
7
Oct
8
Nov
8
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

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.

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

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.

More about Guinea-Bissau

Explore our complete guide to Guinea-Bissau with the latest travel advice for travellers and holidaymakers including official updates and local travel tips for Guinea-Bissau.

Essential travel guide
Travel guidance
Travel health
Travel features
Top travel deals
FAQs

Guinea-Bissau travel guide - essential info

Below is a beginner's guide to Guinea-Bissau with essential travel facts such as dominant language spoken, typical flight time from the UK and the local currency. You can also check whether visas are required and what plug adapter you need to pack.

Guinea-Bissau - quick facts
Time difference	UK +0 hours
Language(s)	Portuguese Creole, Portuguese
Currency	West African CFA Franc
Electricity	C + E + F plug (220V)
Driving side	Right
Visa^✝	Yes

✝ = requirements for UK travellers.

Travelling to Guinea-Bissau?
Hotels Flights eSIMs

Guinea-Bissau travel guidance

Check the latest travel guidance and advice on visiting Guinea-Bissau from official government sources (in english) from around the world including entry requirements and travel restrictions.

UK traveller advice for Guinea-Bissau - UK FCDO
Irish traveller advice for Guinea-Bissau - Department of Foreign Affairs, Ireland
Canadian travel advice for Guinea-Bissau - Government of Canada
US travel advisories for Guinea-Bissau - US Department of State
Safe travel advisories for Guinea-Bissau - Ministry of Foreign Affairs, New Zealand

Learn more about the current safety and security risks from terrorism, natural disasters and more. Read about the local laws and customs to consider when travelling around Guinea-Bissau.

Note: UK FCDO - UK Foreign, Commonwealth & Development Office

Guinea-Bissau travel health

Find out more about staying safe when travelling to Guinea-Bissau with the latest guidance on required vaccinations and recommended medication to take with you.

Vaccines & medicines for Guinea-Bissau - CDC
Health & vaccinations for Guinea-Bissau - TravelHealthPro, NaTHNac
How to stay safe & healthy in Guinea-Bissau - Fit for Travel, Public Health Scotland

Check out the general travel tips for staying safe and healthy in Guinea-Bissau, risks of preventable diseases and what to pack.

Note: CDC - Centers for Disease Control and Prevention

Guinea-Bissau travel features

Do you want to learn more about Guinea-Bissau? Read our latest features covering travel tips and insider destination guides on where to go and what to do in Guinea-Bissau.

We don't currently have any travel features on Guinea-Bissau. Discover more about holiday destinations around the world with this selection of general travel articles.

Guinea-Bissau FAQs

Read our frequently asked questions about travelling to Guinea-Bissau including the current entry restrictions, driving side, electrical plugs used and much more.

Which month has the most rain in Guinea-Bissau?

In terms of rainfall, January is usually the wettest month in Bissau, Guinea-Bissau with 0mm on average. There are normally no days in January with some rain.

When is it sunniest in Guinea-Bissau?

The sunniest time of year in Bissau, Guinea-Bissau is normally January with bright sunshine on average for 0% of daylight hours; that's 0 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 January when the water temperature reaches 0°C.

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

The time difference between Guinea-Bissau and the UK is UK time+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^*, Babbel^* and Mondly^*.

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 Wise.com^* and World Remit^*.

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^*.

Guinea-Bissau travel deals

Holidays to Guinea-Bissau

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Check out the latest deals, discount codes and special offers on holidays to Guinea-Bissau in 2025/2026. Pay low deposits and save with last minute holiday availability and free kids places.