Guinea-Bissau weather live forecast

Today's maximum temperature in Guinea-Bissau is expected to be 30°C. Select a day from the live weather forecast for Guinea-Bissau (Bissau) for more weather parameters.

• Monday
  11th Aug
  30
  24
  
  4
  8
• Tuesday
  12th Aug
  29
  24
  
  4
  3
• Wednesday
  13th Aug
  30
  25
  
  4
  10
• Thursday
  14th Aug
  29
  25
  
  3
  7
• Friday
  15th Aug
  29
  24
  
  4
  7

5-day weather forecast updated at 04:00 on Sunday 10th August 2025 GMT

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The 5-day weather forecast for Guinea-Bissau (Bissau) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Top Guinea-Bissau destinations

Below are temperatures expected today at popular countries, regions and places in Guinea-Bissau. Select a destination to see the detailed weather forecast for today, tomorrow and the outlook for the next five days.

• 30
  Bissau
• 29
  Gabu
• 28
  Bubaque

All Guinea-Bissau destinations

• Bissau
• Bubaque
• Gabu

Guinea-Bissau weather forecast by day

Below are the detailed weather forecasts for Guinea-Bissau for the next 5 days. The forecasts shown are for Bissau and may not represent the whole of Guinea-Bissau. Browse more destinations in Guinea-Bissau to view more weather forecasts.

Guinea-Bissau weather for Monday 11th August 2025

Expect isolated thunderstorms in Guinea-Bissau with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 4 hours of bright sunshine. There are 40-50 mm of rainfall expected with 89% chance of some rain and a light breeze of 12 kph from the south-west.

• 30
  °C maximum temperature
• 24
  °C minimum temperature
• 
  isolated thunderstorms
• 4
  hours of sunshine
• 8
  UV index (Very High)
• 89
  % chance of some rain
• <50
  mm of rainfall expected
• M
  moderate heat & humidity
• 12
  kph wind from SW

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Guinea-Bissau weather for Tuesday 12th August 2025

Expect isolated thunderstorms in Guinea-Bissau with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 20-30 mm of rainfall expected with 97% chance of some rain and a light breeze of 9 kph from the north-west.

• 29
  °C maximum temperature
• 24
  °C minimum temperature
• 
  isolated thunderstorms
• 4
  hours of sunshine
• 3
  UV index (Moderate)
• 97
  % chance of some rain
• <30
  mm of rainfall expected
• M
  moderate heat & humidity
• 9
  kph wind from NW

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Guinea-Bissau weather for Wednesday 13th August 2025

Expect isolated thunderstorms in Guinea-Bissau with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 80% chance of some rain and a gentle breeze of 18 kph from the south.

• 30
  °C maximum temperature
• 25
  °C minimum temperature
• 
  isolated thunderstorms
• 4
  hours of sunshine
• 10
  UV index (Very High)
• 80
  % chance of some rain
• <20
  mm of rainfall expected
• M
  moderate heat & humidity
• 18
  kph wind from S

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Guinea-Bissau weather for Thursday 14th August 2025

Expect isolated thunderstorms in Guinea-Bissau with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 30-40 mm of rainfall expected with 86% chance of some rain and a gentle breeze of 16 kph from the south-west.

• 29
  °C maximum temperature
• 25
  °C minimum temperature
• 
  isolated thunderstorms
• 3
  hours of sunshine
• 7
  UV index (High)
• 86
  % chance of some rain
• <40
  mm of rainfall expected
• M
  moderate heat & humidity
• 16
  kph wind from SW

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Guinea-Bissau weather for Friday 15th August 2025

Expect isolated thunderstorms in Guinea-Bissau with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 88% chance of some rain and a gentle breeze of 13 kph from the south-west.

• 29
  °C maximum temperature
• 24
  °C minimum temperature
• 
  isolated thunderstorms
• 4
  hours of sunshine
• 7
  UV index (High)
• 88
  % chance of some rain
• <10
  mm of rainfall expected
• M
  moderate heat & humidity
• 13
  kph wind from SW

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Sale

• Save on UK travel with KAYAK's deals of the day
• Find deals for destinations around the world
• Filter by travel deal type, budget & month

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

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