Average weather for Guinea-Bissau in August
It's hot in August in Guinea-Bissau with an average temperature of 30°C. Temperatures this month range from a low of 29°C to a high of 31°C. At night, you can expect temperatures between 24°C and 25°C.
Start of August
The month of August starts in Guinea-Bissau with hot temps, averaging around 31°C during the day and nights around 25°C. There are plenty of days with a good chance of precipitation. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
Mid August
By mid-August, daytime temps stay steady at around 31°C, with nights around 25°C. There’s a high chance of precipitation during this time. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
End of August
By the end of August, the average daytime temperature in Guinea-Bissau is around 31°C, while nighttime temps are about 25°C. There’s a significant chance of many days with precipitation. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
In August, there is an average of 545 mm of precipitation, spread over 29 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
Guinea-Bissau in August |
New York | ||
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30°C | 30°C | |
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31°C | 31°C | |
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29°C | -5°C | |
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545 mm | 79 mm | |
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29 days | 13 days |
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is August a good time to visit Guinea-Bissau?
Looking for sun? August isn’t a good month to be in Guinea-Bissau. The temperature is nice, but there’s too much chance of rain.
Temperature records
With 38°C in 2018, Guinea-Bissau reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 25°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 22°C to a highest value of 26°C.
Check out the climate of Guinea-Bissau for all months and discover the best travel time
The climate in Guinea-Bissau is based on weather data from Bissau. Other spots might have different weather. You can check out all destinations in Guinea-Bissau to get the full picture of the climate.
Daily Temperature in August in Guinea-Bissau
This chart shows the average daily high and low temperatures in August for Guinea-Bissau, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in August in Guinea-Bissau
The chart below shows the average daily precipitation in August for Guinea-Bissau, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for August, you can expect about 29 days of precipitation in Guinea-Bissau.
Daily UV index in August in Guinea-Bissau
This chart shows the average daily UV index in August in Guinea-Bissau, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in August in Guinea-Bissau over the years
This chart shows the average temperature in August in Guinea-Bissau, measured in degrees Celsius, over the past few years.
Total precipitation in August in Guinea-Bissau over the years
This chart shows the average precipitation in August in Guinea-Bissau, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in August for Guinea-Bissau
Click on any day in August to get detailed info about the usual weather on that day in Guinea-Bissau. Check out the historical temperatures and precipitation over the past 10 years on this day.































Weather experiences in August in Guinea-Bissau
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Average weather in Guinea-Bissau by month
Click on a month below to see detailed weather info for Guinea-Bissau. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Guinea-Bissau for all months at once