The weather in August in Bissau

It's hot in August in 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.

Looking for sun? August isn’t a good month to be in Bissau. The temperature is nice, but there’s too much chance of rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Bissau, Guinea-Bissau. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 38°C in 2018, 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.

Water temperature

The water temperature at Bissau is 30°C this month. It’s really warm, perfect for a swim.

Rainfall amount

In August, there is an average of 545 mm of precipitation, spread over 31 days. The wind speed is around 4 Bft, mostly coming from the Southwest.

Daily weather in August for Bissau

Click on any day in August to get detailed info about the usual weather on that day in Bissau. Check out the historical temperatures and precipitation over the past 10 years on this day.

August weather comparison

  Bissau New York
Average temperature 30°C 30°C
Max. temperature 31°C 31°C
Min. temperature 24°C -5°C
Total precipitation 545 mm 79 mm
Rainy days 31 days 13 days

Start of August

The month of August starts in Bissau with hot temps, averaging around 31°C during the day and nights around 25°C.

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.

End of August

By the end of August, the average daytime temperature in Bissau is around 31°C, while nighttime temps are about 25°C. There’s a significant chance of many days with precipitation.

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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.

Check out the climate of Bissau for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in August in Bissau, Guinea-Bissau. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in August in Bissau

Temperature in August in Bissau over the years

Precipitation charts

These charts show the average amount of precipitation in August in Bissau, Guinea-Bissau. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in August in Bissau

Total precipitation in August in Bissau over the years

Daily UV index in August in Bissau

This chart shows the average daily UV index in August in 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.

Weather experiences in August in Bissau

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Average weather in Bissau by month

Click on a month below to see detailed weather info for Bissau. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.