Bissau
Guinea-Bissau
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Bissau, Guinea-Bissau

Trees along the golden sandy shores of Bijagos Islands in Bissau, Guinea Bissau in West Africa, with ships sailing on the calm waters under clear blue skies
Trees along the golden sandy shores of Bijagos Islands in Bissau, Guinea Bissau in West Africa, with ships sailing on the calm waters under clear blue skies
The last month of the summer, August, is a hot month in Bissau, Guinea-Bissau, with average temperature ranging between min 22.8°C (73°F) and max 30°C (86°F).

Temperature

In August, the average high-temperature is almost the same as in July - a hot 30°C (86°F). In Bissau, Guinea-Bissau, in August, the average low-temperature is 22.8°C (73°F).

Rainfall

The month with the most rainfall in Bissau is August when the rain falls for 22 days and typically aggregates up to 682.5mm (26.9") of precipitation.

Sea temperature

In August, the average sea temperature is 28.3°C (82.9°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In Bissau, the average length of the day is 12.5h.

Sunshine

August has the least sunshine of the year in Bissau, with an average of 5h of sunshine.

UV index

February through September, with an average maximum UV index of 12, are months with the highest UV index in Bissau. A UV Index reading of 11, and higher, represents an extreme health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
The average daily UV index of 12 transform into the following instructions:
Take all necessary precautions, as unprotected skin can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in August in Bissau?

The average high-temperature, in August, in Bissau, is 30°C (86°F), while the average low-temperature is 22.8°C (73°F).

How much does it rain in Bissau in August?

In August, in Bissau, the rain falls for 22 days. Throughout August, 682.5mm (26.9") of precipitation is accumulated.

What is the rainiest month in Bissau?

August is the month with the most rainfall in Bissau. Rain falls for 22 days and accumulates 682.5mm (26.9") of precipitation.

What is the water temperature in August in Bissau?

In August, the average sea temperature is 28.3°C (82.9°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in August in Bissau?

In August, the average length of the day is 12.5h.

What is the month with the least sunshine in Bissau?

With an average of 5h of sunshine, August has the least sunshine of the year in Bissau, Guinea-Bissau.

How long on average sun shines in August in Bissau?

In Bissau, Guinea-Bissau, the average sunshine in August is 5h.

When is the highest UV index in Bissau?

February through September, with an average maximum UV index of 12, are months with the highest UV index.

What is the UV index intensity in August in Bissau?

In Bissau, Guinea-Bissau, the average daily maximum UV index in August is 12. A UV Index value of 11, and more, symbolizes an extreme health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in August - Bissau, Guinea-Bissau
  • Average high temperature in August: 30°C

The warmest month (with the highest average high temperature) is March (33.9°C).
The month with the lowest average high temperature is July (29.4°C).

  • Average low temperature in August: 22.8°C

Months with the highest average low temperature are June, July, August, September and October (22.8°C).
The coldest month (with the lowest average low temperature) is January (17.8°C).

Average rainfall in August - Bissau, Guinea-Bissau
  • Average rainfall in August: 682.5mm

The wettest month (with the highest rainfall) is August (682.5mm).
Driest months (with the lowest rainfall) are January and March (0.5mm).

Average rainfall days in August - Bissau, Guinea-Bissau
  • Average rainfall days in August: 22 days

The month with the highest number of rainy days is August (22 days).
Months with the lowest number of rainy days are January, February and March (0 days).

Average sea temperature in August - Bissau, Guinea-Bissau
  • Average sea temperature in August: 28.3°C

Best months for swimming (with the highest average sea temperature) are October and November (28.8°C).
The coldest month (with the lowest average sea temperature) is February (24.8°C).

Average daylight in August / Average sunshine in August - Bissau, Guinea-Bissau
  • Average daylight in August: 12.5h

The month with the longest days is June (Average daylight: 12.8h).
The month with shortest days is December (Average daylight: 11.4h).

  • Average sunshine in August: 5h

Months with most sunshine are March and April (Average sunshine: 9h).
The month with least sunshine is August (Average sunshine: 5h).

Average UV index in August - Bissau, Guinea-Bissau
  • Average UV index in August: 12

Months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).