Sunshine Map

Bissau weather by month & the best time to visit

🇬🇼 Guinea-Bissau · coastal city break · tropical — wet & dry seasons climate

The best time to visit Bissau is January — its sunniest month (Sunshine Score 95/100), with February and December close behind. Bissau averages about 2,736 hours of sunshine a year. Daytime highs around 29°C / 84°F and roughly 1 mm of rain in January.

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Sun hours / year
2,736
Sunniest month
January
Peak score
95/100
Rain / year
1,555 mm
Midday UV at peak
11 (extreme)
Sea at warmest
31°C / 88°F
Population
440k
Elevation
29 m
Bissau, Guinea-Bissau
Bissau — photo via Wikimedia Commons

When is the best time to visit Bissau?

For sunshine, the best time to visit Bissau is January, then February and December. The dullest month is April (57/100, 0 mm of rain). The full month-by-month picture is in the table below.

How sunny is Bissau?

Bissau gets a lot of sun: around 2,736 hours a year. January (95/100) is noticeably better than April (57). It is the only destination Sunshine Map tracks in Guinea-Bissau. Rain is strongly seasonal here: roughly 78% of the year's 1,555 mm falls in the three months around August.

Sunshine Score by month

January: 9595February: 95March: 67April: 57May: 64June: 71July: 68August: 68September: 68October: 68November: 93December: 95JFMAMJJASOND
MonthScoreDay highNight lowRainUVSea
January95 29° / 84°F16° / 61°F 1 mm927° / 81°F
February95 32° / 90°F18° / 64°F 0 mm1028° / 82°F
March67 35° / 95°F20° / 68°F 0 mm1128° / 82°F
April57 36° / 97°F22° / 72°F 0 mm1129° / 84°F
May64 35° / 95°F23° / 73°F 21 mm1029° / 84°F
June71 32° / 90°F24° / 75°F 132 mm930° / 86°F
July68 29° / 84°F24° / 75°F 375 mm829° / 84°F
August68 28° / 82°F24° / 75°F 487 mm829° / 84°F
September68 28° / 82°F24° / 75°F 355 mm929° / 84°F
October68 30° / 86°F25° / 77°F 173 mm930° / 86°F
November93 30° / 86°F22° / 72°F 11 mm931° / 88°F
December95 29° / 84°F18° / 64°F 0 mm828° / 82°F

Sea temperature in Bissau by month

The sea off Bissau is warmest in November at around 31°C / 88°F, and coolest in January at 27°C / 81°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.

See Bissau on the interactive sunshine globe →

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