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

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
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 95 | 29° / 84°F | 16° / 61°F | 1 mm | 9 | 27° / 81°F |
| February | 95 | 32° / 90°F | 18° / 64°F | 0 mm | 10 | 28° / 82°F |
| March | 67 | 35° / 95°F | 20° / 68°F | 0 mm | 11 | 28° / 82°F |
| April | 57 | 36° / 97°F | 22° / 72°F | 0 mm | 11 | 29° / 84°F |
| May | 64 | 35° / 95°F | 23° / 73°F | 21 mm | 10 | 29° / 84°F |
| June | 71 | 32° / 90°F | 24° / 75°F | 132 mm | 9 | 30° / 86°F |
| July | 68 | 29° / 84°F | 24° / 75°F | 375 mm | 8 | 29° / 84°F |
| August | 68 | 28° / 82°F | 24° / 75°F | 487 mm | 8 | 29° / 84°F |
| September | 68 | 28° / 82°F | 24° / 75°F | 355 mm | 9 | 29° / 84°F |
| October | 68 | 30° / 86°F | 25° / 77°F | 173 mm | 9 | 30° / 86°F |
| November | 93 | 30° / 86°F | 22° / 72°F | 11 mm | 9 | 31° / 88°F |
| December | 95 | 29° / 84°F | 18° / 64°F | 0 mm | 8 | 28° / 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 →
Nearby places for sunshine
- Serekunda Gambia · 194 km · best in Jan · 3,054 h sun/yr
- Conakry Guinea · 341 km · best in Jan · 2,463 h sun/yr
- Dakar Senegal · 345 km · best in Feb · 3,053 h sun/yr
- Nouakchott Mauritania · 714 km · best in Jan · 3,619 h sun/yr
- Bamako Mali · 840 km · best in Dec · 3,087 h sun/yr
- Rabil Cape Verde · 912 km · best in Apr · 2,997 h sun/yr
Nearest destinations
- Ziguinchor Senegal · 100 km · 2,861 h sun/yr · best in Jan
- Cap Skirring Senegal · 131 km · 2,862 h sun/yr · best in Apr
- Freetown (Lungi-Town) Sierra Leone · 453 km · 2,196 h sun/yr · best in Jan
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