Bissau Climate by Month
Bissau, Guinea-Bissau
Hot all year, with a rainy season from July to September.
The climate in Bissau is hot all year, with a rainy season from July to September. March is the warmest month, with highs around 97°F (36°C); August is the coolest at 87°F (31°C), and nights dip to 64°F (18°C). It gets 63 in (1603 mm) of rain a year, 82% of it from July to September. December to April are almost completely dry.
- Warmest month
- 97°F(36°C)
- Average high, March
- Coldest nights
- 64°F(18°C)
- Average low, January
- Rain per year
- 63 in(1603 mm)
- Wettest: August
- Humidity
- 66%
- Sunniest: April
Best and worst months in Bissau
Best for weatherNovember to January are the best time for weather in Bissau: highs near 92°F (34°C) and almost no rain.
Least pleasantAugust is the least pleasant month: it's the wettest, with 23 in (575 mm) of rain.
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in December.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Bissau weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuaryBest | 92°F(34°C) | 64°F(18°C) | 0.0 in(0 mm) | 49% | 5.1 |
| FebFebruary | 96°F(35°C) | 66°F(19°C) | 0.0 in(1 mm) | 47% | 5.8 |
| MarMarch | 97°F(36°C) | 68°F(20°C) | 0.0 in(0 mm) | 52% | 6.5 |
| AprApril | 96°F(36°C) | 69°F(21°C) | 0.0 in(0 mm) | 57% | 6.8 |
| MayMay | 95°F(35°C) | 72°F(22°C) | 0.6 in(14 mm) | 64% | 6.4 |
| JunJune | 92°F(33°C) | 74°F(23°C) | 4.7 in(120 mm) | 71% | 5.6 |
| JulJuly | 88°F(31°C) | 74°F(23°C) | 15 in(388 mm) | 80% | 4.9 |
| AugAugust | 87°F(31°C) | 74°F(23°C) | 23 in(575 mm) | 85% | 4.6 |
| SepSeptember | 89°F(32°C) | 73°F(23°C) | 14 in(348 mm) | 83% | 4.9 |
| OctOctober | 91°F(33°C) | 74°F(23°C) | 5.5 in(140 mm) | 79% | 5.2 |
| NovNovemberBest | 93°F(34°C) | 72°F(22°C) | 0.6 in(16 mm) | 68% | 5.1 |
| DecDecemberBest | 92°F(33°C) | 66°F(19°C) | 0.0 in(1 mm) | 59% | 4.8 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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