When to go · Bissau

Bissau in December

Great month. Dry, cooler.

Key facts

Verdict: Great
Temperature: 32°C (90°F)90°F (32°C) / 19°C (66°F)66°F (19°C); average high / low
Rain days: 0
Crowds: Medium; Guinea-Bissau overall
Prices: Medium; Guinea-Bissau overall

Plan around it

Verdict

GreatVoykit month rating for Bissau

Dry, cooler.

All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.

No other month rates higher than December for Bissau in this guide.

Long-term averages

BissauHighs around 32 °C (90 °F), lows around 19 °C (66 °F), rain on about 0 daysHighs around 90 °F (32 °C), lows around 66 °F (19 °C), rain on about 0 days
Coast and Bissau, Guinea-Bissau · Bissau, Cacheu, Varelabest weather
Dry and pleasant Dec–Mar with Harmattan haze; very wet Jul–Sep (Bissau gets about 2,000 mm a year).

Nov–Feb season

The easiest season: least rain, lower humidity, some Harmattan dust.

Guinea-Bissau overall: Dry season; election month in 2026 (check).

Weather, crowds and prices for any two months in Bissau, side by side.

First month

Second month

December: Dry, cooler.

January: Dry season, hot; Harmattan haze some days.

Bissau: figures are long-term averages from this guide, not a forecast.