Bissau weather in December
Temperature, sea and sunshine in December: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in December
Good
Best time to visit: November – December
What is the weather like in Bissau in December?
In December, Bissau is hot: daytime highs average 33 °C, and even at night it stays warm at around 22 °C. The sea averages 27.4 °C – lovely and warm for swimming. The sun shines for around 8 hours a day. It hardly ever rains. On about 30 days the thermometer climbs to 30 °C or more. All in all, December is a good month for a holiday in Bissau.
December compared
How the weather changes from November to January. Tap a month to open it.
| NovemberNov | DecemberDec | JanuaryJan | |
|---|---|---|---|
| Score | 63 | 60 | 59 |
| Day | 32° | 33° | 33° |
| Night | 24° | 22° | 21° |
| Sea | 30° | 27° | 25° |
| Sun | 8 h | 8 h | 8 h |
| Rain days | 4 | 0 | 0 |
More details for December
- Daylight
- 11 h 26 min07:14 – 18:40
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 7 daysdew point 18 °C or moreAll months
- Wind
- 14 km/haverage daily peakAll months
- Cloud cover
- 44 %on averageAll months
- Hot days
- 30 days30 °C or moreAll months
- Time zone
- UTC+0Africa/Bissau
How the score comes together
- Temperatureweight 50 %26 %
- Sunshineweight 20 %85 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in December
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
Bissau in December: quick answers
Is Bissau hot in December?
Yes. In December, Bissau is hot: daytime highs average 33 °C and nights stay around 22 °C. On about 30 days the thermometer climbs to 30 °C or more.
Can you swim in Bissau in December?
Yes. In December the sea averages 27.4 °C – lovely and warm for swimming.
Does it rain much in Bissau in December?
It hardly ever rains.
Bissau month by month
The whole year in BissauAll destinations: Guinea-BissauWhere to go in DecemberSea temperature in December
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences