Bissau Weather in December
Bissau in December sees very high daytime temperatures of 33°C (91°F) and nighttime lows of 22°C (72°F). With just 1.6 mm (0.1 in) of rainfall expected, it's a dry month overall.
Rainfall in Bissau in December
Rain is expected on roughly a single day, totalling around 1.6 mm (0.1 in) for the month. On the rare occasion it rains this month, it usually amounts to very little.
Temperature in Bissau in December
Weather in Bissau is at its perfect in December. Highs reach 33°C (91°F), while nights settle around 22°C (72°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. Nights are mild at around 22°C (72°F), which is comfortable for most people.
Sunshine in Bissau in December
With approximately 234 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.
Average water temperature in December
With water at 26°C (79°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.If your ideal day consists of dry skies and pleasant temperatures, January, November and December typically offer the best circumstances for Bissau.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mali, check out our Bissau's climate page.
Bissau Temperature in December
Min Temperature
22°C (72°F)
Max Temperature
33°C (91°F)
Water Temperature
26°C (79°F)
Chance of Rain
2%
Precipitation
1.6 mm (0.1 in)
Rainy days
a single day
Humidity
49%
Sunshine
234 hours
Percentage Sunshine
66%
Historical weather for Bissau in December
Browse day-by-day weather records for Bissau spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Bissau historical weather extremes in December
The extremes listed below come from historical weather data collected in Bissau from 2006 through 2025.
- The hottest December day on record in Bissau reached 38°C (100°F) (December 31, 2025).
- The lowest daytime temperature in December was 24°C (75°F), recorded on December 18, 2016.
- The coldest night in December in Bissau was on December 23, 2017, with a minimum of 13°C (55°F).
Best Places in Mali in December
Find out more about the weather in Mali and which places have the best travel conditions in this month. See all of Mali in December →
perfect weather
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tolerable
unpleasant
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What to Wear in Bissau in December
Hot weather in December means keeping cool is the priority. Loose-fitting clothes in natural fabrics work best. Pack plenty of shorts, tank tops, and breathable shirts. Don't forget a hat, swimwear, and comfortable sandals. With minimal rainfall expected, you can leave the rain gear at home. With water temperatures around 26°C (79°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Bissau in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mali, check out our Bissau's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Bissau climate overview or explore weather in Mali.
