Climate averages 1991–2020
Brazzaville weather
in December.
A hot, wet month: the coolest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Brazzaville: daytime highs average 28.9°C and nights cool to about 22.3°C. By daytime temperature it is the coolest month of the year.
Expect about 156 mm of rain on roughly 25 days, which makes December a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 22 min on an average December day.
The nearest other city in this atlas is Kinshasa (8 km away). In December its highs average 28.9°C, about as warm as Brazzaville, with 156 mm of rain.
Among the 4 cities listed in the Republic of the Congo, Brazzaville ranks 2nd of 4 for the warmest December highs and 2nd of 4 for the driest December (rainfall, lowest first). The mean December high of those 4 cities is 28.8°C; Brazzaville is level with that mean.
From December to January, average highs rise by 0.5°C to 29.3°C, and monthly rainfall falls from 156 mm to 116 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Brazzaville climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.3°C22.5°C | 22.5°C | 116 | 20.9 | 12.312 h |
| February | 30.0°C22.8°C | 22.8°C | 103 | 15.8 | 12.212 h |
| March | 30.3°C23.0°C | 23.0°C | 109 | 17.9 | 12.112 h |
| April | 29.8°C23.0°C | 23.0°C | 140 | 21.2 | 12.012 h |
| May | 29.6°C22.6°C | 22.6°C | 73 | 14.5 | 11.912 h |
| June | 29.6°C20.7°C | 20.7°C | 4.0 | 1.2 | 11.912 h |
| July | 29.9°C19.8°C | 19.8°C | 0.6 | 0.2 | 11.912 h |
| August | 30.1°C20.4°C | 20.4°C | 4.7 | 1.0 | 12.012 h |
| September | 31.2°C21.7°C | 21.7°C | 16 | 5.0 | 12.112 h |
| October | 30.4°C22.5°C | 22.5°C | 112 | 18.7 | 12.212 h |
| November | 29.0°C22.3°C | 22.3°C | 183 | 25.0 | 12.312 h |
| December, selected | 28.9°C22.3°C | 22.3°C | 156 | 24.9 | 12.412 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Kinshasa in DecemberDemocratic Republic of the Congo · 8 kmHigh 28.9°C · Low 22.4°C · 156 mm rain
- Masina in DecemberDemocratic Republic of the Congo · 18 kmHigh 29.0°C · Low 22.4°C · 160 mm rain
- Inkisi in DecemberDemocratic Republic of the Congo · 99 kmHigh 28.5°C · Low 21.1°C · 179 mm rain
- Mbanza-Ngungu in DecemberDemocratic Republic of the Congo · 120 kmHigh 26.9°C · Low 19.7°C · 205 mm rain
- Kimpese in DecemberDemocratic Republic of the Congo · 172 kmHigh 29.4°C · Low 21.9°C · 180 mm rain
- Nkayi in DecemberRepublic of the Congo · 222 kmHigh 29.8°C · Low 22.5°C · 175 mm rain
- Mbanza Kongo in DecemberAngola · 251 kmHigh 28.0°C · Low 20.6°C · 201 mm rain
- Bandundu Province in DecemberDemocratic Republic of the Congo · 256 kmHigh 29.4°C · Low 22.7°C · 176 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Brazzaville) is explained once on the Brazzaville year overview and on the Sources, method and limits page.
Kinshasa lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures come from the same 0.1° cell and differ only by the elevation adjustment.