Brazzaville climate
Brazzaville (Republic of the Congo) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 26 °C79 °F, and about 1,682 mm66 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Brazzaville climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 3086 | 2272 | 2679 | 1656.5 |
| Feb | 3086 | 2373 | 2680 | 1656.5 |
| Mar | 3086 | 2373 | 2780 | 2078.1 |
| Apr | 3086 | 2373 | 2680 | 2078.1 |
| May | 3086 | 2272 | 2679 | 1495.9 |
| Jun | 3086 | 2068 | 2577 | 130.5 |
| Jul | 3086 | 1967 | 2576 | 30.1 |
| Aug | 3188 | 2069 | 2678 | 130.5 |
| Sep | 3289 | 2272 | 2780 | 572.2 |
| Oct | 3187 | 2373 | 2780 | 1756.9 |
| Nov | 2985 | 2373 | 2679 | 27811 |
| Dec | 2985 | 2272 | 2679 | 2499.8 |
| Year | 3289 | 1967 | 2679 | 1,68266 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 82% | 80% | 4.8 | 12:20 |
| Feb | 82% | 82% | 4.8 | 12:15 |
| Mar | 83% | 81% | 5.1 | 12:08 |
| Apr | 84% | 82% | 4.9 | 12:01 |
| May | 83% | 70% | 4.4 | 11:55 |
| Jun | 79% | 52% | 4.0 | 11:53 |
| Jul | 76% | 50% | 4.1 | 11:54 |
| Aug | 72% | 56% | 4.2 | 11:58 |
| Sep | 72% | 61% | 4.4 | 12:05 |
| Oct | 78% | 74% | 4.4 | 12:13 |
| Nov | 83% | 81% | 4.6 | 12:19 |
| Dec | 83% | 84% | 4.5 | 12:22 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Brazzaville is like
The warmest month is September, with an average high of 32 °C89 °F and a low of 22 °C72 °F. The coldest is July, when highs average 30 °C86 °F and lows 19 °C67 °F. Temperatures barely change through the year: the warmest and the coolest month differ by only 2.2 °C4 °F.
It is wet, with about 1,682 mm66 in of precipitation per year. The wettest three-month stretch is October–December, which brings 42% of the annual total. Months with less than 20 mm0.8 in on average: June–August. The wettest month is November (278 mm11 in), the driest is July (3 mm0.1 in).
Relative humidity ranges from 72% in September to 84% in April. The clearest skies (lowest average cloud amount, 50%) are typical of July. Average wind speed near the ground ranges from 4 km/h (2 mph) in December to 7 km/h (4 mph) in August.
Best time to visit Brazzaville
Based on these averages, the most comfortable months for sightseeing and outdoor activities are June–August: average highs of 30 °C86 °F to 31 °C88 °F with 3 mm0.1 in to 13 mm0.5 in of precipitation per month.
The most challenging month is November, which is very wet (278 mm11 in) and humid (83% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
Brazzaville weather by month
- January30 °C86 °F / 22 °C72 °F
- February30 °C86 °F / 23 °C73 °F
- March30 °C86 °F / 23 °C73 °F
- April30 °C86 °F / 23 °C73 °F
- May30 °C86 °F / 22 °C72 °F
- June30 °C86 °F / 20 °C68 °F
- July30 °C86 °F / 19 °C67 °F
- August31 °C88 °F / 20 °C69 °F
- September32 °C89 °F / 22 °C72 °F
- October31 °C87 °F / 23 °C73 °F
- November29 °C85 °F / 23 °C73 °F
- December29 °C85 °F / 22 °C72 °F
What to pack for Brazzaville
- Wetter months (October–May) — highs 2985 to 31 °C87 °F, lows 2272 to 23 °C73 °F, about 199 mm7.9 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
- Drier months (June–September) — highs 3086 to 32 °C89 °F, lows 1967 to 22 °C72 °F, about 22 mm0.9 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Brazzaville compares
Compared with Kinshasa, about 8 km to the southeast, Brazzaville has practically the same average temperature and receives 12% less precipitation (1,682 mm66 in vs 1,910 mm75 in).
Of the 4 places in the Republic of the Congo covered by World Climates, Brazzaville is the warmest by annual mean temperature and the wettest by annual precipitation. See all of them on the Republic of the Congo climate page.
Places in other countries with the most similar temperature and rainfall pattern: Kinshasa (DR Congo, Aw), Port-Gentil (Gabon, Aw) and Inkisi (DR Congo, Aw).
Nearby places
- Kinshasa 8 km · 26 °C79 °F · 1,910 mm75 in
- Inkisi 99 km · 25 °C76 °F · 1,546 mm61 in
- Mbanza-Ngungu 120 km · 23 °C74 °F · 1,402 mm55 in
- Nkayi 222 km · 26 °C78 °F · 1,669 mm66 in
- Mbanza Kongo 251 km · 25 °C77 °F · 1,109 mm44 in
- Bandundu Province 256 km · 27 °C80 °F · 1,488 mm59 in
- Matadi 267 km · 26 °C79 °F · 1,094 mm43 in
- Dolisie 290 km · 25 °C76 °F · 1,520 mm60 in
Frequently asked questions
What is the warmest month in Brazzaville?
September is the warmest month in Brazzaville, with an average high of 32 °C (89 °F) and an average low of 22 °C (72 °F).
What is the coldest month in Brazzaville?
July is the coldest month, with an average high of 30 °C (86 °F) and an average low of 19 °C (67 °F).
When does it rain the most in Brazzaville?
November is the wettest month with about 278 mm (11.0 in) of precipitation; July is the driest with about 3 mm (0.1 in).
What is the best time to visit Brazzaville?
Judging by long-term averages, the most comfortable months are June–August.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 438 m, while Brazzaville lies at about 284 m. Temperatures on this page were therefore adjusted by +1 °C1.8 °F using the standard lapse rate of 6.5 °C per 1,000 m.