Brazzaville weather in December

December in Brazzaville: sweltering, soaked, with muggy air — a gamble, with 25 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Brazzaville🇨🇬 Congo · Central Africa · City59
  1. 65Jan
  2. 63Feb
  3. 61Mar
  4. 58Apr
  5. 67May
  6. 78Jun
  7. 82Jul
  8. 80Aug
  9. 75Sep
  10. 65Oct
  11. 55Nov
  12. 59Dec

#10 of 12 months in Brazzaville · #990 of 1413 destinations to visit in December · comfort 59/100 (tier D)

Days
32°C
Nights
23°C
Wet days
25
Sun
8.9 h
Humidity
86%
Daylight
12 h
Brazzaville, Congo
Photo: Africany · CC0

Traveller notes on Brazzaville in December

Other months in Brazzaville

Detailed month-specific weather trip reports for Brazzaville are essentially absent from the forum, with most discussion instead focused on visa requirements, vaccinations against hepatitis, typhoid and yellow fever, and malaria precautions rather than granular climate detail. Given the limited destination-specific weather coverage, this note is grounded in the well-established regional pattern for this part of equatorial Central Africa: January sits within the warmer, wetter half of the year here, with consistently hot, humid conditions and frequent rain typical of the Congo Basin's tropical climate. Posters generally emphasize health precautions - vaccinations and malaria prevention - as the more pressing planning concern for a Brazzaville visit than the specific month chosen.
Tripadvisor community · January · 1 month ago · Read more on Tripadvisor ↗
Forum posters confirm July sits within the Congo Basin's dry season (roughly June through September), a period locals and regular visitors describe as the easier, more reliable window for travel around Brazzaville compared to the wetter months. Posters report positive July experiences here, including a multi-day safari-style trip into the wider Congo region praised as a highlight of their visit. The dry season's near-total lack of rain does come with real heat and humidity by afternoon, a genuine tropical Congo Basin climate rather than an arid one, so posters generally recommend light, breathable clothing alongside sun protection for a July visit despite the dry-season framing.
Tripadvisor community · July · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Brazzaville's card on the map.

Brazzaville climate normals — December

Daytime high32°C / 89°F🔥 sweltering
Nighttime low23°C / 73°F
Feels like (high)37°C / 99°F
Rainfall173 mm / 6.8 in⛈ soaked
Rainy days25 days
Humidity86%💦 very humid
Dew point22°C / 72°F
Sunshine8.9 h/day
Daylight12.4 h
Wind8 km/h / 5 mph
Air quality (US AQI)74🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Brazzaville in December

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Quietschool holidays in 5 of the markets that fill it, one of its worst months for weather(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Brazzaville's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Toughest weatherBrazzaville's weather peaks June–August, best around July.

December coincides with Congo River flood season.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in Brazzaville in December

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Hazard

    Congo River flood season

    15 Nov – 31 Jan · usually

    The river runs highest at the end of the year while storms overwhelm the drains, so low-lying districts such as Talangai and Mfilou can flood and roads get cut. The winter of 2023-24 brought record high water. Source ↗

  • Festival

    Mantsina sur scene theatre festival

    5–23 Dec · usuallyArts festival

    An international theatre festival held every December since 2003, with plays, dance, readings and workshops at the Institut Francais and venues around the city. Source ↗

What's on around the world in December →

Nearby, and something's on

Within 300 km of Brazzaville — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Brazzaville?

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Brazzaville in December — FAQ

Is December a good time to visit Brazzaville?
December in Brazzaville: sweltering, soaked, with muggy air — a gamble, with 25 rainy days. It ranks #10 of 12 months for Brazzaville on SeasonMap's comfort score (59/100).
What is the weather like in Brazzaville in December?
In December, Brazzaville averages a daily high of 31.5°C and a low of 22.8°C, with about 172.6 mm of rain over roughly 24.9 rainy days.
What is the air quality in Brazzaville in December?
Brazzaville has a mean US Air Quality Index of about 74 in December.

Within 300 km: Kinshasa's Christmas and New Year around 24 Dec – 2 Jan.