January weather forecast
Brazzaville, Congo

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Beautiful orange flower petals in front of the National Library in Brazzaville, Congo
Beautiful orange flower petals in front of the National Library in Brazzaville, Congo

Weather in January

Kicking off the year, January in Brazzaville, Congo presents warm conditions, noticeable by the substantial heat. This period also experiences high levels of humidity, creating a relatively sticky environment. January brings the city abundant rainfall amounting to 110mm (4.33") over approximately 27 days during the month. The weather rarely sees cloud-free days, which occur only in the range of two days in a month. Additionally, wind speeds remain relatively low, maintaining still and heavy air.

Temperature

The advent of January in Brazzaville denotes an average high-temperature of a hot 30.7°C (87.3°F), subtly different from December's 29.8°C (85.6°F). Brazzaville records an average nighttime low of 21.8°C (71.2°F) in January.

Heat index

During January, the heat index is evaluated at a blistering 40°C (104°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

In Brazzaville, the average relative humidity in January is 80%.

Rainfall

In Brazzaville, Congo, in January, it is raining for 27.3 days, with typically 110mm (4.33") of accumulated precipitation. Throughout the year, in Brazzaville, there are 243.1 rainfall days, and 1109mm (43.66") of precipitation is accumulated.

Daylight

In Brazzaville, the average length of the day in January is 12h and 20min.
On the first day of the month, sunrise is at 05:51 and sunset at 18:13. On the last day of January, in Brazzaville, sunrise is at 06:03 and sunset at 18:21 WAT.

Sunshine

In Brazzaville, the average sunshine in January is 9.4h.

UV index

January, March through May, July through September, with an average maximum UV index of 7, are months with the highest UV index in Brazzaville, Congo. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index, 7 during January, leads to the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

Is it hot in Brazzaville during January?

The high-temperature, in January, in Brazzaville, records 30.7°C (87.3°F), while the low-temperature is 21.8°C (71.2°F). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in January is evaluated at 40°C (104°F).

What is the average humidity in January in Brazzaville?

In January, the average relative humidity in Brazzaville, Congo, is 80%.

How much does it rain in Brazzaville in January?

In Brazzaville, in January, during 27.3 rainfall days, 110mm (4.33") of precipitation is typically accumulated.

How many hours of daylight does Brazzaville have in January?

The average day length in January is 12h and 20min.

When is the sunrise / sunset in January in Brazzaville?

On the first day of January in Brazzaville, sunrise is at 05:51 and sunset at 18:13. On the last day of the month, sunrise is at 06:03 and sunset at 18:21 WAT.

How many hours of sunshine does Brazzaville have in January?

In Brazzaville, Congo, the average sunshine duration in January is 9.4h.

When is the highest UV index in Brazzaville?

January, March through May, July through September, with an average maximum UV index of 7, are months with the highest UV index in Brazzaville.

What is the UV index reading in January in Brazzaville?

In Brazzaville, Congo, the average daily maximum UV index in January is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Brazzaville, Congo

Average temperature in January - Brazzaville, Congo
  • Average high temperature in January: 30.7°C

The warmest month (with the highest average high temperature) is August (33.1°C).
The month with the lowest average high temperature is November (29.5°C).

  • Average low temperature in January: 21.8°C

The month with the highest average low temperature is September (22.9°C).
The coldest months (with the lowest average low temperature) are June and July (20.8°C).

Average pressure in January
Brazzaville, Congo

Average pressure in January - Brazzaville, Congo
  • Average pressure in January: 1011.1mbar

The month with the highest atmospheric pressure is June (1013.1mbar).
The month with the lowest atmospheric pressure is February (1010.3mbar).

Average wind speed in January
Brazzaville, Congo

Average wind speed in January - Brazzaville, Congo
  • Average wind speed in January: 5.3km/h

The windiest month (with the highest average wind speed) is August (8.6km/h).
The calmest months (with the lowest average wind speed) are April and December (4.7km/h).

Average humidity in January
Brazzaville, Congo

Average humidity in January - Brazzaville, Congo
  • Average humidity in January: 80%

The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is August (55%).

Average rainfall in January
Brazzaville, Congo

Average rainfall in January - Brazzaville, Congo
  • Average rainfall in January: 110mm

The wettest month (with the highest rainfall) is November (173mm).
The driest month (with the least rainfall) is July (2mm).

Average rainfall days in January
Brazzaville, Congo

Average rainfall days in January - Brazzaville, Congo
  • Average rainfall days in January: 27.3 days

The month with the highest number of rainy days is December (29 days).
The month with the least rainy days is July (2.9 days).

Average daylight in January /
Average sunshine in January
Brazzaville, Congo

Average daylight in January / Average sunshine in January - Brazzaville, Congo
  • Average daylight in January: 12h and 2min

The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 54min).

  • Average sunshine in January: 9h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 30min).
The months with the least sunshine are June, October and November (Average sunshine: 7h and 0min).

Average sunshine days in January
Brazzaville, Congo

Average sunshine days in January - Brazzaville, Congo
  • Average sunshine days in January: 2.6 days

The month with the most sunshine days is July (27.4 days).
The month with the least sunshine days is December (1.3 days).

Average UV index in January
Brazzaville, Congo

Average UV index in January - Brazzaville, Congo
  • Average UV index in January: 7

The months with the highest UV index are January, March, April, May, July, August and September (UV index 7).
The months with the lowest UV index are February, June, October, November and December (UV index 6).

Average cloud cover in January
Brazzaville, Congo

Average cloud cover in January - Brazzaville, Congo
  • Average cloud cover in January: 43

The month with the most cloud cover is November (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 19).

Average visibility in January
Brazzaville, Congo

Average visibility in January - Brazzaville, Congo
  • Average visibility in January: 8km

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, March, April, November and December (8km).

Brazzaville, Congo

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