Index


Introduction



In the Republic of Congo, an African country crossed by the Equator, the climate is equatorial (hot and humid all year round, with no real dry season) in the north, and tropical (hot and humid, with a dry and cooler season in winter) in the center and south.
In the north, the temperatures are high throughout the year, and the air is muggy, even though the altitude of a few hundred meters makes it a little more bearable than if it was at sea level. In the center-south, the temperature decreases from June to September, especially along the coast, where it becomes a bit cool during the day, and on the hills of the Plateaux Department, when it becomes a bit cool at night.
The amount of rainfall ranges from 1,500 to 2,000 millimeters (60 to 79 inches) per year in the north, while in the south it drops below 1,500 mm (60 in), and reaches a low of 1,200 mm (47 in) on the coast. In the center and south, the dry season, which corresponds to the winter of the southern hemisphere, runs from June to August in the center, from June to September in the south (see Brazzaville), and from mid-May to mid-October on the coast (see Pointe-Noire).
The amount of sunshine is not excellent throughout Congo, and it does not get better in the austral winter, even in the center-south where it is the dry season. On the other hand, in the period from October to April, between one rain shower and another, the sun comes out.

The north



In the north (see Ouésso, Impfondo), temperatures are stable during the year, however, they slightly decrease in July and August.

Ouésso

Here are the average temperatures of Ouésso, located in the north, at 350 meters (1,150 ft) of altitude.
Ouesso - Average temperatures
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Min (°C)202021212121212121212120
Max (°C)313232323130292930303030
Min (°F)686870707070707070707068
Max (°F)889090908886848486868686

Although, as mentioned, there is no real dry season in the north, there are two rainier periods due to the zenith passages of the sun (that is, when it shines directly overhead in the sky at mid-day) and two relatively dry periods, that is, December to February and June to August. In addition, the more you go to the north, the more evident is the first dry period (the one that goes from December to February) because we are moving away from the equator and entering the area where the rainfall regime is typical of the Northern Hemisphere (ie with a dry winter). The result is that the rainfall in the north is better distributed, so the area is covered by forest, while the central and southern areas are covered by savanna.
Here is the average precipitation in Ouesso.
Ouesso - Average precipitation
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Prec.(mm)558015013015011580155220220150851590
Prec.(in)2.23.15.95.15.94.53.16.18.78.75.93.362.6
Days45981196101314116106

In the north, the sun does not shine very often. However, it can be seen a little more often in the hotter period, from January to May, and less often in the cooler period, in July and August.
Ouesso - Sunshine
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Hours565665444555

Center-south



Pointe-Noire

As mentioned, in the center-south, and especially on the coast, the temperature decreases from June to September. This happens because of a cool sea current that arrives in winter, the Benguela Current.
Here are the average temperatures of Pointe-Noire, located on the coast.
Pointe Noire - Average temperatures
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Min (°C)242424242320181921232324
Max (°C)303031302927252526282929
Min (°F)757575757368646670737375
Max (°F)868688868481777779828484

On the coast, there is a clear dry season due to the Benguela Current, which almost completely inhibits rain cloud formation. Here is the average precipitation in Pointe-Noire.
Pointe Noire - Average precipitation
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Prec.(mm)1502102251809010213701651451251
Prec.(in)5.98.38.97.13.5000.10.52.86.55.749.3
Days10101211500141012984

On the coast, the sun does not shine often even in the dry season, since the Benguela Current generates fogs and low clouds, which reduce sunshine. Here are the sunshine hours at Pointe-Noire.
Pointe Noire - Sunshine
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Hours555544442345

The sea is warm enough for swimming from October to May, while it gets a little cool, but remains after all acceptable, in July and August, when it drops to 22 °C (72 °F).
Pointe Noire - Sea temperature
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Temp (°C)272829282624222224262727
Temp (°F)818284827975727275798181

Brazzaville

In the capital, Brazzaville, which is situated at 320 meters (1,050 feet) above sea level, in the south-east, along the Congo River, which gives its name to the country, daytime temperatures are about 30 °C (86 °F) from September to January, they go up to 31/32 °C (88/90 °F) from February to April, and then they drop to around 27/28 °C (81/82 °F) from June to August. At night, it can be cool from June to August, while during the day it can be very hot for most of the year, but especially from mid-August to October, i.e. at the end of the dry season and before the rains begin. Here are the average temperatures.
Brazzaville - Average temperatures
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Min (°C)212122222118171820212121
Max (°C)303131323028272830303029
Min (°F)707072727064636468707070
Max (°F)868888908682818286868684

In Brazzaville too, the sun does not shine very often, also, there is no big difference between the different periods of the year.
Brazzaville - Sunshine
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Hours455544454454

In Brazzaville, rainfall amounts to 1,350 mm (53 in) per year, with two maxima in April and November, while it hardly ever rains from June to September. Here is the average precipitation.
Brazzaville - Average precipitation
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Prec.(mm)12012518521013521231402251951343
Prec.(in)4.74.97.38.35.30.100.10.15.58.97.752.9
Days981013800039131285

North of Brazzaville, on the Koukouya Plateau, it rains more than in the capital, around 1,800/2,000 mm (70/80 in) per year, with two maxima in March-April and October-November.

Congo, elephants

Best Time



The best time to visit the Republic of Congo runs from June to August, since it is the coolest and the driest, except in the north, where it rains even during this period. However, even though it's not too hot, moisture is high and the sky is cloudy even in the center and south, where it's the dry season. Remember that nights can be cool on the plateau, and on the coast the weather can get a little cool as well, at least for a beach holiday, also because of the lack of sunshine.
In August, at the end of the dry season, the animals of the savanna gather in the few remaining waterholes or along the rivers, so they are easier to spot.

What to pack



All year round, bring light clothes of natural fibers, a light sweatshirt for the evening, an umbrella or a light raincoat for showers during the rainy season. From June to September, you can add a sweatshirt or sweater and a light jacket, especially in the south and along the coast.

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