Climate Insights for Nzassi

, Région du Kouilou, Republic of the Congo

Hottest
March
30°C peak
Coldest
July
20°C low
Wettest
December
245mm rain
Best to Visit
June, July, August
Mild temps & low rain

Climate Overview

The climate in Nzassi is hot. The average annual temperature is 25°C and approximately 1429mm of precipitation falls per year. December is the wettest month, receiving around 245mm of rainfall. Nzassi sits near the equator, so seasonal temperature differences are minimal throughout the year.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 29° Average: 26° Min: 24° Feb Max: 30° Average: 27° Min: 25° Mar Max: 30° Average: 27° Min: 25° Apr Max: 30° Average: 27° Min: 25° May Max: 29° Average: 26° Min: 24° Jun Max: 26° Average: 24° Min: 21° Jul Max: 25° Average: 22° Min: 20° Aug Max: 26° Average: 23° Min: 20° Sep Max: 27° Average: 24° Min: 22° Oct Max: 28° Average: 26° Min: 24° Nov Max: 29° Average: 26° Min: 24° Dec Max: 29° Average: 26° Min: 24°
Max
Average
Min

Nzassi has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is March, when average highs reach 30°C and the mean temperature sits around 27°C. July is the coolest month, with minimum temperatures around 20°C and an average of 22°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between May and June, with a 3°C shift in average temperatures.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 198mm Feb Precipitation: 178mm Mar Precipitation: 175mm Apr Precipitation: 200mm May Precipitation: 69mm Jun Precipitation: 7mm Jul Precipitation: 5mm Aug Precipitation: 7mm Sep Precipitation: 18mm Oct Precipitation: 93mm Nov Precipitation: 234mm Dec Precipitation: 245mm
Precipitation

Nzassi is a fairly wet location, receiving approximately 1429mm of precipitation annually, which averages out to around 119mm per month. The wettest month is December, averaging 245mm of rainfall. November and April also tend to see above-average precipitation. The driest month is July, with just 5mm. That's 240mm less than December, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h 5km/h 10km/h 15km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 11km/h Feb Wind Speed: 11km/h Mar Wind Speed: 12km/h Apr Wind Speed: 11km/h May Wind Speed: 12km/h Jun Wind Speed: 12km/h Jul Wind Speed: 12km/h Aug Wind Speed: 12km/h Sep Wind Speed: 14km/h Oct Wind Speed: 15km/h Nov Wind Speed: 13km/h Dec Wind Speed: 11km/h
Wind Speed

Nzassi is mildly breezy, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months.

Seasons

Winter
Dec 21
Spring
Sep 23
Summer
Dec 21
Autumn
Mar 20

89 days until Winter

It is currently autumn in Nzassi, which began on March 20, 2026. Nzassi sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in March at around 30°C, while the coldest stretch bottoms out in July near 20°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 22 to 29°C. Rainfall is heavy, totalling around 345mm across the season with a monthly average of 115mm. Winds are generally light, averaging 14km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 24 to 30°C. Rainfall is heavy, totalling around 621mm across the season with a monthly average of 207mm. Winds are generally light, averaging 11km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 24 to 30°C. Rainfall is heavy, totalling around 445mm across the season with a monthly average of 148mm. Winds are generally light, averaging 11km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 20 to 26°C. Precipitation is minimal, with only around 19mm for the entire season. Winds are generally light, averaging 12km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 26°
Feb 27°
Mar 27°
Apr 27°
May 26°
Jun 24°
Jul 22°
Aug 23°
Sep 24°
Oct 26°
Nov 26°
Dec 26°

The best time to visit Nzassi is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 9mm per month. By contrast, March can be uncomfortably hot with temperatures reaching 30°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

Monthly Climate Data

The table below shows monthly climate averages for Nzassi based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
24 °C
29 °C
11 km/h
198 mm
0 cm
Feb
25 °C
30 °C
11 km/h
178 mm
0 cm
Mar Current
25 °C
30 °C
12 km/h
175 mm
0 cm
Apr
25 °C
30 °C
11 km/h
200 mm
0 cm
May
24 °C
29 °C
12 km/h
69 mm
0 cm
Jun
21 °C
26 °C
12 km/h
7 mm
0 cm
Jul
20 °C
25 °C
12 km/h
5 mm
0 cm
Aug
20 °C
26 °C
12 km/h
7 mm
0 cm
Sep
22 °C
27 °C
14 km/h
18 mm
0 cm
Oct
24 °C
28 °C
15 km/h
93 mm
0 cm
Nov
24 °C
29 °C
13 km/h
234 mm
0 cm
Dec
24 °C
29 °C
11 km/h
245 mm
0 cm
Airpult

Get accurate weather forecasts worldwide with real-time updates and severe weather alerts. Covering 6M+ locations with precise, reliable weather data.

© 2026 Samuenti GmbH. All rights reserved.

gb English
Metric (°C, km/h)