Koulamoutou climate — normals and trends
Koulamoutou (Gabon) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.3 °C and it receives 1,496 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is March (24.9 °C on average) and the coldest is July (23.4 °C). Rainfall peaks in November.
Koulamoutou averages 0 frost days, 121 hot days (≥ 30 °C) and 245 rainy days per year.
Koulamoutou has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.9 °C (on 30 March 2007) and the coldest 12.4 °C (on 17 July 1950).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
KoulamoutouOgooué-Lol Province
- coords
- -1.14°, 12.46°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.3°C
Average daily high
29.1°C
Average daily low
21.0°C
Annual rainfall
1,496mm
Sunshine / day
9.6h
Mean relative humidity
82%
Average peak wind
8.0km/h
Seasonal range
1.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
121 d/yr
Rainy days (≥ 1 mm)
245 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.8 °C
Average feels-like low
24.1 °C
Average peak gust
23.3 km/h
Tropical nights (≥ 20 °C)
320 d/yr
Solar radiation
16.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.68 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
36.9 °C
30 March 2007
Coldest day
12.4 °C
17 July 1950
Wettest day
141 mm
2 December 1949
Windiest day
19.2 km/h
17 September 1950
Strongest gust
48.6 km/h
17 September 1950
Hottest feels-like
43.1 °C
8 March 2005
Coldest feels-like
10.5 °C
17 July 1950
Sunniest day
12.0 h
21 September 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 30.8 °C | +1.1 °C | 123 mm | -30 mm |
| Feb | 31.3 °C | +1.2 °C | 84 mm | -66 mm |
| Mar | 31.3 °C | +1.1 °C | 178 mm | +6 mm |
| Apr | 31.3 °C | +1.2 °C | 116 mm | -29 mm |
| May | 30.0 °C | +0.8 °C | 163 mm | +32 mm |
| Jun | 29.7 °C | +1.5 °C | 40 mm | -7 mm |
| Jul | 27.6 °C | -0.2 °C | 18 mm | -5 mm |
| Aug | 28.6 °C | +0.1 °C | 6 mm | -26 mm |
| Sep | 30.2 °C | +1.1 °C | 63 mm | -26 mm |
| Oct | 30.1 °C | +1.3 °C | 195 mm | +13 mm |
| Nov | 29.6 °C | +1.0 °C | 254 mm | +61 mm |
| Dec | 30.2 °C | +1.2 °C | 159 mm | -20 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Koulamoutou?
Koulamoutou has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.3 °C and it receives 1,496 mm of precipitation per year.
What is the hottest day ever recorded in Koulamoutou?
The hottest day measured in Koulamoutou between 1940 and 2025 was 30 March 2007, reaching 36.9 °C.
What is the coldest day in Koulamoutou?
The coldest day measured in Koulamoutou between 1940 and 2025 was 17 July 1950, at 12.4 °C.
Does it snow in Koulamoutou?
Almost never: Koulamoutou sees virtually no snow, with about 0 frost days per year.
Has the climate of Koulamoutou warmed?
Yes: Koulamoutou warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Koulamoutou?
The wettest day measured in Koulamoutou between 1940 and 2025 was 2 December 1949, with 141 mm of rain in 24 hours.
What was the windiest day in Koulamoutou?
The windiest day measured in Koulamoutou between 1940 and 2025 was 17 September 1950, with winds reaching 19.2 km/h.
What is the warmest month in Koulamoutou?
The warmest month in Koulamoutou is March (24.9 °C on average); the coldest is July (23.4 °C).
How much does it rain in Koulamoutou?
Koulamoutou receives on average 1,496 mm of precipitation per year, spread over about 245 rainy days.
Is it sunny in Koulamoutou?
Koulamoutou gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
Are there tropical nights in Koulamoutou?
Yes: Koulamoutou has on average 320 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Koulamoutou?
In Koulamoutou, between 1940 and 2025, the highest apparent temperature reached 43.1 °C on 8 March 2005, and the lowest was 10.5 °C on 17 July 1950.
Compare Koulamoutou with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Koulamoutou