Koulamoutou in Summer
In summer (December, January and February), Koulamoutou sees average daytime highs around 30°C and overnight lows near 22°C, with 437 mm of rain over about 67 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Across summer, daytime highs hold fairly steady around 30°C. The sky is clear or mostly clear about 4% of the time across summer, and the air most often feels oppressive.
Summer is Koulamoutou's 3rd-best season to visit on our travel score. For the whole year in context, see Koulamoutou's year-round climate.
- Avg daytime high
- 30°C
- 2nd-warmest season
- Avg overnight low
- 22°C
- Rainfall
- 437 mm
- 67 wet days
- Avg wind
- 4 km/h
- Travel score
- 3.3
- 3rd-best season
- Months
- Dec · Jan · Feb
Temperature in Koulamoutou in Summer
Across summer, daytime highs hold fairly steady around 30°C.
A typical summer day in Koulamoutou reaches about 30°C and drops to 22°C overnight. The warmest of the three months is February, the coolest December.
How summer really feels in Koulamoutou
Once humidity and wind are folded in, summer brings about 90 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Koulamoutou weather by month
How the three summer months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 22° | 132 | 21.8 | 12.1 | 3.4 |
| Feb | 31° / 22° | 142 | 20.5 | 12 | 3.1 |
| Mar | 31° / 22° | 159 | 23.8 | 12 | 2.9 |
| Apr | 31° / 22° | 141 | 23.9 | 12 | 3.0 |
| May | 30° / 22° | 120 | 22.8 | 11.9 | 3.5 |
| Jun | 28° / 21° | 44 | 12.4 | 11.9 | 5.4 |
| Jul | 28° / 21° | 28 | 8.1 | 11.9 | 6.4 |
| Aug | 28° / 21° | 38 | 10.3 | 12 | 5.6 |
| Sep | 29° / 22° | 91 | 20.1 | 12 | 3.9 |
| Oct | 29° / 22° | 186 | 27.1 | 12 | 3.2 |
| Nov | 29° / 21° | 180 | 26.4 | 12.1 | 3.1 |
| Dec | 30° / 22° | 164 | 25 | 12.1 | 3.3 |
Cloud cover in Summer
The sky is clear or mostly clear about 4% of the time across summer.
Chance of precipitation in Summer
Koulamoutou gets around 437 mm of rain over 67 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 4 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 06 min in early December to 12 hours by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.0 kWh/m².
Is summer a good time to visit Koulamoutou?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Koulamoutou.
What to pack for Koulamoutou in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Koulamoutou sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 67 days see rain.
UV index in Koulamoutou in Summer
Clear-sky midday UV across summer averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Koulamoutou peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 8 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 12 | 15 | 13 | 11 | 8 | 9 | 10 | 12 | 14 | 12 | 9 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 12 | Extreme |
| Mar | 15 | Extreme |
| Apr | 13 | Extreme |
| May | 11 | Extreme |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 10 | Very high |
| Sep | 12 | Extreme |
| Oct | 14 | Extreme |
| Nov | 12 | Extreme |
| Dec | 9 | Very high |
Air quality in Koulamoutou in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Koulamoutou is worst in July — around 25 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (October, 9 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 21 | 25 | 15 | 13 | 17 | 25 | 25 | 22 | 14 | 9 | 11 | 18 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 21 | Moderate |
| Feb | 25 | Moderate |
| Mar | 15 | Moderate |
| Apr | 13 | Moderate |
| May | 17 | Moderate |
| Jun | 25 | Moderate |
| Jul | 25 | Moderate |
| Aug | 22 | Moderate |
| Sep | 14 | Moderate |
| Oct | 9 | Good |
| Nov | 11 | Good |
| Dec | 18 | Moderate |
Where is Koulamoutou?
Koulamoutou sits at 1.1°S, 12.5°E, 282 m above sea level, in Gabon. The nearest listed city is Moanda, 95 km away.
Topography around Koulamoutou
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Koulamoutou.
Within 3 km, the terrain around Koulamoutou has only modest variations in elevation — a maximum elevation change of 109 m around an average of 296 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 421 m; within 80 km, large variations in elevation — a maximum elevation change of 813 m.
The land around Koulamoutou is covered by trees (88%) within 3 km, trees (99%) within 16 km, and trees (100%) within 80 km.
Gabon travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / E
- 220 V · 50 Hz
- Prices
- ≈ 37% of US
- price level, 2025
- GDP per capita
- $8,263
- 2025
- Happiness
- 5.2 / 10
- World Happiness, 2025
- Road deaths
- 23.9
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Koulamoutou (-1.1367°, 12.464°, elevation 282 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.