Ntoum in Summer
In summer (June, July and August), Ntoum sees average daytime highs around 27°C and overnight lows near 23°C, with 157 mm of rain over about 30 wet days across the season. It is the coldest season of the year and the driest season of the year.
Across summer, daytime highs hold fairly steady around 27°C. The sky is clear or mostly clear about 0% of the time across summer, and the air most often feels oppressive.
Summer is Ntoum's best season of the year to visit on our travel score. Ntoum has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Ntoum's year-round climate.
- Avg daytime high
- 27°C
- coldest season of the year
- Avg overnight low
- 23°C
- Rainfall
- 157 mm
- 30 wet days
- Avg wind
- 8 km/h
- Travel score
- 5.9
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Ntoum in Summer
Across summer, daytime highs hold fairly steady around 27°C.
A typical summer day in Ntoum reaches about 27°C and drops to 23°C overnight. The warmest of the three months is June, the coolest July.
How summer really feels in Ntoum
Once humidity and wind are folded in, summer brings about 4 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.
Ntoum weather by month
How the three summer months (June, July and August) 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 | 29° / 24° | 248 | 29.6 | 12 | 2.8 |
| Feb | 30° / 24° | 240 | 26.6 | 12 | 2.7 |
| Mar | 30° / 24° | 298 | 29.7 | 12 | 2.6 |
| Apr | 30° / 24° | 270 | 27.7 | 12 | 2.7 |
| May | 30° / 24° | 230 | 27.6 | 12 | 3.0 |
| Jun | 28° / 23° | 80 | 12.8 | 12 | 5.3 |
| Jul | 27° / 22° | 35 | 7.5 | 12 | 6.4 |
| Aug | 27° / 22° | 42 | 9.3 | 12 | 6.0 |
| Sep | 28° / 23° | 162 | 23.3 | 12 | 4.0 |
| Oct | 29° / 23° | 368 | 30.4 | 12 | 2.9 |
| Nov | 29° / 23° | 388 | 29.7 | 12 | 2.8 |
| Dec | 29° / 24° | 308 | 30.3 | 12 | 2.9 |
Cloud cover in Summer
The sky is clear or mostly clear about 0% of the time across summer.
Chance of precipitation in Summer
Ntoum gets around 157 mm of rain over 30 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 8 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 hours in early June to 12 hours by late August. 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 3.4 kWh/m².
Is summer a good time to visit Ntoum?
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 reasonable time to visit Ntoum for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Ntoum in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Ntoum sees daytime highs around 27°C and nights near 23°C. Pack light clothes. Worth having: rain gear. About 30 days see rain.
Sea temperature near Ntoum in Summer
The nearest coast averages about 26°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 43 km away) is warmest in March at about 29°C and coldest in August near 25°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 29 | 29 | 29 | 29 | 28 | 27 | 26 | 25 | 26 | 27 | 28 | 28 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm | Warm | Warm | Warm | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 29 | Tropical |
| May | 28 | Tropical |
| Jun | 27 | Warm |
| Jul | 26 | Warm |
| Aug | 25 | Warm |
| Sep | 26 | Warm |
| Oct | 27 | Warm |
| Nov | 28 | Warm |
| Dec | 28 | Tropical |
UV index in Ntoum in Summer
Clear-sky midday UV across summer averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ntoum peaks around March 20 at about 13 (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) | 11 | 11 | 13 | 12 | 11 | 8 | 9 | 9 | 12 | 13 | 11 | 9 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 12 | Extreme |
| May | 11 | Extreme |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 9 | Very high |
| Sep | 12 | Extreme |
| Oct | 13 | Extreme |
| Nov | 11 | Extreme |
| Dec | 9 | Very high |
Air quality in Ntoum 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 Ntoum is worst in February — around 46 µg/m³ PM2.5 (poor), about 2.3× the cleanest month (September, 21 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) | 41 | 46 | 36 | 31 | 30 | 32 | 31 | 26 | 21 | 21 | 26 | 36 |
| Level | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 41 | Poor |
| Feb | 46 | Poor |
| Mar | 36 | Poor |
| Apr | 31 | Moderate |
| May | 30 | Moderate |
| Jun | 32 | Moderate |
| Jul | 31 | Moderate |
| Aug | 26 | Moderate |
| Sep | 21 | Moderate |
| Oct | 21 | Moderate |
| Nov | 26 | Moderate |
| Dec | 36 | Poor |
Where is Ntoum?
Ntoum sits at 0.4°N, 9.8°E, 11 m above sea level, in Gabon. The nearest listed city is Owendo, 31 km away.
Topography around Ntoum
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ntoum.
Within 3 km, the terrain around Ntoum has only modest variations in elevation — a maximum elevation change of 85 m around an average of 19 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 299 m; within 80 km, large variations in elevation — a maximum elevation change of 908 m.
The land around Ntoum is covered by trees (85%) within 3 km, trees (88%) within 16 km, and trees (66%) and water (26%) 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 Ntoum (0.3905°, 9.761°, elevation 11 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.