Port-Gentil in Summer
In summer (December, January and February), Port-Gentil sees average daytime highs around 27°C and overnight lows near 25°C, with 660 mm of rain over about 79 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 27°C. The sky is clear or mostly clear about 5% of the time across summer, and the air most often feels oppressive.
Summer is Port-Gentil's weakest season of the year to visit on our travel score. Port-Gentil 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 Port-Gentil's year-round climate.
- Avg daytime high
- 27°C
- 2nd-warmest season
- Avg overnight low
- 25°C
- Rainfall
- 660 mm
- 79 wet days
- Avg wind
- 11 km/h
- Travel score
- 3.8
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Port-Gentil in Summer
Across summer, daytime highs hold fairly steady around 27°C.
A typical summer day in Port-Gentil reaches about 27°C and drops to 25°C overnight. The warmest of the three months is February, the coolest December.
How summer really feels in Port-Gentil
Once humidity and wind are folded in, summer brings about 5 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.
Port-Gentil 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 | 27° / 25° | 230 | 27.4 | 12 | 3.8 |
| Feb | 28° / 26° | 169 | 22.7 | 12 | 3.9 |
| Mar | 28° / 26° | 176 | 24 | 12 | 3.8 |
| Apr | 28° / 26° | 161 | 22 | 12 | 4.1 |
| May | 27° / 25° | 110 | 17.3 | 12 | 5.3 |
| Jun | 25° / 24° | 18 | 3.8 | 12 | 7.6 |
| Jul | 24° / 23° | 8 | 2.2 | 12 | 8.1 |
| Aug | 24° / 23° | 7 | 2.2 | 12 | 8.0 |
| Sep | 25° / 24° | 34 | 8.6 | 12 | 6.7 |
| Oct | 26° / 25° | 147 | 23.2 | 12 | 4.5 |
| Nov | 27° / 25° | 275 | 28 | 12 | 3.6 |
| Dec | 27° / 25° | 262 | 28.4 | 12 | 3.7 |
Cloud cover in Summer
The sky is clear or mostly clear about 5% of the time across summer.
Chance of precipitation in Summer
Port-Gentil gets around 660 mm of rain over 79 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 11 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 hours 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 4.8 kWh/m².
Hazard calendar for Port-Gentil
In summer, Port-Gentil overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Port-Gentil's rainy season runs October–April, when most of the year's rain falls.
Is summer a good time to visit Port-Gentil?
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 Port-Gentil.
What to pack for Port-Gentil in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Port-Gentil sees daytime highs around 27°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 79 days see rain.
Sea temperature near Port-Gentil in Summer
The nearest coast averages about 28°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 15 km away) is warmest in March at about 29°C and coldest in July 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) | 28 | 29 | 29 | 29 | 28 | 26 | 25 | 25 | 26 | 27 | 27 | 28 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 29 | Tropical |
| May | 28 | Warm |
| Jun | 26 | Warm |
| Jul | 25 | Warm |
| Aug | 25 | Warm |
| Sep | 26 | Warm |
| Oct | 27 | Warm |
| Nov | 27 | Warm |
| Dec | 28 | Warm |
UV index in Port-Gentil 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 Port-Gentil peaks around March 20 at about 14 (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) | 12 | 12 | 14 | 13 | 11 | 8 | 9 | 9 | 12 | 12 | 11 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 12 | Extreme |
| Mar | 14 | Extreme |
| Apr | 13 | Extreme |
| May | 11 | Extreme |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 9 | Very high |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 11 | Extreme |
| Dec | 10 | Extreme |
Air quality in Port-Gentil 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 Port-Gentil is worst in February — around 25 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (October, 8 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) | 22 | 25 | 18 | 14 | 16 | 21 | 21 | 18 | 11 | 8 | 11 | 17 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 22 | Moderate |
| Feb | 25 | Moderate |
| Mar | 18 | Moderate |
| Apr | 14 | Moderate |
| May | 16 | Moderate |
| Jun | 21 | Moderate |
| Jul | 21 | Moderate |
| Aug | 18 | Moderate |
| Sep | 11 | Good |
| Oct | 8 | Good |
| Nov | 11 | Good |
| Dec | 17 | Moderate |
Where is Port-Gentil?
Port-Gentil sits at 0.7°S, 8.8°E, 4 m above sea level, in Gabon. The nearest listed city is Owendo, 138 km away.
Topography around Port-Gentil
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Port-Gentil.
Within 3 km, the terrain around Port-Gentil has only modest variations in elevation — a maximum elevation change of 9 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 41 m; within 80 km, only modest variations in elevation — a maximum elevation change of 236 m.
The land around Port-Gentil is covered by artificial surfaces (50%) and water (38%) within 3 km, water (77%) within 16 km, and water (60%) and trees (28%) 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 Port-Gentil (-0.7193°, 8.7815°, elevation 4 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.