Port-Gentil climate — normals and trends
Port-Gentil (Gabon) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.3 °C and it receives 1,603 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 (26.9 °C on average) and the coldest is July (22.9 °C). Rainfall peaks in December.
Port-Gentil averages 0 frost days, 0 hot days (≥ 30 °C) and 210 rainy days per year.
Port-Gentil has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The hottest day of the period reached 30.3 °C (on 16 March 2024) and the coldest 17.9 °C (on 29 August 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
Port-GentilOgooué-Maritime Province
- coords
- -0.72°, 8.78°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.3°C
Average daily high
26.1°C
Average daily low
24.5°C
Annual rainfall
1,603mm
Sunshine / day
9.8h
Mean relative humidity
84%
Average peak wind
20.0km/h
Seasonal range
4.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
210 d/yr
Annual snowfall
0.0 cm
Average feels-like high
30.0 °C
Average feels-like low
27.4 °C
Average peak gust
29.3 km/h
Tropical nights (≥ 20 °C)
365 d/yr
Solar radiation
17.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °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
30.3 °C
16 March 2024
Coldest day
17.9 °C
29 August 1950
Wettest day
294 mm
17 January 2020
Windiest day
41.5 km/h
10 August 1950
Strongest gust
60.8 km/h
10 August 1950
Hottest feels-like
38.1 °C
4 April 1988
Coldest feels-like
15.0 °C
8 August 1950
Sunniest day
11.9 h
26 October 1941
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 | 27.9 °C | +0.8 °C | 176 mm | -54 mm |
| Feb | 28.5 °C | +0.9 °C | 90 mm | -90 mm |
| Mar | 28.7 °C | +0.8 °C | 244 mm | +57 mm |
| Apr | 28.4 °C | +0.6 °C | 100 mm | -63 mm |
| May | 27.3 °C | +0.5 °C | 98 mm | -11 mm |
| Jun | 26.1 °C | +1.4 °C | 20 mm | +7 mm |
| Jul | 24.3 °C | +0.7 °C | 3 mm | -2 mm |
| Aug | 23.9 °C | 0.0 °C | 4 mm | -2 mm |
| Sep | 25.2 °C | +0.3 °C | 29 mm | -4 mm |
| Oct | 26.1 °C | +0.3 °C | 46 mm | -88 mm |
| Nov | 26.7 °C | +0.3 °C | 220 mm | -44 mm |
| Dec | 27.2 °C | +0.5 °C | 394 mm | +112 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 Port-Gentil?
Port-Gentil has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.3 °C and it receives 1,603 mm of precipitation per year.
What is the hottest day ever recorded in Port-Gentil?
The hottest day measured in Port-Gentil between 1940 and 2025 was 16 March 2024, reaching 30.3 °C.
What is the coldest day in Port-Gentil?
The coldest day measured in Port-Gentil between 1940 and 2025 was 29 August 1950, at 17.9 °C.
Does it snow in Port-Gentil?
Almost never: Port-Gentil sees virtually no snow, with about 0 frost days per year.
Has the climate of Port-Gentil warmed?
Yes: Port-Gentil warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Port-Gentil?
The wettest day measured in Port-Gentil between 1940 and 2025 was 17 January 2020, with 294 mm of rain in 24 hours.
What was the windiest day in Port-Gentil?
The windiest day measured in Port-Gentil between 1940 and 2025 was 10 August 1950, with winds reaching 41.5 km/h.
What is the warmest month in Port-Gentil?
The warmest month in Port-Gentil is March (26.9 °C on average); the coldest is July (22.9 °C).
How much does it rain in Port-Gentil?
Port-Gentil receives on average 1,603 mm of precipitation per year, spread over about 210 rainy days.
Is it sunny in Port-Gentil?
Port-Gentil gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.
Are there tropical nights in Port-Gentil?
Yes: Port-Gentil has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Port-Gentil?
In Port-Gentil, between 1940 and 2025, the highest apparent temperature reached 38.1 °C on 4 April 1988, and the lowest was 15.0 °C on 8 August 1950.
Compare Port-Gentil with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Port-Gentil