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
19402025 · 86 yrs
AwTropical savannaWarmest monthMarchColdest monthJulyWettest monthDecemberDriest monthJuly

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

1940Each stripe is one year, from 1940 (left) to 2025 (right). Blue = colder than the period average, red = warmer.2025

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

YearHottest dayColdest dayAnnual meanRainfallHot daysFrost days
202529.5 °C10 March 202521.3 °C9 August 202526.0 °C1,423 mm00
202430.3 °C16 March 202422.5 °C14 July 202426.5 °C1,566 mm40
202329.1 °C3 March 202321.8 °C9 July 202326.0 °C1,842 mm00
202229.2 °C7 March 202222.1 °C27 June 202225.8 °C1,879 mm00
202129.3 °C14 April 202123.4 °C23 July 202126.2 °C1,597 mm00
202029.9 °C27 March 202022.9 °C18 June 202026.2 °C2,004 mm00
201929.3 °C1 April 201922.7 °C8 July 201926.1 °C1,624 mm00
201828.9 °C29 March 201822.5 °C25 July 201825.9 °C1,840 mm00
201729.1 °C18 April 201721.5 °C20 July 201725.7 °C1,507 mm00
201629.4 °C8 March 201622.9 °C31 July 201626.0 °C1,534 mm00
201529.2 °C20 April 201521.1 °C1 July 201525.4 °C1,687 mm00
201429.0 °C17 April 201420.8 °C18 July 201425.4 °C1,527 mm00
201329.2 °C21 February 201321.3 °C22 July 201325.5 °C1,353 mm00
201228.9 °C15 March 201222.2 °C29 June 201225.7 °C1,704 mm00
201128.9 °C21 February 201121.5 °C25 July 201125.4 °C1,553 mm00
201029.8 °C8 March 201021.8 °C15 July 201025.6 °C1,105 mm00
200928.9 °C6 April 200921.6 °C18 July 200925.6 °C1,743 mm00
200829.1 °C4 March 200821.9 °C24 June 200825.5 °C1,793 mm00
200729.5 °C6 April 200722.9 °C6 July 200725.9 °C2,156 mm00
200629.4 °C5 April 200621.6 °C4 August 200625.6 °C1,655 mm00
200529.5 °C24 February 200520.8 °C29 June 200525.4 °C1,093 mm00
200428.9 °C17 February 200422.5 °C22 July 200425.6 °C1,301 mm00
200329.5 °C4 February 200322.7 °C11 June 200326.0 °C1,796 mm00
200229.3 °C13 April 200222.2 °C19 July 200225.7 °C1,701 mm00
200129.3 °C9 April 200120.7 °C22 July 200125.3 °C1,406 mm00
200028.8 °C24 March 200022.5 °C15 July 200025.5 °C1,588 mm00
199929.0 °C23 March 199922.4 °C2 July 199925.6 °C1,611 mm00
199829.9 °C4 February 199823.4 °C27 July 199826.3 °C1,378 mm00
199728.9 °C9 April 199721.9 °C26 June 199725.5 °C1,560 mm00
199629.3 °C25 March 199621.0 °C18 July 199625.4 °C1,737 mm00
199529.6 °C31 March 199522.0 °C8 July 199525.7 °C1,535 mm00
199428.7 °C24 March 199421.6 °C21 July 199425.4 °C1,278 mm00
199328.6 °C1 March 199322.3 °C29 August 199325.5 °C1,362 mm00
199228.6 °C25 February 199221.0 °C25 July 199225.1 °C1,552 mm00
199129.3 °C20 February 199121.8 °C28 June 199125.5 °C1,855 mm00
199029.2 °C31 March 199021.1 °C11 July 199025.4 °C1,280 mm00
198928.9 °C8 April 198921.4 °C23 July 198925.5 °C2,025 mm00
198829.3 °C4 April 198822.6 °C31 July 198825.9 °C1,849 mm00
198729.1 °C26 February 198722.4 °C6 August 198725.7 °C1,700 mm00
198629.1 °C8 April 198622.0 °C8 July 198625.3 °C1,508 mm00
198528.6 °C29 March 198521.6 °C15 July 198525.3 °C1,380 mm00
198428.6 °C18 March 198422.7 °C21 July 198425.7 °C1,662 mm00
198329.3 °C21 March 198321.4 °C5 July 198325.2 °C1,062 mm00
198228.5 °C8 March 198220.9 °C3 July 198224.8 °C1,479 mm00
198128.9 °C15 April 198121.3 °C5 August 198125.2 °C2,109 mm00
198028.8 °C14 March 198021.3 °C30 July 198024.9 °C1,931 mm00
197928.7 °C14 April 197921.3 °C25 July 197925.1 °C1,281 mm00
197828.0 °C9 February 197820.9 °C4 July 197824.9 °C1,672 mm00
197729.0 °C15 April 197721.4 °C16 July 197725.1 °C1,993 mm00
197628.3 °C23 March 197620.8 °C10 July 197624.6 °C1,949 mm00
197528.7 °C24 March 197520.7 °C27 July 197524.9 °C2,357 mm00
197428.5 °C10 April 197421.5 °C6 July 197425.1 °C2,172 mm00
197329.2 °C4 February 197322.1 °C26 July 197325.5 °C2,093 mm00
197228.7 °C12 March 197221.1 °C12 July 197225.1 °C1,535 mm00
197128.5 °C17 April 197121.3 °C22 July 197125.0 °C1,491 mm00
197028.8 °C1 April 197021.2 °C5 July 197025.1 °C1,267 mm00
196928.9 °C9 March 196920.9 °C20 July 196925.1 °C1,144 mm00
196828.4 °C4 April 196821.3 °C31 July 196825.1 °C1,624 mm00
196728.5 °C8 March 196721.7 °C18 July 196725.1 °C2,416 mm00
196629.1 °C5 May 196622.3 °C22 July 196625.4 °C2,109 mm00
196528.6 °C12 April 196521.1 °C9 July 196525.0 °C1,776 mm00
196428.8 °C8 March 196421.4 °C17 August 196425.1 °C1,677 mm00
196328.7 °C23 March 196322.0 °C14 July 196325.5 °C1,985 mm00
196228.3 °C13 April 196221.1 °C25 July 196225.0 °C1,603 mm00
196128.7 °C21 March 196120.3 °C31 July 196125.0 °C2,152 mm00
196028.3 °C30 March 196021.6 °C16 July 196025.1 °C1,767 mm00
195929.0 °C13 March 195921.8 °C23 June 195925.2 °C1,546 mm00
195828.9 °C12 February 195820.3 °C19 July 195824.7 °C1,144 mm00
195727.1 °C13 February 195720.8 °C10 August 195724.5 °C874 mm00
195628.3 °C29 March 195621.3 °C11 July 195624.7 °C1,204 mm00
195528.1 °C1 April 195521.2 °C7 August 195524.9 °C1,339 mm00
195428.4 °C2 March 195419.9 °C31 July 195424.5 °C1,327 mm00
195328.3 °C2 April 195320.7 °C9 August 195324.7 °C1,082 mm00
195228.7 °C28 March 195221.3 °C6 August 195225.0 °C1,534 mm00
195128.8 °C28 March 195121.0 °C17 July 195125.0 °C1,747 mm00
195029.2 °C8 April 195017.9 °C29 August 195025.0 °C1,685 mm00
194928.9 °C9 March 194921.7 °C17 July 194925.2 °C1,444 mm00
194828.5 °C25 February 194821.2 °C22 July 194824.8 °C1,835 mm00
194728.2 °C21 February 194721.0 °C20 July 194724.8 °C1,188 mm00
194629.1 °C21 February 194620.0 °C11 July 194624.9 °C1,434 mm00
194529.4 °C17 April 194521.1 °C7 July 194525.0 °C1,781 mm00
194428.4 °C13 February 194420.9 °C1 August 194424.9 °C1,273 mm00
194328.2 °C28 February 194319.7 °C23 July 194324.5 °C1,524 mm00
194228.5 °C6 April 194220.6 °C16 July 194224.9 °C1,575 mm00
194128.3 °C7 March 194121.4 °C2 August 194124.9 °C1,126 mm00
194028.4 °C27 March 194020.8 °C19 June 194024.7 °C1,327 mm00

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

Average daily high
26.7 °C
+0.6 °C
Hot days (≥ 30 °C)
0 d/yr
0
Frost days (< 0 °C)
0 d/yr
0
Annual rainfall
1423 mm
-180 mm

Month by month

Highvs. normalPrecipitationvs. normal
Jan27.9 °C+0.8 °C176 mm-54 mm
Feb28.5 °C+0.9 °C90 mm-90 mm
Mar28.7 °C+0.8 °C244 mm+57 mm
Apr28.4 °C+0.6 °C100 mm-63 mm
May27.3 °C+0.5 °C98 mm-11 mm
Jun26.1 °C+1.4 °C20 mm+7 mm
Jul24.3 °C+0.7 °C3 mm-2 mm
Aug23.9 °C0.0 °C4 mm-2 mm
Sep25.2 °C+0.3 °C29 mm-4 mm
Oct26.1 °C+0.3 °C46 mm-88 mm
Nov26.7 °C+0.3 °C220 mm-44 mm
Dec27.2 °C+0.5 °C394 mm+112 mm

The year's extremes

Hottest day
29.5 °C
10 Mar 2025
Coldest day
21.3 °C
9 Aug 2025
Wettest day
214.6 mm
21 Dec 2025
Windiest day
32.3 km/h
19 Oct 2025
Strongest gust
49.0 km/h
13 Mar 2025
Hottest feels-like
37.2 °C
10 Mar 2025
Coldest feels-like
21.7 °C
8 Aug 2025
Sunniest day
11.9 h
22 Oct 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

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

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Nearby cities

The climate around Port-Gentil

Other cities — Gabon