Port-Gentil climate
Port-Gentil (Gabon) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 26 °C79 °F, and about 2,017 mm79 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Port-Gentil climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2781 | 2780 | 2781 | 2048.0 |
| Feb | 2882 | 2781 | 2781 | 2048.0 |
| Mar | 2883 | 2781 | 2882 | 28111 |
| Apr | 2882 | 2781 | 2882 | 25810 |
| May | 2781 | 2679 | 2780 | 1726.8 |
| Jun | 2577 | 2476 | 2576 | 200.8 |
| Jul | 2476 | 2374 | 2475 | 30.1 |
| Aug | 2576 | 2475 | 2476 | 70.3 |
| Sep | 2678 | 2577 | 2577 | 542.1 |
| Oct | 2679 | 2678 | 2679 | 26310 |
| Nov | 2780 | 2679 | 2679 | 34113 |
| Dec | 2781 | 2679 | 2780 | 2108.3 |
| Year | 2883 | 2374 | 2679 | 2,01779 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 85% | 78% | 4.5 | 12:09 |
| Feb | 84% | 81% | 4.6 | 12:08 |
| Mar | 83% | 83% | 4.8 | 12:07 |
| Apr | 84% | 82% | 4.6 | 12:06 |
| May | 87% | 76% | 4.4 | 12:05 |
| Jun | 86% | 68% | 4.2 | 12:05 |
| Jul | 86% | 71% | 4.1 | 12:05 |
| Aug | 84% | 75% | 4.1 | 12:05 |
| Sep | 85% | 75% | 4.5 | 12:06 |
| Oct | 86% | 80% | 4.6 | 12:08 |
| Nov | 87% | 81% | 4.2 | 12:09 |
| Dec | 86% | 79% | 4.3 | 12:10 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Port-Gentil is like
The warmest month is March, with an average high of 28 °C83 °F and a low of 27 °C81 °F. The coldest is July, when highs average 24 °C76 °F and lows 23 °C74 °F. Seasonal differences are small — just 4.1 °C7.4 °F between the warmest and the coolest month.
It is very wet, receiving about 2,017 mm79 in of precipitation per year. The wettest three-month stretch is October–December, which brings 40% of the annual total. Months with less than 20 mm0.8 in on average: June–August. The wettest month is November (341 mm13 in), the driest is July (3 mm0.1 in).
Relative humidity ranges from 83% in March to 87% in November. The clearest skies (lowest average cloud amount, 68%) are typical of June. Average wind speed near the ground ranges from 12 km/h (8 mph) in April to 16 km/h (10 mph) in June.
Best time to visit Port-Gentil
Based on these averages, the most comfortable months for sightseeing and outdoor activities are July–September: average highs of 24 °C76 °F to 26 °C78 °F with 3 mm0.1 in to 54 mm2.1 in of precipitation per month.
The most challenging month is November, which is very wet (341 mm13 in) and humid (87% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Port-Gentil
- Wetter months (October–May) — highs 2679 to 28 °C83 °F, lows 2678 to 27 °C81 °F, about 242 mm9.5 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
- Drier months (June–September) — highs 2476 to 26 °C78 °F, lows 2374 to 25 °C77 °F, about 21 mm0.8 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.
How Port-Gentil compares
Compared with Libreville, about 144 km to the northeast, Port-Gentil has practically the same average temperature and receives 13% less precipitation (2,017 mm79 in vs 2,315 mm91 in). The difference is largest in July (0.8 °C1.4 °F cooler).
Of the 3 places in Gabon covered by World Climates, Port-Gentil is the 2nd warmest by annual mean temperature and the 2nd wettest by annual precipitation. See all of them on the Gabon climate page.
Places in other countries with the most similar temperature and rainfall pattern: Brazzaville (Republic of the Congo, Aw), Kinshasa (DR Congo, Aw) and Nkayi (Republic of the Congo, Aw).
Nearby places
- Libreville 144 km · 26 °C79 °F · 2,315 mm91 in
- São Tomé 257 km · 26 °C78 °F · 1,251 mm49 in
- Bata 307 km · 26 °C79 °F · 2,412 mm95 in
- Ciudad de la Paz 343 km · 24 °C75 °F · 1,979 mm78 in
- Ébolowa 481 km · 24 °C75 °F · 1,591 mm63 in
- Malabo 498 km · 27 °C81 °F · 2,736 mm108 in
- Edéa 524 km · 26 °C80 °F · 2,452 mm97 in
- Douala 540 km · 26 °C80 °F · 2,452 mm97 in
Frequently asked questions
What is the warmest month in Port-Gentil?
March is the warmest month in Port-Gentil, with an average high of 28 °C (83 °F) and an average low of 27 °C (81 °F).
What is the coldest month in Port-Gentil?
July is the coldest month, with an average high of 24 °C (76 °F) and an average low of 23 °C (74 °F).
When does it rain the most in Port-Gentil?
November is the wettest month with about 341 mm (13.4 in) of precipitation; July is the driest with about 3 mm (0.1 in).
What is the best time to visit Port-Gentil?
Judging by long-term averages, the most comfortable months are July–September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.