September · Gabon
Best time to visit Port-Gentil in September Weather, crowds & prices
Weather in Port-Gentil in September
Average temperature 25°C, 70 mm of rain, about 28 days with 6+ hours of sunshine and 81% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
6.9/10
Ranked #4 of 12 months
- Avg temp
- 25°C
- Rainfall
- 70 mm
- Humidity
- 81%
- Days with 6h+ sun
- 28
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Port-Gentil scores 6.9/10 for sightseeing and cultural travel - an above-average month (#4 of 12). Expect around 25°C, 70 mm of rain, and roughly 28 days with 6+ hours of sunshine this month.
Port-Gentil is Gabon's Atlantic oil and port city, with beaches, estuary landscapes, commercial streets, and access to the country's coastal environment.
September in Port-Gentil: mixed conditions, plan around the weather
At 25°C (78°F) this is comfortable city weather in September, with sightseeing easiest before lunch and after the afternoon peak.
Budget for roughly 70 mm of rain this month — a flexible day or two helps — with about 28 days with 6+ hours of sunshine and 12.1 hours of daylight to work around it.
That is 6.9/10 on the same scale — 4th of 12 months, versus 8.6/10 for the best month here.
Pack light clothing, a hat and real sun protection, a packable rain layer.
Expect mid-season pricing, and crowds are moderate.
If your dates are flexible, July is materially better in Port-Gentil — 1.7 points higher on the same scale.
Frequently asked
- What is the weather like in Port-Gentil in September?
- In September, Port-Gentil averages 25°C, 70 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 6.9/10.
- Is September a good time to visit Port-Gentil?
- September earns a 6.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Port-Gentil in September?
- Expect about 70 mm of rain in September. Average humidity is 81% and there are about 28 days with 6+ hours of sunshine.
Curated in Port-Gentil
Tickets & experiences
Things to do in Port-Gentil
Port-Gentil, Gabon. Live activities and tours from GetYourGuide, matched to this destination.