Libreville Weather in September

September in Libreville brings high temperatures, with highs of 28°C (82°F) and nights dropping to 24°C (75°F). Rainfall is on the higher side this month, averaging around 155 mm (6.1 in), so keep a rain jacket handy.

Rainfall in Libreville in September

Expect around 15 days of rain based on historical data, with 155 mm (6.1 in) average. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Libreville in September

Expect highs of 28°C (82°F) in Libreville in September, with nights dropping to around 24°C (75°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights stay warm at around 24°C (75°F), so light bedding and good ventilation are worth thinking about.

Sunshine in Libreville in September

The area sees fewer sunny days, with a projection of about 99 hours of sunshine. This reduced sunlight makes it ideal for those who prefer overcast conditions over bright sunny days.

Wind Speed in Libreville in September

Wind speeds average 1 m/s (2 knots) during September. At this speed, you'll experience mostly light air movement that's just barely noticeable. As an average, some days will be completely calm while others have gentle breezes you can feel on your skin.

Average water temperature in September

With water at 24°C (75°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.

For Libreville itself, June, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Gabon, check out our Libreville's climate page.

Libreville Temperature in September

Min Temperature 24°C (75°F)  

Max Temperature 28°C (82°F)  

Water Temperature 24°C (75°F)  

Chance of Rain 49%  

Precipitation 155 mm (6.1 in)  

Rainy days 15 days  

Humidity 84%  

Windspeed 1 m/s (2 knots)  

Sunshine 99 hours  

Percentage Sunshine  

Daily Historical Temperatures

43-year average (1976-2025)

Based on our historical records, temperatures in Libreville typically stay consistent throughout September, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 24°C (75°F).

Average temperatures in September

‹ Select year to compare to 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 ›

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Daily Historical Precipitation

43-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in September

‹ Select year to compare to 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 ›

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Historical weather for Libreville in September

Browse day-by-day weather records for Libreville spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

‹ 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 ›

‹ January February March April May June July August September October November December ›

Libreville historical weather extremes in September

Based on weather observations in Libreville between 2000 and 2025, these are the recorded extremes during September.

• The hottest September day on record in Libreville reached 30°C (86°F) (September 8, 2007).
• The lowest daytime temperature in September was 25°C (77°F), recorded on September 3, 2003.
• Nighttime temperatures dropped to 20°C (68°F) on September 11, 2006, marking the coldest September night on record.

What to Wear in Libreville in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. With water temperatures around 24°C (75°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.

What To Do in Libreville in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Gabon, check out our Libreville's climate page.

More climate data for Libreville

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Libreville climate overview or explore weather in Gabon.