Port-Gentil Weather in September
Average highs run from 25°C on September 1 to 26°C on September 30, and lows from 24°C to 25°C. Normal precipitation for the month is 51 mm over about 11 wet days.
September day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 25°C
- Average low
- 25°C
- Precipitation
- 51 mm
- Record high
- 33°CSep 22, 2014
- Record low
- 18°CSep 7, 1973
- Daylight
- 12 h 06 min to 12 h 07 min
- Cloud cover
- 75%
- Humidity
- 85%
- Dew point
- 22°C
- Wind
- 18.0 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 25°C | 24°C | 30°C 1951 | 19°C 1951 | 11% |
| Sep 2 | 25°C | 24°C | 30°C 1951 | 21°C 1950 | 12% |
| Sep 3 | 25°C | 24°C | 29°C 2019 | 21°C 1968 | 13% |
| Sep 4 | 25°C | 24°C | 29°C 2018 | 21°C 1951 | 14% |
| Sep 5 | 25°C | 24°C | 30°C 1963 | 20°C 1952 | 14% |
| Sep 6 | 25°C | 24°C | 31°C 2015 | 20°C 1968 | 15% |
| Sep 7 | 25°C | 24°C | 30°C 1951 | 18°C 1973 | 17% |
| Sep 8 | 25°C | 24°C | 30°C 1951 | 21°C 1972 | 18% |
| Sep 9 | 25°C | 25°C | 30°C 2010 | 20°C 1955 | 20% |
| Sep 10 | 25°C | 25°C | 31°C 1982 | 21°C 1968 | 21% |
| Sep 11 | 25°C | 25°C | 31°C 1951 | 20°C 1965 | 24% |
| Sep 12 | 25°C | 25°C | 31°C 1951 | 21°C 1983 | 27% |
| Sep 13 | 25°C | 25°C | 31°C 1951 | 21°C 1963 | 30% |
| Sep 14 | 25°C | 25°C | 31°C 1952 | 21°C 1953 | 33% |
| Sep 15 | 25°C | 25°C | 31°C 1952 | 21°C 1969 | 36% |
| Sep 16 | 25°C | 25°C | 31°C 1951 | 21°C 1964 | 39% |
| Sep 17 | 25°C | 25°C | 31°C 2017 | 21°C 1951 | 41% |
| Sep 18 | 26°C | 25°C | 30°C 1951 | 21°C 1951 | 43% |
| Sep 19 | 26°C | 25°C | 32°C 1979 | 21°C 1984 | 45% |
| Sep 20 | 26°C | 25°C | 31°C 2017 | 21°C 1955 | 47% |
| Sep 21 | 26°C | 25°C | 30°C 2017 | 21°C 1964 | 49% |
| Sep 22 | 26°C | 25°C | 33°C 2014 | 22°C 1964 | 52% |
| Sep 23 | 26°C | 25°C | 30°C 1963 | 21°C 1964 | 54% |
| Sep 24 | 26°C | 25°C | 31°C 1962 | 22°C 1974 | 57% |
| Sep 25 | 26°C | 25°C | 31°C 2017 | 18°C 2011 | 60% |
| Sep 26 | 26°C | 25°C | 32°C 1965 | 21°C 2005 | 60% |
| Sep 27 | 26°C | 25°C | 31°C 1951 | 22°C 1960 | 62% |
| Sep 28 | 26°C | 25°C | 30°C 1952 | 21°C 2015 | 63% |
| Sep 29 | 26°C | 25°C | 31°C 1951 | 22°C 1969 | 64% |
| Sep 30 | 26°C | 25°C | 31°C 1951 | 21°C 1963 | 65% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+1).
- September 1
- sunrise 6:22 AM, sunset 6:28 PM
- September 30
- sunrise 6:11 AM, sunset 6:18 PM
Other months
Sources
Records: NOAA GHCN-Daily, station GB000004501, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-27. Sun and moon: computed with the NOAA solar equations and Meeus.