Climate averages 1991–2020
Franceville weather
in September.
A hot, wet month: the 5th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Franceville: daytime highs average 29.4°C and nights cool to about 21.1°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 109 mm of rain on roughly 21 days, which makes September a wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 06 min on an average September day.
The nearest other city in this atlas is Moanda, Gabon (43 km away). In September its highs average 29.5°C, about as warm as Franceville, with 106 mm of rain.
Among the 6 cities listed in Gabon, Franceville ranks 2nd of 6 for the warmest September highs and 3rd of 6 for the driest September (rainfall, lowest first). The mean September high of those 6 cities is 28.3°C; Franceville is 1.1°C warmer than that mean.
From September to October, average highs fall by 0.5°C to 28.9°C, and monthly rainfall rises from 109 mm to 197 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Franceville climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.8°C21.1°C | 21.1°C | 146 | 21.8 | 12.212 h |
| February | 30.2°C21.3°C | 21.3°C | 154 | 20.5 | 12.212 h |
| March | 30.2°C21.4°C | 21.4°C | 176 | 23.3 | 12.112 h |
| April | 29.5°C21.5°C | 21.5°C | 165 | 23.5 | 12.112 h |
| May | 29.3°C21.3°C | 21.3°C | 138 | 23.4 | 12.012 h |
| June | 28.9°C20.5°C | 20.5°C | 40 | 9.5 | 12.012 h |
| July | 29.1°C20.2°C | 20.2°C | 26 | 6.8 | 12.012 h |
| August | 29.2°C20.8°C | 20.8°C | 47 | 11.6 | 12.112 h |
| September, selected | 29.4°C21.1°C | 21.1°C | 109 | 20.8 | 12.112 h |
| October | 28.9°C20.9°C | 20.9°C | 197 | 27.4 | 12.112 h |
| November | 28.8°C20.8°C | 20.8°C | 207 | 26.5 | 12.212 h |
| December | 29.2°C20.9°C | 20.9°C | 184 | 24.8 | 12.212 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Moanda, Gabon in SeptemberGabon · 43 kmHigh 29.5°C · Low 21.5°C · 106 mm rain
- Nkayi in SeptemberRepublic of the Congo · 286 kmHigh 29.8°C · Low 21.4°C · 11 mm rain
- Dolisie in SeptemberRepublic of the Congo · 303 kmHigh 27.9°C · Low 20.3°C · 18 mm rain
- Brazzaville in SeptemberRepublic of the Congo · 348 kmHigh 31.2°C · Low 21.7°C · 16 mm rain
- Kinshasa in SeptemberDemocratic Republic of the Congo · 356 kmHigh 31.2°C · Low 21.7°C · 16 mm rain
- Masina in SeptemberDemocratic Republic of the Congo · 366 kmHigh 31.4°C · Low 21.7°C · 19 mm rain
- Pointe-Noire in SeptemberRepublic of the Congo · 398 kmHigh 26.1°C · Low 21.7°C · 6.3 mm rain
- Inkisi in SeptemberDemocratic Republic of the Congo · 422 kmHigh 29.7°C · Low 20.4°C · 21 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Franceville) is explained once on the Franceville year overview and on the Sources, method and limits page.