Climate averages 1991–2020
Bonon weather
in September.
A hot, wet month: the 10th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Bonon: daytime highs average 28.8°C and nights cool to about 22.0°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 167 mm of rain on roughly 24 days, which makes September a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 10 min on an average September day.
The nearest other city in this atlas is Bouaflé (34 km away). In September its highs average 28.9°C, about as warm as Bonon, with 161 mm of rain.
Among the 30 cities listed in Ivory Coast, Bonon ranks joint 11th of 30 for the warmest September highs and joint 19th of 30 for the driest September (rainfall, lowest first). The mean September high of those 30 cities is 28.3°C; Bonon is 0.5°C warmer than that mean.
From September to October, average highs rise by 0.6°C to 29.3°C, and monthly rainfall falls from 167 mm to 99 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
Bonon climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 33.1°C21.5°C | 21.5°C | 17 | 3.8 | 11.812 h |
| February | 33.6°C22.9°C | 22.9°C | 42 | 7.1 | 11.912 h |
| March | 33.1°C23.5°C | 23.5°C | 78 | 14.7 | 12.112 h |
| April | 32.3°C23.5°C | 23.5°C | 92 | 16.9 | 12.312 h |
| May | 31.3°C23.2°C | 23.2°C | 103 | 19.0 | 12.412 h |
| June | 29.7°C22.4°C | 22.4°C | 98 | 18.3 | 12.513 h |
| July | 28.5°C21.9°C | 21.9°C | 86 | 16.8 | 12.512 h |
| August | 28.2°C21.8°C | 21.8°C | 111 | 18.3 | 12.312 h |
| September, selected | 28.8°C22.0°C | 22.0°C | 167 | 23.9 | 12.212 h |
| October | 29.3°C22.2°C | 22.2°C | 99 | 19.3 | 12.012 h |
| November | 30.0°C22.2°C | 22.2°C | 39 | 9.7 | 11.812 h |
| December | 31.6°C21.8°C | 21.8°C | 14 | 3.6 | 11.712 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
- Bouaflé in SeptemberIvory Coast · 34 kmHigh 28.9°C · Low 22.4°C · 161 mm rain
- Sinfra in SeptemberIvory Coast · 37 kmHigh 28.6°C · Low 21.8°C · 161 mm rain
- Daloa in SeptemberIvory Coast · 45 kmHigh 28.7°C · Low 21.8°C · 193 mm rain
- Vavoua in SeptemberIvory Coast · 69 kmHigh 28.8°C · Low 21.9°C · 173 mm rain
- Yamoussoukro in SeptemberIvory Coast · 86 kmHigh 29.0°C · Low 22.3°C · 149 mm rain
- Gagnoa in SeptemberIvory Coast · 89 kmHigh 28.6°C · Low 22.0°C · 158 mm rain
- Séguéla in SeptemberIvory Coast · 134 kmHigh 29.2°C · Low 21.4°C · 234 mm rain
- Soubré in SeptemberIvory Coast · 141 kmHigh 28.7°C · Low 22.3°C · 159 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 Bonon) is explained once on the Bonon year overview and on the Sources, method and limits page.