Climate averages 1991–2020
Bumba weather
in September.
A hot, wet month: the 9th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Bumba: daytime highs average 29.1°C and nights cool to about 22.4°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 157 mm of rain on roughly 25 days, which makes September a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 08 min on an average September day.
The nearest other city in this atlas is Lisala (106 km away). In September its highs average 28.8°C, about as warm as Bumba, with 161 mm of rain.
Among the 60 cities listed in the Democratic Republic of the Congo, Bumba ranks joint 37th of 60 for the warmest September highs and 49th of 60 for the driest September (rainfall, lowest first). The mean September high of those 60 cities is 29.6°C; Bumba is 0.5°C cooler than that mean.
From September to October, average highs fall by 0.2°C to 28.8°C, and monthly rainfall rises from 157 mm to 179 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
Bumba climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.3°C23.1°C | 23.1°C | 41 | 8.2 | 12.012 h |
| February | 32.7°C23.6°C | 23.6°C | 70 | 11.2 | 12.012 h |
| March | 31.6°C23.6°C | 23.6°C | 136 | 18.5 | 12.112 h |
| April | 30.5°C23.5°C | 23.5°C | 143 | 21.0 | 12.212 h |
| May | 30.1°C23.4°C | 23.4°C | 126 | 21.2 | 12.212 h |
| June | 29.5°C22.8°C | 22.8°C | 108 | 19.9 | 12.212 h |
| July | 29.2°C22.3°C | 22.3°C | 119 | 21.7 | 12.212 h |
| August | 28.9°C22.2°C | 22.2°C | 150 | 24.3 | 12.212 h |
| September, selected | 29.1°C22.4°C | 22.4°C | 157 | 24.7 | 12.112 h |
| October | 28.8°C22.4°C | 22.4°C | 179 | 25.8 | 12.112 h |
| November | 29.0°C22.6°C | 22.6°C | 145 | 23.0 | 12.012 h |
| December | 30.5°C22.9°C | 22.9°C | 60 | 11.1 | 12.012 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
- Lisala in SeptemberDemocratic Republic of the Congo · 106 kmHigh 28.8°C · Low 22.1°C · 161 mm rain
- Basoko in SeptemberDemocratic Republic of the Congo · 166 kmHigh 29.1°C · Low 22.5°C · 144 mm rain
- Binga in SeptemberDemocratic Republic of the Congo · 220 kmHigh 28.9°C · Low 21.8°C · 159 mm rain
- Buta in SeptemberDemocratic Republic of the Congo · 260 kmHigh 29.0°C · Low 21.4°C · 139 mm rain
- Gbadolite in SeptemberDemocratic Republic of the Congo · 284 kmHigh 29.3°C · Low 22.0°C · 151 mm rain
- Gemena in SeptemberDemocratic Republic of the Congo · 322 kmHigh 28.8°C · Low 21.6°C · 159 mm rain
- Kisangani in SeptemberDemocratic Republic of the Congo · 355 kmHigh 28.7°C · Low 21.8°C · 165 mm rain
- Bambari in SeptemberCentral African Republic · 445 kmHigh 29.1°C · Low 21.3°C · 190 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 Bumba) is explained once on the Bumba year overview and on the Sources, method and limits page.