Climate averages 1991–2020
Ouagadougou weather
in September.
A hot, wet month: the 11th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Ouagadougou: daytime highs average 31.5°C and nights cool to about 23.1°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 108 mm of rain on roughly 15 days, which makes September a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 12 min on an average September day.
The nearest other city in this atlas is Saaba (13 km away). In September its highs average 31.5°C, about as warm as Ouagadougou, with 108 mm of rain.
Among the 10 cities listed in Burkina Faso, Ouagadougou ranks joint 3rd of 10 for the warmest September highs and joint 5th of 10 for the driest September (rainfall, lowest first). The mean September high of those 10 cities is 30.9°C; Ouagadougou is 0.6°C warmer than that mean.
From September to October, average highs rise by 2.9°C to 34.4°C, and monthly rainfall falls from 108 mm to 33 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
Ouagadougou climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.8°C17.7°C | 17.7°C | 0.3 | 0.1 | 11.511 h |
| February | 35.7°C19.9°C | 19.9°C | 0.7 | 0.2 | 11.712 h |
| March | 38.6°C23.2°C | 23.2°C | 1.9 | 0.7 | 12.112 h |
| April | 39.6°C26.4°C | 26.4°C | 12 | 3.0 | 12.412 h |
| May | 38.4°C27.2°C | 27.2°C | 26 | 6.3 | 12.713 h |
| June | 35.6°C25.6°C | 25.6°C | 52 | 9.9 | 12.813 h |
| July | 32.2°C23.8°C | 23.8°C | 122 | 17.7 | 12.813 h |
| August | 30.2°C22.8°C | 22.8°C | 199 | 22.3 | 12.513 h |
| September, selected | 31.5°C23.1°C | 23.1°C | 108 | 14.7 | 12.212 h |
| October | 34.4°C23.7°C | 23.7°C | 33 | 6.0 | 11.912 h |
| November | 35.5°C20.5°C | 20.5°C | 0.9 | 0.3 | 11.612 h |
| December | 33.4°C18.2°C | 18.2°C | 0 | 0.0 | 11.411 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
- Saaba in SeptemberBurkina Faso · 13 kmHigh 31.5°C · Low 23.1°C · 108 mm rain
- Koudougou in SeptemberBurkina Faso · 91 kmHigh 31.1°C · Low 23.0°C · 122 mm rain
- Kaya in SeptemberBurkina Faso · 94 kmHigh 32.3°C · Low 23.1°C · 80 mm rain
- Pouytenga in SeptemberBurkina Faso · 121 kmHigh 31.4°C · Low 22.9°C · 98 mm rain
- Ouahigouya in SeptemberBurkina Faso · 165 kmHigh 32.9°C · Low 23.5°C · 85 mm rain
- Bolgatanga in SeptemberGhana · 191 kmHigh 29.6°C · Low 22.6°C · 144 mm rain
- Bawku in SeptemberGhana · 202 kmHigh 29.8°C · Low 22.6°C · 137 mm rain
- Fada N'gourma in SeptemberBurkina Faso · 208 kmHigh 30.8°C · Low 22.8°C · 105 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 Ouagadougou) is explained once on the Ouagadougou year overview and on the Sources, method and limits page.
Saaba lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.