Climate averages 1991–2020
Kayes weather
in September.
A hot, wet month: the 11th 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 Kayes: daytime highs average 32.5°C and nights cool to about 24.7°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 108 mm of rain on roughly 11 days, which makes September a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 13 min on an average September day.
The nearest other city in this atlas is Tambacounda (251 km away). In September its highs average 31.0°C, 1.5°C cooler than Kayes, with 159 mm of rain.
Among the 13 cities listed in Mali, Kayes ranks 4th of 13 for the warmest September highs and 5th of 13 for the driest September (rainfall, lowest first). The mean September high of those 13 cities is 31.9°C; Kayes is 0.5°C warmer than that mean.
From September to October, average highs rise by 3.3°C to 35.8°C, and monthly rainfall falls from 108 mm to 24 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
Kayes climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 33.7°C19.4°C | 19.4°C | 0.4 | 0.1 | 11.411 h |
| February | 36.6°C21.5°C | 21.5°C | 0.2 | 0.0 | 11.712 h |
| March | 39.5°C24.1°C | 24.1°C | 0.2 | 0.0 | 12.012 h |
| April | 41.8°C27.1°C | 27.1°C | 0.4 | 0.1 | 12.412 h |
| May | 42.0°C29.4°C | 29.4°C | 4.7 | 1.3 | 12.813 h |
| June | 39.5°C28.5°C | 28.5°C | 24 | 4.5 | 13.013 h |
| July | 34.5°C25.8°C | 25.8°C | 98 | 11.1 | 12.913 h |
| August | 31.7°C24.6°C | 24.6°C | 160 | 15.0 | 12.613 h |
| September, selected | 32.5°C24.7°C | 24.7°C | 108 | 11.1 | 12.212 h |
| October | 35.8°C25.1°C | 25.1°C | 24 | 4.4 | 11.812 h |
| November | 36.6°C22.3°C | 22.3°C | 1.0 | 0.2 | 11.511 h |
| December | 34.3°C20.1°C | 20.1°C | 1.2 | 0.1 | 11.311 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
- Tambacounda in SeptemberSenegal · 251 kmHigh 31.0°C · Low 23.7°C · 159 mm rain
- Kita in SeptemberMali · 263 kmHigh 29.4°C · Low 22.0°C · 188 mm rain
- Labé in SeptemberGuinea · 360 kmHigh 25.9°C · Low 18.4°C · 259 mm rain
- Kati in SeptemberMali · 411 kmHigh 29.5°C · Low 21.9°C · 165 mm rain
- Kolda in SeptemberSenegal · 415 kmHigh 30.1°C · Low 23.4°C · 211 mm rain
- Siguiri in SeptemberGuinea · 417 kmHigh 29.0°C · Low 21.6°C · 219 mm rain
- Dialakorodji in SeptemberMali · 423 kmHigh 29.9°C · Low 22.3°C · 165 mm rain
- Bamako in SeptemberMali · 427 kmHigh 29.6°C · Low 22.2°C · 163 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 Kayes) is explained once on the Kayes year overview and on the Sources, method and limits page.