Climate averages 1991–2020
San weather
in May.
A very hot, fairly dry month: the 2nd warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a very hot month in San: daytime highs average 39.6°C and nights cool to about 27.6°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 20 mm of rain on roughly 6 days, which makes May a fairly dry month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 44 min on an average May day.
The nearest other city in this atlas is Koutiala (118 km away). In May its highs average 37.8°C, 1.8°C cooler than San, with 38 mm of rain.
Among the 13 cities listed in Mali, San ranks 5th of 13 for the warmest May highs and 6th of 13 for the driest May (rainfall, lowest first). The mean May high of those 13 cities is 39.0°C; San is 0.6°C warmer than that mean.
From May to June, average highs fall by 2.5°C to 37.2°C, and monthly rainfall rises from 20 mm to 43 mm.
The annual picture
May 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
San climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.5°C17.7°C | 17.7°C | 1.0 | 0.2 | 11.411 h |
| February | 35.5°C20.0°C | 20.0°C | 0.1 | 0.0 | 11.712 h |
| March | 38.6°C23.3°C | 23.3°C | 1.0 | 0.4 | 12.112 h |
| April | 40.1°C26.4°C | 26.4°C | 8.8 | 2.6 | 12.412 h |
| May, selected | 39.6°C27.6°C | 27.6°C | 20 | 5.9 | 12.713 h |
| June | 37.2°C26.5°C | 26.5°C | 43 | 10.2 | 12.913 h |
| July | 33.0°C24.3°C | 24.3°C | 123 | 17.2 | 12.813 h |
| August | 30.7°C23.2°C | 23.2°C | 196 | 20.8 | 12.613 h |
| September | 32.0°C23.5°C | 23.5°C | 107 | 14.8 | 12.212 h |
| October | 35.4°C24.0°C | 24.0°C | 26 | 5.8 | 11.812 h |
| November | 35.8°C21.0°C | 21.0°C | 0.5 | 0.2 | 11.512 h |
| December | 33.2°C18.4°C | 18.4°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
May in nearby cities
- Koutiala in MayMali · 118 kmHigh 37.8°C · Low 26.3°C · 38 mm rain
- Ségou in MayMali · 148 kmHigh 39.4°C · Low 27.4°C · 16 mm rain
- Mopti in MayMali · 153 kmHigh 40.9°C · Low 28.4°C · 7.4 mm rain
- Sikasso in MayMali · 235 kmHigh 35.7°C · Low 25.2°C · 69 mm rain
- Bobo-Dioulasso in MayBurkina Faso · 244 kmHigh 35.1°C · Low 24.6°C · 66 mm rain
- Houndé in MayBurkina Faso · 250 kmHigh 36.4°C · Low 25.6°C · 58 mm rain
- Ouahigouya in MayBurkina Faso · 270 kmHigh 40.0°C · Low 27.0°C · 14 mm rain
- Banfora in MayBurkina Faso · 296 kmHigh 35.1°C · Low 24.7°C · 75 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 San) is explained once on the San year overview and on the Sources, method and limits page.