Climate averages 1991–2020
Saint-Louis weather
in May.
A hot, very dry month: the 8th warmest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Saint-Louis: daytime highs average 28.1°C and nights cool to about 20.5°C. By daytime temperature it is the 8th warmest of the 12 months.
Rain is very rare: less than 1 mm falls in a typical May (the driest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 52 min on an average May day.
The nearest other city in this atlas is Louga (53 km away). In May its highs average 35.8°C, 7.7°C warmer than Saint-Louis, with almost no rain (under 1 mm).
Among the 16 cities listed in Senegal, Saint-Louis ranks 15th of 16 for the warmest May highs and joint 1st of 16 for the driest May (rainfall, lowest first). The mean May high of those 16 cities is 34.3°C; Saint-Louis is 6.2°C cooler than that mean.
From May to June, average highs rise by 0.8°C to 28.9°C, and monthly rainfall stays under 1 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
Saint-Louis climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.0°C18.4°C | 18.4°C | 2.7 | 0.2 | 11.311 h |
| February | 27.4°C18.9°C | 18.9°C | 1.4 | 0.2 | 11.612 h |
| March | 27.9°C19.3°C | 19.3°C | 0.1 | 0.0 | 12.012 h |
| April | 27.6°C19.3°C | 19.3°C | 0.1 | 0.0 | 12.512 h |
| May, selected | 28.1°C20.5°C | 20.5°C | 0 | 0.0 | 12.913 h |
| June | 28.9°C22.7°C | 22.7°C | 0.8 | 0.3 | 13.113 h |
| July | 29.5°C24.6°C | 24.6°C | 11 | 2.0 | 13.013 h |
| August | 30.1°C25.6°C | 25.6°C | 57 | 7.7 | 12.713 h |
| September | 30.9°C26.1°C | 26.1°C | 52 | 7.2 | 12.212 h |
| October | 32.1°C25.6°C | 25.6°C | 13 | 2.1 | 11.812 h |
| November | 31.0°C23.2°C | 23.2°C | 0.3 | 0.1 | 11.411 h |
| December | 28.6°C20.2°C | 20.2°C | 1.7 | 0.3 | 11.211 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
- Louga in MaySenegal · 53 kmHigh 35.8°C · Low 20.6°C · 0 mm rain
- Richard-Toll in MaySenegal · 98 kmHigh 39.2°C · Low 22.6°C · 0.4 mm rain
- Tivaouane in MaySenegal · 124 kmHigh 30.6°C · Low 19.7°C · 0.1 mm rain
- Touba in MaySenegal · 144 kmHigh 37.7°C · Low 20.6°C · 0.2 mm rain
- Thiès in MaySenegal · 144 kmHigh 33.1°C · Low 19.8°C · 0.1 mm rain
- Thiès Nones in MaySenegal · 146 kmHigh 31.1°C · Low 20.1°C · 0.1 mm rain
- Mbaké in MaySenegal · 150 kmHigh 37.6°C · Low 20.6°C · 0.2 mm rain
- Diourbel in MaySenegal · 155 kmHigh 37.0°C · Low 20.7°C · 0.2 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 Saint-Louis) is explained once on the Saint-Louis year overview and on the Sources, method and limits page.