Climate averages 1991–2020
Saint-Louis weather
in August.
A hot, moderately wet month: the 4th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Saint-Louis: daytime highs average 30.1°C and nights cool to about 25.6°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 57 mm of rain on roughly 8 days, which makes August a moderately wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 40 min on an average August day.
The nearest other city in this atlas is Louga (53 km away). In August its highs average 31.9°C, 1.9°C warmer than Saint-Louis, with 94 mm of rain.
Among the 16 cities listed in Senegal, Saint-Louis ranks joint 10th of 16 for the warmest August highs and 1st of 16 for the driest August (rainfall, lowest first). The mean August high of those 16 cities is 30.7°C; Saint-Louis is 0.6°C cooler than that mean.
From August to September, average highs rise by 0.9°C to 30.9°C, and monthly rainfall falls from 57 mm to 52 mm.
The annual picture
August 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 | 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, selected | 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
August in nearby cities
- Louga in AugustSenegal · 53 kmHigh 31.9°C · Low 24.4°C · 94 mm rain
- Richard-Toll in AugustSenegal · 98 kmHigh 34.9°C · Low 25.2°C · 59 mm rain
- Tivaouane in AugustSenegal · 124 kmHigh 30.3°C · Low 24.2°C · 122 mm rain
- Touba in AugustSenegal · 144 kmHigh 31.8°C · Low 23.8°C · 146 mm rain
- Thiès in AugustSenegal · 144 kmHigh 30.6°C · Low 24.1°C · 146 mm rain
- Thiès Nones in AugustSenegal · 146 kmHigh 30.1°C · Low 24.4°C · 146 mm rain
- Mbaké in AugustSenegal · 150 kmHigh 31.6°C · Low 23.8°C · 146 mm rain
- Diourbel in AugustSenegal · 155 kmHigh 31.5°C · Low 24.0°C · 150 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.