Climate
Climate in Saint-Louis
Air temperature, 10 m wind, sunshine hours and rain, month by month. Averages 2016-2025. This is not a trip forecast.
The year
The air is 18 °C or warmer from June to August.
2°
Jan
4°
Feb
7°
Mar
10°
Apr
14°
May
20°
Jun
21°
Jul
21°
Aug
17°
Sep
12°
Oct
6°
Nov
3°
Dec
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air (°C) | 2.4 | 4.4 | 6.9 | 10.3 | 14.2 | 19.6 | 20.9 | 20.7 | 16.5 | 11.8 | 6.1 | 3.4 |
| Sunshine (h) | 140 | 173 | 248 | 292 | 324 | 358 | 386 | 340 | 281 | 218 | 149 | 128 |
| Rain (mm) | 100 | 69 | 76 | 83 | 110 | 92 | 91 | 80 | 78 | 95 | 103 | 93 |
| Wind (kn) | 5.1 | 5.3 | 5 | 4.4 | 4.2 | 4 | 4 | 3.6 | 3.8 | 4.5 | 4.7 | 4.8 |
| Gusts (kn) | 17.8 | 18.8 | 18.3 | 17.1 | 17 | 17.4 | 17.1 | 15.5 | 15.2 | 16.1 | 15.9 | 16.7 |
Mean wind at 10 m, in knots. Gusts are the mean of each day's peak.
The seasons
Spring
March – May
10°·288 h·90 mm
4.5 kn
Summer
June – August
20°·361 h·88 mm
3.9 kn
Autumn
September – November
11°·216 h·92 mm
4.3 kn
Winter
December – February
3°·147 h·87 mm
5.1 kn
