Average annual temperature is 7.7 °C
Absolute maximum temperature: 32.0 °C
Absolute minimum temperature: -31.2 °C
Number of sunny days: 136 days
Number of rainy days: 186 days
Number of snow days: 43 days
Look at detailed online map of Saint-Louis
* Weather data for Saint-Louis Canada is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 4.6 | 7.1 | 9.0 | 23.4 | 30.1 | 32.0 | 31.2 | 25.9 | 30.0 | 26.3 | 13.4 | 9.4 |
| Average daytime temperature (°C) | -2.2 | -2.7 | 3.1 | 13.4 | 19.3 | 23.2 | 26.2 | 23.1 | 22.0 | 15.8 | 4.6 | 1.5 |
| Average temperature (°C) | -5.5 | -8.0 | -1.2 | 7.1 | 12.9 | 18.1 | 21.6 | 18.6 | 17.0 | 12.1 | 0.8 | -1.8 |
| Average night temperature (°C) | -9.1 | -13.7 | -5.5 | 1.8 | 6.6 | 13.5 | 17.8 | 14.5 | 12.9 | 8.9 | -2.5 | -4.8 |
| Absolute minimum temperature (°C) | -18.9 | -31.2 | -15.2 | -7.8 | -1.5 | 7.4 | 11.5 | 9.7 | 5.8 | -2.5 | -9.4 | -18.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.4 | 11.9 | 13.5 | 14.9 | 15.7 | 15.3 | 14.1 | 12.5 | 10.9 | 9.5 | 8.7 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.1 | 5.6 | 6.3 | 8.0 | 11.0 | 9.9 | 10.0 | 9.6 | 9.0 | 5.9 | 5.3 | 3.3 |
| Precipitation (mm) | 108 | 69 | 58 | 128 | 78 | 150 | 183 | 183 | 63 | 145 | 63 | 116 |
| Sunny days | 9 | 6 | 9 | 13 | 18 | 9 | 6 | 5 | 19 | 9 | 16 | 17 |
| Rainy days | 8 | 6 | 13 | 17 | 13 | 21 | 25 | 26 | 11 | 22 | 11 | 13 |
| Snow days | 14 | 16 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 1 |
The best time to visit Saint-Louis during the most sunny months:
Months with the longest average daylight duration in Saint-Louis:
The largest precipitation sum in Saint-Louis is at