Average annual temperature is 12.9 °C
Absolute maximum temperature: 34.7 °C
Absolute minimum temperature: -11.1 °C
Number of sunny days: 176 days
Number of rainy days: 181 days
Number of snow days: 8 days
Look at detailed online map of Oakville
* Weather data for Oakville United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 17.2 | 21.0 | 22.2 | 29.9 | 28.6 | 34.1 | 34.6 | 33.8 | 34.7 | 27.7 | 21.5 | 15.4 |
| Average daytime temperature (°C) | 7.9 | 10.6 | 11.1 | 20.0 | 22.3 | 26.4 | 30.6 | 29.0 | 24.8 | 19.4 | 11.6 | 8.8 |
| Average temperature (°C) | 4.2 | 4.4 | 5.2 | 13.2 | 15.5 | 20.1 | 24.5 | 22.9 | 19.2 | 14.0 | 6.1 | 4.6 |
| Average night temperature (°C) | 1.2 | -0.3 | 0.5 | 7.3 | 8.9 | 14.4 | 19.3 | 17.9 | 14.7 | 9.5 | 1.7 | 1.4 |
| Absolute minimum temperature (°C) | -3.5 | -11.1 | -6.1 | 0.2 | 2.9 | 8.6 | 15.6 | 14.3 | 8.8 | 1.9 | -5.7 | -5.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.6 | 6.9 | 7.3 | 9.4 | 11.0 | 10.6 | 12.4 | 10.9 | 8.7 | 7.7 | 7.6 | 4.1 |
| Precipitation (mm) | 75 | 39 | 66 | 94 | 26 | 65 | 100 | 85 | 101 | 56 | 53 | 99 |
| Sunny days | 12 | 15 | 14 | 15 | 20 | 15 | 6 | 10 | 14 | 20 | 21 | 14 |
| Rainy days | 18 | 10 | 16 | 15 | 11 | 15 | 25 | 21 | 16 | 11 | 8 | 15 |
| Snow days | 1 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 |
The best time to visit Oakville during the most sunny months:
The largest precipitation sum in Oakville is at