Average annual temperature is 16.9 °C
Absolute maximum temperature: 37.0 °C
Absolute minimum temperature: -6.6 °C
Number of sunny days: 198 days
Number of rainy days: 167 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) | 22.3 | 23.4 | 23.8 | 28.4 | 31.2 | 37.0 | 35.6 | 36.2 | 32.7 | 30.6 | 26.3 | 20.1 |
| Average daytime temperature (°C) | 12.2 | 14.3 | 15.8 | 21.7 | 27.2 | 31.4 | 32.4 | 31.0 | 28.9 | 23.2 | 16.2 | 12.8 |
| Average temperature (°C) | 7.4 | 8.7 | 10.5 | 15.6 | 21.4 | 25.5 | 27.2 | 26.2 | 23.3 | 17.7 | 10.6 | 7.8 |
| Average night temperature (°C) | 3.6 | 4.6 | 6.1 | 10.3 | 15.9 | 19.5 | 22.3 | 22.1 | 18.5 | 13.1 | 6.1 | 3.9 |
| Absolute minimum temperature (°C) | -4.9 | -6.6 | -6.0 | 4.0 | 8.2 | 14.1 | 16.7 | 16.5 | 13.7 | -1.1 | -2.3 | -4.1 |
| 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 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.0 | 10.9 | 12.0 | 13.1 | 14.1 | 14.6 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.7 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.2 | 7.1 | 7.8 | 9.7 | 11.7 | 12.7 | 11.5 | 10.4 | 10.8 | 8.1 | 7.8 | 6.9 |
| Precipitation (mm) | 154 | 103 | 205 | 89 | 66 | 97 | 69 | 182 | 50 | 69 | 41 | 42 |
| Sunny days | 13 | 15 | 14 | 17 | 15 | 17 | 11 | 15 | 17 | 21 | 22 | 21 |
| Rainy days | 18 | 13 | 17 | 13 | 16 | 13 | 20 | 16 | 13 | 10 | 8 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Oakville during the most sunny months:
The largest precipitation sum in Oakville is at