Average annual temperature is 15.1 °C
Absolute maximum temperature: 39.8 °C
Absolute minimum temperature: -9.5 °C
Number of sunny days: 202 days
Number of rainy days: 160 days
Number of snow days: 3 days
Look at detailed online map of Opal
* Weather data for Opal 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) | 20.7 | 21.2 | 23.9 | 26.6 | 30.4 | 37.9 | 36.5 | 39.8 | 33.8 | 29.9 | 25.7 | 17.6 |
| Average daytime temperature (°C) | 9.7 | 12.6 | 13.8 | 20.0 | 25.4 | 30.4 | 32.7 | 32.6 | 28.6 | 20.6 | 15.2 | 10.9 |
| Average temperature (°C) | 4.2 | 6.0 | 8.0 | 13.5 | 19.2 | 23.8 | 26.4 | 26.2 | 22.1 | 15.4 | 9.2 | 6.2 |
| Average night temperature (°C) | 0.4 | 1.2 | 3.4 | 8.0 | 14.1 | 18.2 | 21.4 | 21.3 | 17.1 | 11.4 | 5.0 | 2.8 |
| Absolute minimum temperature (°C) | -9.5 | -8.9 | -7.0 | 0.9 | 5.4 | 13.4 | 17.3 | 14.5 | 12.9 | -2.1 | -4.9 | -3.3 |
| 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 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.1 | 14.1 | 14.7 | 14.4 | 13.5 | 12.4 | 11.2 | 10.2 | 9.7 |
| 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) | 5.5 | 7.1 | 7.3 | 10.0 | 10.8 | 12.5 | 11.2 | 11.2 | 10.7 | 8.0 | 7.5 | 5.8 |
| Precipitation (mm) | 52 | 94 | 169 | 60 | 100 | 77 | 96 | 89 | 62 | 68 | 57 | 54 |
| Sunny days | 16 | 18 | 12 | 16 | 17 | 14 | 15 | 19 | 19 | 19 | 22 | 15 |
| Rainy days | 13 | 10 | 19 | 14 | 14 | 16 | 16 | 12 | 11 | 12 | 8 | 15 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Opal during the most sunny months:
The largest precipitation sum in Opal is at