Average annual temperature is 14.8 °C
Absolute maximum temperature: 38.7 °C
Absolute minimum temperature: -9.3 °C
Number of sunny days: 195 days
Number of rainy days: 170 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) | 18.7 | 24.5 | 27.3 | 31.5 | 30.0 | 32.6 | 38.7 | 35.9 | 37.6 | 28.8 | 26.0 | 18.1 |
| Average daytime temperature (°C) | 10.3 | 13.0 | 14.3 | 22.9 | 23.3 | 28.1 | 33.1 | 31.4 | 27.3 | 21.7 | 14.0 | 10.9 |
| Average temperature (°C) | 5.8 | 7.1 | 7.8 | 15.5 | 17.0 | 21.5 | 26.2 | 24.9 | 21.4 | 15.7 | 8.0 | 5.9 |
| Average night temperature (°C) | 2.1 | 2.4 | 2.6 | 9.6 | 11.2 | 15.9 | 20.9 | 19.9 | 16.8 | 10.9 | 3.4 | 2.2 |
| Absolute minimum temperature (°C) | -3.1 | -9.3 | -4.7 | 1.7 | 6.3 | 11.3 | 18.2 | 15.5 | 10.0 | 5.8 | -6.0 | -4.4 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.6 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 5.4 | 6.6 | 7.7 | 9.3 | 10.2 | 11.1 | 11.8 | 10.9 | 8.9 | 8.8 | 7.8 | 5.7 |
| Precipitation (mm) | 63 | 60 | 60 | 101 | 40 | 73 | 140 | 39 | 100 | 23 | 63 | 143 |
| Sunny days | 13 | 16 | 17 | 17 | 16 | 13 | 9 | 14 | 16 | 22 | 24 | 18 |
| Rainy days | 18 | 12 | 14 | 13 | 15 | 17 | 22 | 17 | 14 | 9 | 6 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Opal during the most sunny months:
The largest precipitation sum in Opal is at