Average annual temperature is 17.7 °C
Absolute maximum temperature: 40.6 °C
Absolute minimum temperature: -4.7 °C
Number of sunny days: 206 days
Number of rainy days: 159 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) | 21.7 | 23.4 | 25.1 | 27.3 | 31.1 | 38.3 | 38.2 | 40.6 | 36.7 | 31.3 | 26.1 | 18.0 |
| Average daytime temperature (°C) | 13.1 | 15.4 | 18.4 | 21.3 | 26.9 | 32.3 | 34.7 | 35.2 | 30.6 | 23.5 | 17.0 | 13.4 |
| Average temperature (°C) | 8.3 | 9.5 | 12.2 | 15.4 | 21.1 | 25.7 | 28.2 | 28.7 | 24.3 | 18.2 | 11.4 | 8.4 |
| Average night temperature (°C) | 4.6 | 5.6 | 7.6 | 10.4 | 16.2 | 20.5 | 23.1 | 23.1 | 19.2 | 14.0 | 7.1 | 4.6 |
| Absolute minimum temperature (°C) | -3.2 | -4.7 | -4.7 | 4.6 | 7.2 | 16.8 | 19.1 | 17.1 | 15.9 | -0.8 | -1.8 | -1.4 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 6.2 | 5.9 | 8.0 | 8.6 | 10.4 | 11.9 | 11.3 | 11.8 | 10.2 | 7.8 | 7.5 | 7.2 |
| Precipitation (mm) | 110 | 160 | 299 | 118 | 78 | 76 | 59 | 105 | 51 | 127 | 46 | 61 |
| Sunny days | 17 | 10 | 15 | 18 | 15 | 12 | 16 | 22 | 18 | 18 | 23 | 22 |
| Rainy days | 14 | 18 | 16 | 12 | 16 | 18 | 15 | 9 | 12 | 13 | 7 | 9 |
| 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