Average annual temperature is 9.9 °C
Absolute maximum temperature: 28.1 °C
Absolute minimum temperature: -5.9 °C
Number of sunny days: 85 days
Number of rainy days: 279 days
Number of snow days: 1 day
Look at detailed online map of Castle Douglas
* Weather data for Castle Douglas United Kingdom is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 11.7 | 12.8 | 14.4 | 15.6 | 22.0 | 28.1 | 21.8 | 23.0 | 25.3 | 18.6 | 13.1 | 12.2 |
| Average daytime temperature (°C) | 7.2 | 9.1 | 8.5 | 11.4 | 16.4 | 21.2 | 17.3 | 18.2 | 17.9 | 13.1 | 8.6 | 7.7 |
| Average temperature (°C) | 4.7 | 6.6 | 5.5 | 7.7 | 12.0 | 16.4 | 14.3 | 14.8 | 14.4 | 10.3 | 5.7 | 5.6 |
| Average night temperature (°C) | 2.3 | 3.7 | 2.2 | 3.8 | 7.4 | 11.2 | 11.2 | 11.5 | 10.9 | 7.5 | 2.8 | 3.1 |
| Absolute minimum temperature (°C) | -4.1 | -1.4 | -5.2 | -1.5 | 4.5 | 5.8 | 7.6 | 6.6 | 6.2 | -0.4 | -3.9 | -5.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 8.0 | 10.0 | 12.0 | 15.0 | 16.0 | 17.0 | 17.0 | 15.0 | 13.0 | 11.0 | 9.0 | 7.0 |
| Daylight mean duration (h) | 7.9 | 9.7 | 11.9 | 14.1 | 16.1 | 17.3 | 16.7 | 14.9 | 12.7 | 10.5 | 8.4 | 7.3 |
| Daylight minimum duration (h) | 7.0 | 8.0 | 10.0 | 13.0 | 15.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 7.0 | 7.0 |
| Sunshine mean duration (h) | 3.5 | 3.7 | 5.0 | 8.4 | 10.6 | 12.0 | 9.6 | 9.9 | 6.8 | 4.2 | 4.0 | 1.9 |
| Precipitation (mm) | 161 | 51 | 227 | 87 | 54 | 104 | 260 | 102 | 185 | 117 | 103 | 208 |
| Sunny days | 8 | 12 | 6 | 9 | 11 | 13 | 1 | 2 | 7 | 3 | 12 | 1 |
| Rainy days | 23 | 16 | 24 | 21 | 20 | 17 | 30 | 29 | 23 | 28 | 18 | 30 |
| Snow days | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Castle Douglas during the most sunny months:
Months with the longest average daylight duration in Castle Douglas:
The largest precipitation sum in Castle Douglas is at