Average annual temperature is 12.7 °C
Absolute maximum temperature: 20.9 °C
Absolute minimum temperature: 4.0 °C
Number of sunny days: 113 days
Number of rainy days: 252 days
Look at detailed online map of Bailiwick of Guernsey
* Weather data for Bailiwick of Guernsey Guernsey is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 12.9 | 11.3 | 12.6 | 12.7 | 14.9 | 18.3 | 19.5 | 20.3 | 20.9 | 20.0 | 15.4 | 14.1 |
| Average daytime temperature (°C) | 10.0 | 9.5 | 10.1 | 10.7 | 12.8 | 15.6 | 16.9 | 17.5 | 18.7 | 16.5 | 13.1 | 12.0 |
| Average temperature (°C) | 9.0 | 8.6 | 9.1 | 9.8 | 12.0 | 14.8 | 16.2 | 16.8 | 17.6 | 15.4 | 12.0 | 11.1 |
| Average night temperature (°C) | 8.0 | 7.7 | 8.3 | 9.1 | 11.2 | 14.1 | 15.6 | 16.2 | 16.7 | 14.5 | 10.8 | 10.2 |
| Absolute minimum temperature (°C) | 4.0 | 5.6 | 4.2 | 7.4 | 10.4 | 11.9 | 14.4 | 15.2 | 13.1 | 11.2 | 7.1 | 5.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 16.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.7 | 10.1 | 11.9 | 13.7 | 15.4 | 16.2 | 15.8 | 14.4 | 12.6 | 10.8 | 9.1 | 8.2 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.7 | 5.7 | 5.7 | 9.0 | 12.3 | 12.9 | 11.1 | 9.8 | 9.5 | 6.7 | 4.6 | 3.8 |
| Precipitation (mm) | 124 | 16 | 116 | 59 | 37 | 22 | 72 | 82 | 67 | 114 | 233 | 151 |
| Sunny days | 5 | 13 | 2 | 11 | 19 | 20 | 10 | 7 | 12 | 8 | 1 | 5 |
| Rainy days | 26 | 15 | 29 | 19 | 12 | 10 | 21 | 24 | 18 | 23 | 29 | 26 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Bailiwick of Guernsey during the most sunny months:
Months with the longest average daylight duration in Bailiwick of Guernsey:
The largest precipitation sum in Bailiwick of Guernsey is at