Average annual temperature is 11.4 °C
Absolute maximum temperature: 26.6 °C
Absolute minimum temperature: -3.5 °C
Number of sunny days: 91 days
Number of rainy days: 272 days
Number of snow days: 2 days
Look at detailed online map of St Keyne
* Weather data for St Keyne 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) | 12.4 | 11.7 | 13.0 | 15.2 | 22.8 | 26.6 | 22.5 | 22.0 | 25.8 | 20.7 | 14.3 | 13.1 |
| Average daytime temperature (°C) | 8.3 | 9.3 | 10.2 | 12.0 | 17.0 | 21.0 | 18.1 | 18.5 | 19.6 | 15.2 | 10.7 | 10.4 |
| Average temperature (°C) | 5.8 | 6.3 | 7.6 | 8.8 | 12.9 | 17.1 | 15.5 | 15.7 | 16.5 | 12.8 | 8.9 | 8.6 |
| Average night temperature (°C) | 3.1 | 3.2 | 5.3 | 5.7 | 8.9 | 12.8 | 12.8 | 13.0 | 13.2 | 10.5 | 6.8 | 6.4 |
| Absolute minimum temperature (°C) | -2.2 | -1.4 | -1.0 | 2.9 | 6.0 | 8.5 | 8.9 | 10.1 | 7.5 | 4.6 | 1.0 | -3.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 16.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.6 | 10.1 | 11.9 | 13.8 | 15.5 | 16.4 | 15.9 | 14.5 | 12.6 | 10.7 | 9.0 | 8.1 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 10.0 | 12.0 | 14.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 3.7 | 5.2 | 4.5 | 7.9 | 11.7 | 12.5 | 9.6 | 8.2 | 8.0 | 5.3 | 4.0 | 2.6 |
| Precipitation (mm) | 158 | 20 | 255 | 105 | 63 | 31 | 184 | 120 | 110 | 160 | 158 | 180 |
| Sunny days | 10 | 15 | 3 | 7 | 16 | 15 | 1 | 1 | 8 | 7 | 5 | 3 |
| Rainy days | 20 | 13 | 28 | 23 | 15 | 15 | 30 | 30 | 22 | 24 | 25 | 27 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit St Keyne during the most sunny months:
Months with the longest average daylight duration in St Keyne:
The largest precipitation sum in St Keyne is at