Average annual temperature is 12.1 °C
Absolute maximum temperature: 24.7 °C
Absolute minimum temperature: -2.9 °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 St. Austell Bay
* Weather data for St. Austell Bay 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) | 13.1 | 12.5 | 13.7 | 15.5 | 21.5 | 24.5 | 20.9 | 21.0 | 24.7 | 20.6 | 15.1 | 13.8 |
| Average daytime temperature (°C) | 9.1 | 9.8 | 10.8 | 12.1 | 16.6 | 20.2 | 18.4 | 18.6 | 19.6 | 15.8 | 11.6 | 11.2 |
| Average temperature (°C) | 7.0 | 7.4 | 8.4 | 9.5 | 13.2 | 16.9 | 16.1 | 16.2 | 16.9 | 13.7 | 9.9 | 9.5 |
| Average night temperature (°C) | 4.3 | 4.8 | 6.2 | 6.9 | 9.7 | 13.5 | 13.7 | 13.8 | 14.0 | 11.5 | 8.0 | 7.5 |
| Absolute minimum temperature (°C) | -2.2 | 0.2 | -0.3 | 3.0 | 6.9 | 9.6 | 10.5 | 11.2 | 9.5 | 7.2 | 1.9 | -2.9 |
| 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 | 16.3 | 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) | 3.9 | 5.4 | 5.3 | 8.2 | 11.8 | 12.6 | 9.9 | 8.7 | 8.4 | 5.6 | 4.3 | 2.9 |
| Precipitation (mm) | 137 | 19 | 195 | 84 | 60 | 57 | 158 | 120 | 92 | 130 | 150 | 165 |
| Sunny days | 11 | 14 | 4 | 8 | 18 | 12 | 0 | 1 | 6 | 5 | 4 | 2 |
| Rainy days | 19 | 14 | 27 | 22 | 13 | 18 | 31 | 30 | 24 | 26 | 26 | 29 |
| Snow days | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit St. Austell Bay during the most sunny months:
Months with the longest average daylight duration in St. Austell Bay:
The largest precipitation sum in St. Austell Bay is at