Usually average temperatures are St Austell in the time of August is 14. Average highs are typically 19 with low of 13 degrees. For more context we have put some more information below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 14 |
| High Temperature | 19 |
| Low Temperature | 13 |
Useful Links: St Austell Weather: Average Weather & Yearly Climate