The temperatures in St Austell in May are usually low and can range between 10°C and 14°C.
You can expect about 3 to 8 days of rain in St Austell during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in St Austell in May 2025.
If you’re planning to visit St Austell in the near future, we highly recommend that you review the 14 day weather forecast for St Austell before you arrive.
Temperatures
14° / 10°
Rainy Days
5
Snowy Days
0
Dry Days
26
Rainfall
72
mm
Sun Hours
9.0
Hrs
