St Austell Weather in August
August in St Austell sees daytime temperatures around 20°C (68°F) and lows of 14°C (57°F) at night. With around 78 mm (3.1 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in St Austell in August
Based on our climate data of the past 30 years, about 15 days of rain are anticipated, with 78 mm (3.1 in) on average. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in St Austell in August
August tends to be one of the perfect months in St Austell, with 20°C (68°F) in the afternoon and 14°C (57°F) overnight. August is known for being in the summer season. Conditions are often most pleasant around the middle of the day. With lows of 14°C (57°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest. On average, it has the peak temperatures of the year.
Sunshine in St Austell in August
The month enjoys around 202 hours of sunshine, creating mostly sunny days with good weather conditions.If you're a fan of comfortable temperatures and drier conditions, August is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United Kingdom, check out our St Austell's climate page.
St Austell Temperature in August
Min Temperature
14°C (57°F)
Max Temperature
20°C (68°F)
Chance of Rain
49%
Precipitation
78 mm (3.1 in)
Rainy days
15 days
Sunshine
202 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in St Austell typically stay consistent throughout August, with daily highs averaging around 20°C (68°F). Nights are cool, with lows around 13°C (55°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for St Austell in August
Browse day-by-day weather records for St Austell spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
St Austell historical weather extremes in August
Based on weather observations in St Austell between 1976 and 2025, these are the recorded extremes during August.
- St Austell recorded its highest August temperature of 31°C (88°F) on August 13, 2022.
- The lowest daytime temperature in August was 13°C (55°F), recorded on August 26, 1986.
- Nighttime temperatures dropped to 8°C (46°F) on August 24, 2014, marking the coldest August night on record.
Best Places in the United Kingdom in August
Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month. See all of the United Kingdom in August →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in St Austell in August
For St Austell in August, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in St Austell in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United Kingdom, check out our St Austell's climate page.
See the full St Austell climate overview or explore weather in the United Kingdom.
