St Austell Weather in May
With daytime temperatures of 16°C (61°F) and nighttime lows of 9°C (48°F), May in St Austell brings moderate temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 72 mm (2.8 in) falls on average.
Rainfall in St Austell in May
Expect around 14 days of rain based on historical data, with 72 mm (2.8 in) average. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in St Austell in May
Daytime highs in St Austell in May reach 16°C (61°F), with nights around 9°C (48°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights fall to 9°C (48°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in St Austell in May
The city usually sees around 222 hours of sunlight, indicating many sunny days — a great month for sightseeing.If you prefer enjoying temperate temperatures and rain-free days, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 May
Min Temperature
9°C (48°F)
Max Temperature
16°C (61°F)
Chance of Rain
48%
Precipitation
72 mm (2.8 in)
Rainy days
14 days
Sunshine
222 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in St Austell typically stay consistent throughout May, with daily highs averaging around 16°C (61°F). Nights are cool, with lows typically ranging from 7°C (45°F) to 10°C (50°F).
Average temperatures in May
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 May
Historical weather for St Austell in May
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 May
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in St Austell.
- The hottest May day on record in St Austell reached 30°C (86°F) (May 26, 2026).
- On May 17, 1996, St Austell saw its coldest May day with temperatures maxing out at 7°C (45°F).
- Nighttime temperatures dropped to 1°C (34°F) on May 6, 1979, marking the coldest May night on record.
- The wettest day in May St Austell was on May 2, 2003 with 29 mm (1.1 in) of precipitation.
Best Places in the United Kingdom in May
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 May →
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What to Wear in St Austell in May
The weather can swing between comfortable and chilly in May, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days. 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 May
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.
