Weather in January
In Saint Austell, United Kingdom, in January, the average water temperature is 10.4°C (50.7°F). Note: Beware when you're in 10.4°C (50.7°F) waters; 13°C (55.4°F) is chilling and anything below 10°C (50°F) could cause breathing hindrance and a sudden cold shock, given your physical condition. Weather in January »
Weather in February
In Saint Austell, United Kingdom, the average seawater temperature in February is 10.1°C (50.2°F). Note: Diving into 10.1°C (50.2°F) when it's under 10°C (50°F) can cause immediate cold shock symptoms, marked by hyperventilation. Weather in February »
Weather in March
The month with the coldest seawater in Saint Austell, United Kingdom, is March, with an average sea temperature of 9.8°C (49.6°F). Note: Swimming at temperatures less than 10°C (50°F) in 9.8°C (49.6°F) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. Weather in March »
Weather in April
In Saint Austell, United Kingdom, the average seawater temperature in April is 10.6°C (51.1°F). Note: Diving into 10.6°C (51.1°F) when it's under 10°C (50°F) can cause immediate cold shock symptoms, marked by hyperventilation. Weather in April »
Weather in May
In Saint Austell, United Kingdom, the average seawater temperature in May is 11.8°C (53.2°F). Note: If planning to swim in 11.8°C (53.2°F) under 10°C (50°F), wear a protective suit. Weather in May »
Weather in June
In June, the average sea temperature in Saint Austell, United Kingdom, is 13.9°C (57°F). Note: Taking a dip in 13.9°C (57°F) can be perilous. Submersion in temperatures under 10°C (50°F) triggers severe cold shock accompanied by hyperventilation. Weather in June »
Weather in July
In July, the average sea temperature in Saint Austell, United Kingdom, is 16.3°C (61.3°F). Note: In water with a temperature of 16.3°C (61.3°F), most individuals do not find swimming enjoyable. Weather in July »
Weather in August
August is the month with the warmest seawater in Saint Austell, United Kingdom, with an average sea temperature of 17°C (62.6°F). Note: When the surface water temperature is 17°C (62.6°F), most do not enjoy swimming. Weather in August »
Weather in September
In Saint Austell, United Kingdom, the average seawater temperature in September is 16.2°C (61.2°F). Note: For most people, a water temperature of 16.2°C (61.2°F) is not conducive to enjoyable swimming. Weather in September »
Weather in October
In Saint Austell, United Kingdom, the average seawater temperature in October is 14.6°C (58.3°F). Note: Diving into 14.6°C (58.3°F) when it's under 10°C (50°F) can cause immediate cold shock symptoms, marked by hyperventilation. Weather in October »
Weather in November
In Saint Austell, United Kingdom, the average seawater temperature in November is 13.3°C (55.9°F). Note: With an efficient thermal swimsuit, one can navigate 13.3°C (55.9°F) even if it's colder than 10°C (50°F); otherwise, rapid cold shock and breathlessness might set in. Weather in November »
Weather in December
In Saint Austell, United Kingdom, the average seawater temperature in December is 11.9°C (53.4°F). Note: With the appropriate swimsuit, one can swim in 11.9°C (53.4°F) even if temperatures dip below 10°C (50°F); otherwise, be ready for cold shock and breath issues. Weather in December »
[Resources]Frequently asked questions
What month is the sea coldest in Saint Austell?
With an average sea temperature of 9.8°C (49.6°F), March is the month with the coldest seawater in Saint Austell, United Kingdom.
When are the longest days in Saint Austell?
June has the longest days of the year in Saint Austell, United Kingdom, with an average of 16h and 24min of daylight.
What month is the sea warmest in Saint Austell?
With an average sea temperature of 17°C (62.6°F), August is the month with the warmest seawater.
When is Daylight Saving Time (DST) in Saint Austell?
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends in Saint Austell, United Kingdom, and the time zone changes from BST to GMT. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 1:00 am, and the time zone reverts from GMT to BST.
What is the month with the shortest days in Saint Austell?
The month with the shortest days in Saint Austell is December, with an average of 8h and 6min of daylight.
Average sea temperature
Saint Austell, United Kingdom
The best month for swimming (with the highest average sea temperature) is August (17°C).
The coldest month (with the lowest average sea temperature) is March (9.8°C).
Average daylight
Saint Austell, United Kingdom
- Average daylight in January:
8h and 4min - Average daylight in February:
10h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 5min - Average daylight in May:
15h and 3min - Average daylight in June:
16h and 2min
- Average daylight in July:
15h and 5min - Average daylight in August:
14h and 2min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 4min - Average daylight in November:
9h and 0min - Average daylight in December:
8h and 1min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
Saint Austell, United Kingdom
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