Weather in May
Sea temperature
In Riec-sur-Belon, France, the average seawater temperature in May is 13.8°C (56.8°F).Note: Swimming in 13.8°C (56.8°F) poses a severe threat. Even short exposure to 13°C (55.4°F) is chilling, and going below 10°C (50°F) can cause breathing irregularities and intense cold shock, based on one's stamina.
Daylight
In Riec-sur-Belon, the average length of the day in May is 15h and 10min.On the first day of May in Riec-sur-Belon, sunrise is at 06:55 and sunset at 21:27. On the last day of the month, sunrise is at 06:20 and sunset at 22:04 CEST.
Frequently asked questions
What is the sea water temperature in May in Riec-sur-Belon?
In Riec-sur-Belon, France, the average seawater temperature in May is 13.8°C (56.8°F). Swimming in 13.8°C (56.8°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
How many hours of daylight does Riec-sur-Belon have in May?
In Riec-sur-Belon, the average day length in May is 15h and 10min.
When is the sunrise / sunset in May in Riec-sur-Belon?
In May, on the first day of the month, sunrise is at 06:55 and sunset at 21:27. On the last day of the month, in Riec-sur-Belon, sunrise is at 06:20 and sunset at 22:04 CEST.
Average sea temperature in May
Riec-sur-Belon, France
- Average sea temperature in May: 13.8°C
The best month for swimming (with the highest average sea temperature) is August (17.4°C).
The coldest months (with the lowest average sea temperature) are February and March (10.1°C).
Average daylight in May
Riec-sur-Belon, France
- Average daylight in May: 15h and 1min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
Riec-sur-Belon, France
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