May
Weather in May
Sea temperature
In Pwllheli, United Kingdom, the average seawater temperature in May is 10.8°C (51.4°F).Note: With the appropriate swimsuit, one can swim in 10.8°C (51.4°F) even if temperatures dip below 10°C (50°F); otherwise, be ready for cold shock and breath issues. A fleeting swim around 13°C (55.4°F) is distressing.
Daylight
The average length of the day in May in Pwllheli is 15h and 50min.On the first day of May, sunrise is at 5:43 am and sunset at 8:45 pm. On the last day of the month, sunrise is at 4:58 am and sunset at 9:31 pm BST.
Updated: Feb 8, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the sea water temperature in May in Pwllheli?
In Pwllheli, United Kingdom, in May, the average water temperature is 10.8°C (51.4°F). Swimming in 10.8°C (51.4°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 Pwllheli have in May?
The average day length in May in Pwllheli, United Kingdom, is 15h and 50min.
When is the sunrise / sunset in May in Pwllheli?
In May, on the first day of the month, sunrise is at 5:43 am and sunset at 8:45 pm. On the last day of the month, in Pwllheli, sunrise is at 4:58 am and sunset at 9:31 pm BST.
Average sea temperature in May
Pwllheli, United Kingdom
- Average sea temperature in May: 10.8°C
The best month for swimming (with the highest average sea temperature) is September (15.7°C).
The coldest months (with the lowest average sea temperature) are February and March (8.3°C).
Average daylight in May
Pwllheli, United Kingdom
- Average daylight in May: 15h and 5min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
