May weather forecastRuncorn, United Kingdom
May
Weather in May
Sea temperature
In Runcorn, United Kingdom, in May, the average water temperature is 10.9°C (51.6°F).Note: Danger awaits those who swim in 10.9°C (51.6°F) without protection. Falling below 10°C (50°F) means intense cold shock and hyperventilation.
Daylight
The average length of the day in May is 15h and 54min.On the first day of the month, sunrise is at 5:35 am and sunset at 8:40 pm. On the last day of May, sunrise is at 4:49 am and sunset at 9:27 pm BST.
Updated: Jul 11, 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
In May, the average sea temperature is 10.9°C (51.6°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.
In May, the average day length is 15h and 54min.
In May, on the first day of the month, sunrise is at 5:35 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 4:49 am and sunset at 9:27 pm BST.
Average sea temperature in May
Runcorn, United Kingdom
- Average sea temperature in May: 10.9°C
The best month for swimming (with the highest average sea temperature) is August (16.7°C).
The coldest months (with the lowest average sea temperature) are February and March (7.4°C).
Average daylight in May
Runcorn, United Kingdom
- Average daylight in May: 15h and 54min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
