United Kingdom
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Llandudno, United Kingdom

Sea temperature

In Llandudno, United Kingdom, the average seawater temperature in May is 10.9°C (51.6°F).
Note: Swimming in 10.9°C (51.6°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.


In May, the average length of the day is 15.9h.

What is the sea water temperature in May in Llandudno?

In Llandudno, United Kingdom, in May, the average water 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.

How many hours of daylight does Llandudno have in May?

The average length of the day in May in Llandudno is 15.9h.
Average sea temperature in May - Llandudno, United Kingdom
  • Average sea temperature in May: 10.9°C

The best month for swimming (with the highest average sea temperature) is August (16.3°C).
Coldest months (with the lowest average sea temperature) are February and March (7.7°C).

Average daylight in May - Llandudno, United Kingdom
  • Average daylight in May: 15.9h

The month with the longest days is June (Average daylight: 16.9h).
The month with shortest days is December (Average daylight: 7.6h).