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

May weather forecast and climate
Cairnryan, United Kingdom

Sea temperature

In Cairnryan, United Kingdom, the average seawater temperature in May is 9.9°C (49.8°F).
Note: Swimming in 9.9°C (49.8°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.

Daylight

In Cairnryan, United Kingdom, the average length of the day in May is 16.2h.

How cold is the water in May in Cairnryan?

In Cairnryan, in May, the average water temperature is 9.9°C (49.8°F). Swimming in 9.9°C (49.8°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.

How many hours of daylight does Cairnryan have in May?

In Cairnryan, the average length of the day in May is 16.2h.
Average sea temperature in May - Cairnryan, United Kingdom
  • Average sea temperature in May: 9.9°C

Best months for swimming (with the highest average sea temperature) are August and September (14.3°C).
The coldest month (with the lowest average sea temperature) is March (7.8°C).

Average daylight in May - Cairnryan, United Kingdom
  • Average daylight in May: 16.2h

The month with the longest days is June (Average daylight: 17.3h).
The month with shortest days is December (Average daylight: 7.3h).