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

January weather forecast and climate
Cairnryan, United Kingdom

Sea temperature

In January, the average sea temperature in Cairnryan, United Kingdom, is 8.7°C (47.7°F).
Note: Swimming in 8.7°C (47.7°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

In January, the average length of the day is 7.9h.

How cold is the water in January in Cairnryan?

In January, the average sea temperature in Cairnryan is 8.7°C (47.7°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.

What is the average length of the day in January in Cairnryan?

In January, the average length of the day in Cairnryan, United Kingdom, is 7.9h.
Average sea temperature in January - Cairnryan, United Kingdom
  • Average sea temperature in January: 8.7°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 January - Cairnryan, United Kingdom
  • Average daylight in January: 7.9h

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