Long-term weather forecast
Long-term weather forecast

February weather forecast and climate
Alderney, Guernsey

Sea temperature

In Alderney, Guernsey, the average seawater temperature in Febrero is 9.7°C (49.5°F).
Note: 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 Alderney, the average length of the day in Febrero is 10.1h.

How cold is the water in Febrero in Alderney?

In Febrero, the average sea temperature in Alderney is 9.7°C (49.5°F). Swimming in 9.7°C (49.5°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 Alderney have in Febrero?

The average length of the day in Febrero in Alderney, Guernsey, is 10.1h.
Average sea temperature in February - Alderney, Guernsey
  • Average sea temperature in February: 9.7°C

The best month for swimming (with the highest average sea temperature) is September (17.4°C).
The coldest month (with the lowest average sea temperature) is March (9.3°C).

Average daylight in February - Alderney, Guernsey
  • Average daylight in February: 10.1h

The month with the longest days is June (Average daylight: 16.2h).
The month with shortest days is December (Average daylight: 8.2h).