Alderney
Guernsey
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
Alderney, Guernsey

Sea temperature

In Octubre, the average sea temperature in Alderney, Guernsey, is 16.3°C (61.3°F).
Note: For swimming, a surface water temperature of 16.3°C (61.3°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

In Octubre, the average length of the day in Alderney is 10.7h.

What is the sea temperature in Octubre in Alderney?

In Alderney, in Octubre, the average water temperature is 16.3°C (61.3°F). Swimming in 16.3°C (61.3°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

What is the average length of the day in Octubre in Alderney?

The average length of the day in Octubre in Alderney, Guernsey, is 10.7h.
Average sea temperature in October - Alderney, Guernsey
  • Average sea temperature in October: 16.3°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 October - Alderney, Guernsey
  • Average daylight in October: 10.7h

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