Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
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: 11.8h

The month with the longest days is June (Average daylight: 17.7h).
The month with shortest days is December (Average daylight: 9.5h).