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

July weather forecast and climate
Alderney, Guernsey

  • Average sea temperature in July: 15.7°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).

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