Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Astillero, Spain

  • Average sea temperature in September: 20.4°C

The best month for swimming (with the highest average sea temperature) is August (21.2°C).
The coldest month (with the lowest average sea temperature) is February (12.7°C).

  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.4h).
The month with shortest days is December (Average daylight: 9h).