January weather forecast and climate
Castro Urdiales, Spain

Average sea temperature in January - Castro Urdiales, Spain
  • Average sea temperature in January: 13°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 January - Castro Urdiales, Spain
  • Average daylight in January: 9.4h

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

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