Castro Urdiales weather in January 2026

The temperatures in Castro Urdiales in January are quite cold with temperatures between 7°C and 11°C, warm clothes are a must.

You can expect rain for roughly half of the month of January in Castro Urdiales. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.

Please note that Castro Urdiales can expect a few days of snow in January.

Our weather forecast can give you a great sense of what weather to expect in Castro Urdiales in January 2026.

If you’re planning to visit Castro Urdiales in the near future, we highly recommend that you review the 14 day weather forecast for Castro Urdiales before you arrive.