Castro-Urdiales Weather in December

Castro-Urdiales in December sees moderate temperatures, with highs around 14°C (57°F) and overnight lows of 8°C (46°F). Rainfall is fairly high at around 116 mm (4.6 in) on average, so pack waterproofs just in case.

Rainfall in Castro-Urdiales in December

You can expect rain on around 18 days based on historical patterns, with 116 mm (4.6 in) average for the month. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in Castro-Urdiales in December

In December, expect moderate temperatures in Castro-Urdiales, with highs of 14°C (57°F) and lows of 8°C (46°F) at night. December is part of winter. Even when the weather is stable, mornings and evenings can still feel distinctly cool. At 8°C (46°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Castro-Urdiales in December

This month is characterized by fewer sunny days, with about 78 hours of sunshine. It's great for those who appreciate cooler, less sunny days.

For Castro-Urdiales itself, June, July, August and September generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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For a detailed overview over the year and the best time to visit Spain, check out our Castro-Urdiales's climate page.

Castro-Urdiales Temperature in December

Min Temperature 8°C (46°F)  

Max Temperature 14°C (57°F)  

Chance of Rain 60%  

Precipitation 116 mm (4.6 in)  

Rainy days 18 days  

Humidity 72% *  

Sunshine 78 hours *  

Percentage Sunshine *  

* Data from: Bilbao, Spain (26 KM, 16 Miles).

What to Wear in Castro-Urdiales in December

The weather can be unpredictable in December, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.

What To Do in Castro-Urdiales in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Cycling

5/10

Walking

5/10

Camping

3/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Spain, check out our Castro-Urdiales's climate page.

More climate data for Castro-Urdiales

Temperature Rainfall Sunshine Humidity

See the full Castro-Urdiales climate overview or explore weather in Spain.