Castelldefels Weather in December

Castelldefels in December sees moderate temperatures, with highs around 15°C (59°F) and overnight lows of 8°C (46°F). Around 46 mm (1.8 in) of rainfall is typical, so a light rain jacket is a sensible addition to your bag.

Rainfall in Castelldefels in December

Typically, you can expect about 12 days of rain this month, with 46 mm (1.8 in) on average. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Castelldefels in December

In December, Castelldefels sees moderate temperatures, with highs of 15°C (59°F). Nights drop to around 8°C (46°F). December is typically considered a winter month. The difference between afternoon and evening temperatures is usually noticeable. Nights drop to 8°C (46°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Castelldefels in December

The area enjoys a balanced 137 hours of sunlight, ensuring it's neither too overcast nor too sunny.

Wind Speed in Castelldefels in December

Average wind conditions reach 3 m/s (6 knots) in December. This creates comfortable weather with light winds that gently move vegetation. Keep in mind this is an average. Daily conditions range from near-calm to more noticeable wind.

Average water temperature in December

The water temperature is 14°C (57°F) — chilly, but perfectly fine for a swim if you're not too sensitive to cold water. A short wetsuit can make longer sessions more comfortable.

December in Castelldefels has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

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

Castelldefels Temperature in December

Min Temperature 8°C (46°F)  

Max Temperature 15°C (59°F)  

Water Temperature 14°C (57°F) *  

Chance of Rain 41%  

Precipitation 46 mm (1.8 in)  

Rainy days 12 days  

Humidity 71% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 137 hours *  

Percentage Sunshine *  

* Data from: Barcelona, Spain (18 KM, 11 Miles).

What to Wear in Castelldefels in December

The weather can swing between comfortable and chilly in December, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days. Expect water temperatures of around 14°C (57°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Castelldefels in December

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

Swimming

5/10

Cycling

6/10

Walking

6/10

Camping

5/10

Outdoor sports

10/10

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 Castelldefels's climate page.

More climate data for Castelldefels

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Castelldefels climate overview or explore weather in Spain.