Isla Weather in December

Isla in December sees moderate daytime temperatures of 14°C (57°F) and nighttime lows of 9°C (48°F). Rainfall is fairly high this month at around 114 mm (4.5 in), so pack a rain jacket to stay dry.

Rainfall in Isla in December

Historically, approximately 19 days this month are expected to have rain, averaging 114 mm (4.5 in). Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.

Temperature in Isla in December

In December, Isla gets moderate temperatures, with highs of 14°C (57°F). Nights cool to around 9°C (48°F). December marks the winter season. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows around 9°C (48°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Isla in December

With limited sunshine this month, there are about 88 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.

Wind Speed in Isla in December

Wind speeds average 4 m/s (8 knots) during December. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

Average water temperature in December

The water is 13°C (55°F) this month — cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.

If you prefer dry days with pleasant temperatures, June, July, August and September typically offer 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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• January
• February
• March
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• May
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• December

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

Isla Temperature in December

Min Temperature 9°C (48°F)  

Max Temperature 14°C (57°F)  

Water Temperature 13°C (55°F) *  

Chance of Rain 62%  

Precipitation 114 mm (4.5 in)  

Rainy days 19 days  

Humidity 72% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 88 hours *  

Percentage Sunshine *  

* Data from: Santander, Spain (20 KM, 12 Miles).

What to Wear in Isla 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. Expect heavy rainfall, so bring good rain protection and waterproof bags. With water temperatures around 13°C (55°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.

What To Do in Isla 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 Isla's climate page.

More climate data for Isla

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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