Kostelj Weather in December

December in Kostelj brings low temperatures around 7°C (45°F) during the day, dropping to 1°C (34°F) at night, with quite a bit of rainfall expected, averaging around 157 mm (6.2 in) for the month.

Rainfall in Kostelj in December

Past climate data indicates that roughly 15 days will see rain, totalling around 157 mm (6.2 in) for the month. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.

Temperature in Kostelj in December

Expect highs of 7°C (45°F) in Kostelj in December, with nights dropping to around 1°C (34°F). December is known for being in the winter season. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. With overnight lows of 1°C (34°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Kostelj in December

You can expect a moderate amount of sunlight, with approximately 100 hours. This means a pleasant mix of sun and overcast.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Kostelj. Our weather planner can help you explore destinations with more pleasant weather conditions.

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Check the conditions for any month of the year.

• January
• February
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• December

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

Kostelj Temperature in December

Min Temperature 1°C (34°F)  

Max Temperature 7°C (45°F)  

Chance of Rain 50%  

Precipitation 157 mm (6.2 in)  

Rainy days 15 days  

Humidity 66% *  

Sunshine 100 hours *  

Percentage Sunshine 39% *  

* Data from: Rijeka, Croatia (26 KM, 16 Miles).

What to Wear in Kostelj in December

Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Kostelj in December

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

Swimming

5/10

Cycling

4/10

Walking

4/10

Camping

3/10

Outdoor sports

4/10

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 Croatia, check out our Kostelj's climate page.

More climate data for Kostelj

Temperature Rainfall Sunshine Humidity

See the full Kostelj climate overview or explore weather in Croatia.