Kastav Weather in December

December in Kastav brings low temperatures around 7°C (45°F) during the day, dropping to 1°C (34°F) at night, and as part of the rainy season, heavy rainfall is common.

Rainfall in Kastav in December

Kastav is in the rainy season in December, with rain on around 14 days and an average of 171 mm (6.7 in). The rainy season here brings regular, substantial showers. It's worth being prepared for rain on most days you're out.

Temperature in Kastav in December

December in Kastav sees highs of 7°C (45°F) and lows of 1°C (34°F) overnight. The winter season is characteristic of December. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. 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 Kastav in December

The area enjoys a balanced 100 hours of sunlight, ensuring it's neither too rainy nor too sunny.

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 Kastav has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.

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

Kastav Temperature in December

Min Temperature 1°C (34°F)  

Max Temperature 7°C (45°F)  

Water Temperature 14°C (57°F) *  

Chance of Rain 47%  

Precipitation 171 mm (6.7 in)  

Rainy days 14 days  

Humidity 66% *  

Sunshine 100 hours *  

Percentage Sunshine 39% *  

* Data from: Rijeka, Croatia (5 KM, 3 Miles).

What to Wear in Kastav in December

Dress warmly and in layers for your trip to Kastav in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. It's going to pour! Pack a good poncho and prepare for very wet conditions. 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Kastav 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 Kastav's climate page.

More climate data for Kastav

Temperature Rainfall Sunshine Humidity Water Temp

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