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.