Trieste Weather in December

December in Trieste brings low temperatures around 9°C (48°F) during the day, dropping to 3°C (37°F) at night, with quite a bit of rainfall expected, averaging around 127 mm (5 in) for the month.

Rainfall in Trieste in December

Based on our climate data of the past 30 years, about 12 days of rain are anticipated, with 127 mm (5 in) on average. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Trieste in December

December in Trieste brings typical temperatures with highs around 9°C (48°F) and lows of 3°C (37°F). The winter season takes place during December. It stays cool throughout the day, so warm layers are a good idea from morning to evening. With overnight lows of 3°C (37°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Trieste in December

The month is characterized by fewer sunny days, with roughly 84 hours hours of sunshine. Ideal for those who prefer a cooler, cloudier climate.

Average water temperature in December

The water temperature is only 11°C (52°F) this month, cold enough that most people will want to stay out. Hardy swimmers may manage a quick dip, but it won't be comfortable.

December in Trieste can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.