Last updated: August 23, 2025
In Kastel Stari, Croatia, the average temperature in December hovers around 10°C (51°F). Expect cooler days with minimum temperatures dipping to 2°C (36°F) and occasional warmth peaking at 17°C (62°F). With 189 mm (7.5 in) of precipitation spread across 16 days, it’s wise to keep an umbrella handy. The air can feel quite damp too, with an average humidity of 81%.
In December in Kastel Stari, the average temperature is 10°C (51°F). The maximum can reach 17°C (62°F), while the minimum can dip as low as 2°C (36°F). It's advisable to pack layers to comfortably enjoy your travels during this time.
In Kastel Stari in December, the precipitation amount is 189 mm (7.5 in) over the course of 16 days.
In Kastel Stari in December humidity is 81%. With an average temperature of 10°C (51°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and forcing you to seek shelter more often than not.
In Kastel Stari in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Kastel Stari, you can visit Hourly UV Index in Kastel Stari.
UV Risk Categories
Weather in Kastel Stari varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Kastel Stari, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 8°C (47°F) | 92 mm (3.6 inches) | 83% | low |
| February Weather | 10°C (50°F) | 87 mm (3.4 inches) | 76% | moderate |
| March Weather | 11°C (52°F) | 76 mm (3.0 inches) | 73% | high |
| April Weather | 14°C (57°F) | 67 mm (2.6 inches) | 75% | high |
| May Weather | 18°C (64°F) | 57 mm (2.2 inches) | 78% | very high |
| June Weather | 22°C (72°F) | 29 mm (1.1 inches) | 75% | very high |
| July Weather | 24°C (76°F) | 17 mm (0.7 inches) | 71% | very high |
| August Weather | 26°C (79°F) | 22 mm (0.9 inches) | 65% | very high |
| September Weather | 22°C (71°F) | 89 mm (3.5 inches) | 69% | high |
| October Weather | 17°C (64°F) | 94 mm (3.7 inches) | 76% | moderate |
| November Weather | 14°C (58°F) | 222 mm (8.7 inches) | 81% | moderate |
| December Weather | 10°C (51°F) | 189 mm (7.5 inches) | 81% | low |