Last updated: August 23, 2025
In December, the average temperature in Isola del Gran Sasso d'Italia, Italy sits at a brisk 5°C (42°F). Temperatures can dip as low as -6°C (21°F) and peak at 16°C (61°F), offering quite the range for outdoor enthusiasts. With an average precipitation of 100 mm (4.0 in) spread over 11 days, be prepared for a few wet spells. Plus, the average humidity is a high 86%, creating a cozy, albeit chilly atmosphere!
In December in Isola del Gran Sasso d'Italia, the average temperature is 5°C (42°F). The maximum can reach 16°C (61°F), and the minimum can be as low as -6°C (21°F). Visitors should be prepared for a mix of chilly and mild conditions, making it wise to pack layers for fluctuating temperatures.
In Isola del Gran Sasso d'Italia in December, the total precipitation amounts to 100 mm (4.0 in) over the course of 11 days.
In Isola del Gran Sasso d'Italia in December, humidity is 86%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that penetrates your layers, making outdoor activities quite uncomfortable and prompting you to seek warmth indoors more often.
In Isola del Gran Sasso d'Italia 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 Isola del Gran Sasso d'Italia, you can visit Hourly UV Index in Isola del Gran Sasso d'Italia.
UV Risk Categories
Weather in Isola del Gran Sasso d'Italia varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Isola del Gran Sasso d'Italia, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (38°F) | 82 mm (3.2 inches) | 85% | moderate |
| February Weather | 6°C (43°F) | 71 mm (2.8 inches) | 78% | moderate |
| March Weather | 7°C (45°F) | 97 mm (3.8 inches) | 69% | high |
| April Weather | 11°C (52°F) | 86 mm (3.4 inches) | 71% | very high |
| May Weather | 15°C (60°F) | 139 mm (5.5 inches) | 71% | very high |
| June Weather | 20°C (69°F) | 69 mm (2.7 inches) | 63% | very high |
| July Weather | 22°C (72°F) | 90 mm (3.6 inches) | 59% | very high |
| August Weather | 23°C (73°F) | 49 mm (1.9 inches) | 54% | very high |
| September Weather | 18°C (65°F) | 79 mm (3.1 inches) | 67% | very high |
| October Weather | 14°C (57°F) | 83 mm (3.3 inches) | 78% | high |
| November Weather | 10°C (50°F) | 151 mm (5.9 inches) | 84% | moderate |
| December Weather | 5°C (42°F) | 100 mm (4.0 inches) | 86% | low |