Last updated: August 23, 2025
In December, the average temperature in Bourgoin-Jallieu, France hovers around 5°C (41°F), with a minimum drop to -5°C (23°F) and a maximum rise to 17°C (62°F). Expect a fair amount of precipitation with 145 mm (5.7 in) over 16 days, contributing to an average humidity level of 90%. Stay prepared for a damp and chilly experience!
In December in Bourgoin-Jallieu, the average temperature is 5°C (41°F). The maximum can reach 17°C (62°F), while the minimum can drop to as low as -5°C (23°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both mild and chilly weather.
In Bourgoin-Jallieu in December, the precipitation amount is 145 mm (5.7 in) spread over 16 days, indicating a moderately wet period for the region.
In Bourgoin-Jallieu in December, humidity is 90%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that clings to your skin, making travel feel more strenuous as you navigate the cold air mixed with moisture, potentially leaving you feeling sluggish and uncomfortable.
In Bourgoin-Jallieu 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 Bourgoin-Jallieu, you can visit Hourly UV Index in Bourgoin-Jallieu.
UV Risk Categories
Weather in Bourgoin-Jallieu varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Bourgoin-Jallieu, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (38°F) | 76 mm (3.0 inches) | 91% | low |
| February Weather | 6°C (43°F) | 65 mm (2.6 inches) | 87% | moderate |
| March Weather | 9°C (48°F) | 78 mm (3.1 inches) | 84% | moderate |
| April Weather | 12°C (54°F) | 42 mm (1.7 inches) | 83% | high |
| May Weather | 16°C (61°F) | 117 mm (4.6 inches) | 78% | very high |
| June Weather | 21°C (70°F) | 78 mm (3.1 inches) | 75% | very high |
| July Weather | 23°C (74°F) | 59 mm (2.3 inches) | 72% | very high |
| August Weather | 23°C (73°F) | 49 mm (1.9 inches) | 63% | very high |
| September Weather | 18°C (65°F) | 48 mm (1.9 inches) | 73% | high |
| October Weather | 13°C (56°F) | 97 mm (3.8 inches) | 89% | moderate |
| November Weather | 7°C (45°F) | 97 mm (3.8 inches) | 90% | moderate |
| December Weather | 5°C (41°F) | 145 mm (5.7 inches) | 90% | low |