Last updated: August 23, 2025
In December, the average temperature in Jonava, Lithuania hovers around 0°C (32°F). You can expect chilly conditions, with a minimum plunge to -15°C (5°F) and a warm maximum reaching 10°C (50°F). This month brings about 56 mm (2.2 in) of precipitation spread over 13 days, resulting in an average humidity of 95%. Be prepared for a damp and crisp atmosphere!
In December in Jonava, the average temperature is 0°C (32°F). Maximums can reach 10°C (50°F) and minimums can be as low as -15°C (5°F). It's advisable to pack warm clothing and prepare for chilly weather if you're planning to visit during this time.
In Jonava in December, the precipitation amount is 56 mm (2.2 in) over the course of 13 days.
In Jonava in December, humidity is 95%. With an average temperature of 0°C (32°F), this humidity feels like walking through a thick fog, making each breath feel heavy and damp, while the chill in the air adds an extra layer of discomfort for traveling.
In Jonava in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Jonava.
UV Risk Categories
Weather in Jonava varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Jonava, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (30°F) | 51 mm (2.0 inches) | 94% | low |
| February Weather | -1°C (30°F) | 38 mm (1.5 inches) | 92% | low |
| March Weather | 2°C (36°F) | 43 mm (1.7 inches) | 90% | moderate |
| April Weather | 7°C (45°F) | 43 mm (1.7 inches) | 86% | moderate |
| May Weather | 13°C (55°F) | 63 mm (2.5 inches) | 72% | high |
| June Weather | 18°C (65°F) | 57 mm (2.2 inches) | 74% | high |
| July Weather | 19°C (66°F) | 93 mm (3.7 inches) | 76% | high |
| August Weather | 18°C (65°F) | 85 mm (3.3 inches) | 74% | high |
| September Weather | 14°C (57°F) | 67 mm (2.6 inches) | 83% | moderate |
| October Weather | 9°C (48°F) | 66 mm (2.6 inches) | 91% | moderate |
| November Weather | 5°C (40°F) | 51 mm (2.0 inches) | 93% | low |
| December Weather | 0°C (32°F) | 56 mm (2.2 inches) | 95% | low |