Last updated: August 23, 2025
In December, the average temperature in Jelgava, Latvia hovers around 0°C (33°F), with minimums dipping to -15°C (5°F) and maximums reaching up to 10°C (51°F). Expect 47 mm (1.8 in) of precipitation over approximately 12 days, contributing to an average humidity level of a brisk 93%.
In December in Jelgava, the average temperature is 0°C (33°F). Maximum temperatures can reach 10°C (51°F), while minimums can plummet to as low as -15°C (5°F). Be prepared for chilly weather and pack accordingly for your trip.
In Jelgava in December, the precipitation amount is 47 mm (1.8 in) over a period of 12 days.
In Jelgava in December, humidity is 93%. With an average temperature of 0°C (33°F), this humidity feels like an incredibly damp chill that seeps into your bones, making outdoor travel uncomfortable and challenging, as it creates a heavy atmosphere that can dampen your spirits and energy.
In Jelgava 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 Jelgava.
UV Risk Categories
Weather in Jelgava varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Jelgava, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 41 mm (1.6 inches) | 93% | low |
| February Weather | -1°C (30°F) | 35 mm (1.4 inches) | 91% | low |
| March Weather | 2°C (35°F) | 46 mm (1.8 inches) | 90% | moderate |
| April Weather | 7°C (44°F) | 37 mm (1.5 inches) | 87% | moderate |
| May Weather | 12°C (54°F) | 59 mm (2.3 inches) | 72% | high |
| June Weather | 18°C (64°F) | 57 mm (2.2 inches) | 76% | high |
| July Weather | 19°C (66°F) | 84 mm (3.3 inches) | 76% | high |
| August Weather | 18°C (64°F) | 79 mm (3.1 inches) | 80% | high |
| September Weather | 14°C (57°F) | 67 mm (2.6 inches) | 87% | moderate |
| October Weather | 9°C (48°F) | 65 mm (2.6 inches) | 91% | low |
| November Weather | 5°C (41°F) | 51 mm (2.0 inches) | 92% | low |
| December Weather | 0°C (33°F) | 47 mm (1.8 inches) | 93% | low |