Last updated: August 23, 2025
In December, the average temperature in Grenaa, Denmark hovers around 5°C (41°F), with a chill that can drive minimums down to an icy -2°C (29°F), while highs reach a mild 10°C (50°F). Expect precipitation to total 78 mm (3.1 in) over approximately 16 days, contributing to an atmospheric humidity level of 91%—perfect for cozy indoor activities!
In December in Grenaa, the average temperature is 5°C (41°F), with maximums reaching 10°C (50°F) and minimums dropping as low as -2°C (29°F). It's a time when travelers should prepare for chilly weather and pack accordingly to enjoy their visit comfortably.
In Grenaa in December, the precipitation amount is 78 mm (3.1 in) over the course of 16 days.
In Grenaa in December humidity is 91%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making traveling outdoors a rather uncomfortable experience unless you're dressed warmly and prepared for the moist air that clings to your skin.
In Grenaa 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 Grenaa.
UV Risk Categories
Weather in Grenaa varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Grenaa, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 58 mm (2.3 inches) | 92% | low |
| February Weather | 3°C (38°F) | 54 mm (2.1 inches) | 91% | low |
| March Weather | 4°C (39°F) | 54 mm (2.1 inches) | 89% | moderate |
| April Weather | 7°C (44°F) | 34 mm (1.3 inches) | 84% | moderate |
| May Weather | 11°C (52°F) | 60 mm (2.4 inches) | 75% | high |
| June Weather | 16°C (61°F) | 50 mm (2.0 inches) | 73% | high |
| July Weather | 17°C (64°F) | 63 mm (2.5 inches) | 73% | high |
| August Weather | 18°C (64°F) | 84 mm (3.3 inches) | 77% | high |
| September Weather | 15°C (60°F) | 88 mm (3.5 inches) | 85% | moderate |
| October Weather | 12°C (54°F) | 104 mm (4.1 inches) | 91% | moderate |
| November Weather | 8°C (47°F) | 67 mm (2.6 inches) | 92% | low |
| December Weather | 5°C (41°F) | 78 mm (3.1 inches) | 91% | low |