Last updated: August 27, 2025
In Svelvik, Norway, the average temperature in December hovers around 0°C (32°F). Be prepared for a chilly atmosphere, with minimum temperatures dropping to -13°C (9°F) and highs reaching up to 9°C (48°F). Expect notable precipitation, averaging 108 mm (4.3 in) over 16 days, alongside an impressive average humidity of 93%, creating a damp yet captivating winter experience.
In December in Svelvik, the average temperature is 0°C (32°F), with maximums reaching 9°C (48°F) and minimums dropping as low as -13°C (9°F). Travelers should be prepared for a chilly climate and pack accordingly for varying temperatures.
In Svelvik in December, the total precipitation amount is 108 mm (4.3 in), which falls over the course of 16 days.
In Svelvik in December, humidity is 93%. With an average temperature of 0°C (32°F), this humidity feels like a bone-chilling cold that seeps into your clothes, making every step outside feel damp and uncomfortable for traveling.
In Svelvik 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 Svelvik.
UV Risk Categories
Weather in Svelvik varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Svelvik, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (31°F) | 63 mm (2.5 inches) | 94% | low |
| February Weather | -1°C (31°F) | 69 mm (2.7 inches) | 92% | low |
| March Weather | 2°C (36°F) | 69 mm (2.7 inches) | 89% | moderate |
| April Weather | 6°C (44°F) | 35 mm (1.4 inches) | 82% | moderate |
| May Weather | 12°C (53°F) | 77 mm (3.0 inches) | 73% | moderate |
| June Weather | 17°C (63°F) | 84 mm (3.3 inches) | 71% | high |
| July Weather | 18°C (65°F) | 91 mm (3.6 inches) | 72% | high |
| August Weather | 17°C (62°F) | 81 mm (3.2 inches) | 77% | moderate |
| September Weather | 13°C (56°F) | 111 mm (4.4 inches) | 86% | moderate |
| October Weather | 8°C (47°F) | 127 mm (5.0 inches) | 92% | low |
| November Weather | 3°C (38°F) | 105 mm (4.1 inches) | 93% | low |
| December Weather | 0°C (32°F) | 108 mm (4.3 inches) | 93% | low |