December · Iceland
Best time to visit Mývatn in December Weather, crowds & prices
Weather in Mývatn in December
Average temperature -9°C, 60 mm of rain, about 0 days with 6+ hours of sunshine and 95% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
1.5/10
Ranked #12 of 12 months
- Avg temp
- -9°C
- Rainfall
- 60 mm
- Humidity
- 95%
- Days with 6h+ sun
- 0
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
December in Mývatn scores 1.5/10 for nature and wildlife travel - ranked #12 of 12. Expect around -9°C, 60 mm of rain, and roughly 0 days with 6+ hours of sunshine this month.
Lake Mývatn is North Iceland’s volcanic wonderland-pseudocraters, lava labyrinths, and steaming geothermal baths. Best window: the short high-summer window when daylight peaks.
December in Mývatn: expect compromises
December sits at -9°C (16°F), firmly in deep-winter territory. Plan compact outdoor blocks with warm reset points between them rather than full days outside.
60 mm of water-equivalent precipitation makes this a snowy month at resort level; what falls stays as snow, with almost no days with 6+ hours of sunshine and 2.4 hours of daylight.
That is 1.5/10 on the same scale — 12th of 12 months, versus 7.1/10 for the best month here.
Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.
Budget for low-season pricing, and crowds are light for this destination.
If your dates are flexible, June is materially better in Mývatn — 5.6 points higher on the same scale.
Frequently asked
- What is the weather like in Mývatn in December?
- In December, Mývatn averages -9°C, 60 mm of rain, and about 0 days with 6+ hours of sunshine. Its climate-comfort score is 1.5/10.
- Is December a good time to visit Mývatn?
- December earns a 1.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Mývatn in December?
- Expect about 60 mm of rain in December. Average humidity is 95% and there are about 0 days with 6+ hours of sunshine.
Curated in Mývatn
Tickets & experiences
Things to do in Mývatn
Mývatn, Iceland. Live activities and tours from GetYourGuide, matched to this destination.