Weather in Iceland for December 2025
Expect heavy snowfall in Iceland during December, with an average of 20 snowy days.
In general, the average temperature in Iceland at the beginning of December is 1.4 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of -1.1 °C by the end of December.
Snow Forecast ❄️
Temperatures
Iceland in December average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  0° | 2  3° | 3  2° | 4  1° | 5  3° | 6  1° | 7  -0° |
| 8 2° | 9  3° | 10 1° | 11  3° | 12 3° | 13 2° | 14 2° |
| 15 2° | 16  2° | 17  2° | 18 2° | 19 2° | 20 3° | 21 2° |
| 22 -1° | 23 -1° | 24 1° | 25 0° | 26 -0° | 27 -0° | 28  -1° |
| 29 -3° | 30 -3° | 31 -1° |
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Temperatures trend during December in Iceland
December weather day by day
| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. | Sunny | 0° /-3° | 4.5 mm | 1.2 cm | |
| 2 Dec. | Heavy rain at times | 3° /-3° | 10.8 mm | 1.6 cm | |
| 3 Dec. | Patchy moderate snow | 2° /-2° | 5 mm | 2.9 cm | |
| 4 Dec. | Heavy snow | 1° /-2° | 3.3 mm | 2.4 cm | |
| 5 Dec. | Moderate or heavy rain shower | 3° /-2° | 7.3 mm | 1.6 cm | |
| 6 Dec. | Light freezing rain | 1° /-2° | 1.1 mm | 0 cm | |
| 7 Dec. | Overcast | 0° /-4° | 0 mm | 0 cm | |
| 8 Dec. | Sunny | 2° /-2° | 4.6 mm | 0 cm | |
| 9 Dec. | Moderate snow | 3° /-1° | 6.4 mm | 0.9 cm | |
| 10 Dec. | Sunny | 1° /-2° | 0.4 mm | 0.1 cm | |
| 11 Dec. | Patchy rain possible | 3° /-1° | 4 mm | 0.3 cm | |
| 12 Dec. | Patchy rain possible | 3° /0° | 4.1 mm | 0.1 cm | |
| 13 Dec. | Patchy rain possible | 2° /-1° | 7.1 mm | 0.5 cm | |
| 14 Dec. | Patchy rain possible | 2° /-2° | 5.6 mm | 0.3 cm | |
| 15 Dec. | Patchy rain possible | 2° /-1° | 4.5 mm | 0.6 cm | |
| 16 Dec. | Moderate or heavy snow showers | 2° /-1° | 6.4 mm | 1.8 cm | |
| 17 Dec. | Partly cloudy | 2° /-1° | 6.1 mm | 2.5 cm | |
| 18 Dec. | Overcast | 2° /-3° | 1 mm | 0.6 cm | |
| 19 Dec. | Overcast | 2° /-2° | 3.1 mm | 0.7 cm | |
| 20 Dec. | Overcast | 3° /-2° | 1.3 mm | 0.2 cm | |
| 21 Dec. | Light freezing rain | 2° /-3° | 0.5 mm | 0.1 cm | |
| 22 Dec. | Partly cloudy | -1° /-6° | 0.5 mm | 0.3 cm | |
| 23 Dec. | Overcast | -1° /-5° | 4.1 mm | 0.4 cm | |
| 24 Dec. | Moderate or heavy rain shower | 1° /-4° | 7.6 mm | 1.2 cm | |
| 25 Dec. | Partly cloudy | 0° /-4° | 4 mm | 0 cm | |
| 26 Dec. | Light freezing rain | 0° /-5° | 7.2 mm | 2.9 cm | |
| 27 Dec. | Overcast | 0° /-4° | 4.2 mm | 1.9 cm | |
| 28 Dec. | Cloudy | -1° /-6° | 0.8 mm | 0 cm | |
| 29 Dec. | Sunny | -3° /-8° | 1.4 mm | 0.7 cm | |
| 30 Dec. | Partly cloudy | -3° /-7° | 2.5 mm | 1.8 cm | |
| 31 Dec. | Overcast | -1° /-6° | 1.9 mm | 0.8 cm | |
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Guide for Iceland in December
In December, Iceland experiences cold and wintry weather, with varying conditions at the beginning and end of the month. At the start of December, the weather in Iceland is typically cold, with temperatures ranging from 0° to 5°.
The days are short, with only a few hours of daylight, and there is a high chance of snowfall, especially in the northern regions. Travelers can expect cloudy and overcast skies, with occasional strong winds adding to the chilly conditions.
Towards the end of December, the weather in Iceland becomes even colder, with temperatures dropping to -5° to 0°. The days are even shorter, and the country is often blanketed in snow, creating a picturesque winter wonderland.
The chances of experiencing the mesmerizing Northern Lights also increase as the month progresses, making it an exciting time for visitors seeking this natural spectacle.
Overall, December in Iceland offers a true winter experience, with stunning snowy landscapes and the potential for witnessing the awe-inspiring Northern Lights.
However, travelers should be prepared for cold temperatures and limited daylight hours, making it essential to pack appropriate winter clothing and plan activities accordingly.
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Iceland in December - FAQ
Iceland snow forecast December 2025
December rainfall patterns in Iceland
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