Capital Region (Reykjavík)
December
Weather in Capital Region for December 2025
Your guide to Capital Region weather in December - trends and predictions
Capital Region is transformed into a snow paradise in December, with more than 20 snowy days on average.
According to Capital Region snow forecast for December 2025, no snow is expected until the end of the month.So far, December 2025 in Capital Region shows a warmer trend than usual by 2.2 °C.
The forecast for the next days in Capital Region predicts a temperature of 2.7 °C, which is cooler than the historical average.
In general, the average temperature in Capital Region at the beginning of December is 1.9 °C. As the month progressed, temperatures tended to remain steady, reaching an average of 1.9 °C by the end of December.
Snow Forecast ❄️
Temperatures
3
Dry days
4
Rainy days
24
Snow days
1°/-3°
Temperatures
29 km/h
Avg max wind
75 %
Avg humidity
Capital Region Weather December
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What’s the Weather Like in Capital Region This December?
Discover the average temperatures and weather trends across Capital Region’s cities this December.
Temperatures trend during December in Capital Region
See the weather trend as well as the moving average line
December weather in Capital Region day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. |  Sunny | 1° /-3° | 3.9 mm | 0.9 cm | |
| 2 Dec. |  Overcast | 3° /-2° | 8.7 mm | 1.3 cm | |
| 3 Dec. |  Patchy moderate snow | 2° /-2° | 4 mm | 2.3 cm | |
| 4 Dec. |  Heavy snow | 1° /-2° | 2.7 mm | 1.9 cm | |
| 5 Dec. |  Moderate or heavy rain shower | 3° /-2° | 6.6 mm | 1.2 cm | |
| 6 Dec. | Sunny | 2° /-2° | 0.9 mm | 0 cm | |
| 7 Dec. | Overcast | 1° /-3° | 0 mm | 0 cm | |
| 8 Dec. | Sunny | 2° /-1° | 3.8 mm | 0 cm | |
| 9 Dec. |  Moderate snow | 3° /0° | 5.3 mm | 0.7 cm | |
| 10 Dec. | Sunny | 1° /-2° | 0.3 mm | 0 cm | |
| 11 Dec. |  Light rain | 4° /0° | 4.3 mm | 0.2 cm | |
| 12 Dec. |  Patchy rain possible | 3° /0° | 5.1 mm | 0.1 cm | |
| 13 Dec. | Patchy rain possible | 3° /-1° | 6.6 mm | 0.7 cm | |
| 14 Dec. | Patchy rain possible | 3° /-1° | 5.5 mm | 0.5 cm | |
| 15 Dec. | Patchy rain possible | 2° /-1° | 3.8 mm | 0.5 cm | |
| 16 Dec. |  Moderate or heavy snow showers | 2° /-1° | 5.3 mm | 1.5 cm | |
| 17 Dec. | Moderate or heavy snow showers | 2° /0° | 7.3 mm | 2.4 cm | |
| 18 Dec. | Overcast | 2° /-2° | 1.4 mm | 0.7 cm | |
| 19 Dec. |  Cloudy | 2° /-2° | 2.6 mm | 0.6 cm | |
| 20 Dec. | Overcast | 3° /-1° | 1.7 mm | 0.2 cm | |
| 21 Dec. | Overcast | 2° /-2° | 0.4 mm | 0.1 cm | |
| 22 Dec. | Patchy rain possible | 1° /-4° | 1.9 mm | 0.2 cm | |
| 23 Dec. | Overcast | 1° /-4° | 5 mm | 0.4 cm | |
| 24 Dec. | Moderate or heavy rain shower | 2° /-2° | 9.7 mm | 1 cm | |
| 25 Dec. |  Partly cloudy | 2° /-3° | 4.1 mm | 0 cm | |
| 26 Dec. |  Light freezing rain | 1° /-4° | 7.6 mm | 2.8 cm | |
| 27 Dec. | Overcast | 1° /-3° | 3.5 mm | 1.6 cm | |
| 28 Dec. | Cloudy | 0° /-4° | 1.1 mm | 0 cm | |
| 29 Dec. | Sunny | -3° /-8° | 1.4 mm | 0.7 cm | |
| 30 Dec. | Patchy rain possible | 6° /4° | 0.2 mm | 0 cm | |
| 31 Dec. | Patchy rain possible | 6° /0° | 0.4 mm | 0 cm | |
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Important Notice
Our weather forecast for Capital Region in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Capital Region forecast closer to your planned date for the most up-to-date weather information.
Change Month
Capital Region in December - FAQ
What are the expected maximum and minimum temperatures in Capital Region during December?
Brace for cold days with temperatures not exceeding 1° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Capital Region during December?
Significant rainfall exceeding 121.4 mm is expected in Capital Region during December, occurring over more than 4 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Capital Region in December 2025?
Capital Region experiences an average snowfall of 28.197 cm during December, occurring over 24 days.
What are the typical wind conditions in Capital Region during December?
The average wind speed in Capital Region during December is 29 km/h, suggesting breezy to windy conditions, depending on your activities.
Capital Region snow forecast December 2025
Track daily snowfall levels and discover Capital Region’s snowy potential this December ❄️
On average, Capital Region sees 24 snowy days during December, with approximately 28.2 cm of total snowfall.
December rainfall patterns in Capital Region
Explore the daily rainfall trends and prepare for Capital Regions December weather 💧
Typically, Capital Region has 4 rainy days in December with a total of 121.4 mm of rainfall.
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