Keflavík
December
Weather in Keflavík for December 2025
Your guide to Keflavík weather in December - trends and predictions
Expect heavy snowfall in Keflavík during December, with an average of 19 snowy days.
According to Keflavík snow forecast for December 2025, 1 snowy day is expected until the end of the month at Wednesday, 17 December.So far, December 2025 in Keflavík is slightly warmer than the historical average by 0.7 °C.
The forecast for the upcoming days in Keflavík predicts a temperature of 6.6 °C, which is slightly above the historical average.
In general, the average temperature in Keflavík at the beginning of December is 3.9 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 6.7 °C by the end of December.
Snow Forecast ❄️
Temperatures
3
Dry days
9
Rainy days
19
Snow days
3°/0°
Temperatures
48 km/h
Avg max wind
71 %
Avg humidity
Keflavík Weather December
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Temperatures trend during December in Keflavík
See the weather trend as well as the moving average line
December weather in Keflavík day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Dec. |  Sunny | 2° /0° | 0.7 mm | 0 cm | |
| 2 Dec. |  Overcast | 4° /-1° | 5.9 mm | 0.5 cm | |
| 3 Dec. |  Moderate snow | 4° /1° | 3.3 mm | 0.5 cm | |
| 4 Dec. |  Heavy snow | 4° /1° | 11.9 mm | 5 cm | |
| 5 Dec. |  Cloudy | 5° /1° | 6.2 mm | 3.4 cm | |
| 6 Dec. | Sunny | 4° /1° | 0.3 mm | 0.2 cm | |
| 7 Dec. |  Partly cloudy | 4° /2° | 0 mm | 0 cm | |
| 8 Dec. | Sunny | 6° /2° | 4.6 mm | 0 cm | |
| 9 Dec. | Sunny | 6° /2° | 1.7 mm | 0 cm | |
| 10 Dec. | Cloudy | 5° /3° | 0.4 mm | 0 cm | |
| 11 Dec. |  Moderate or heavy snow showers | 6° /3° | 7.3 mm | 0.2 cm | |
| 12 Dec. | Heavy snow | 6° /2° | 6.7 mm | 0.1 cm | |
| 13 Dec. |  Light sleet showers | 5° /2° | 7.8 mm | 0.3 cm | |
| 14 Dec. |  Blizzard | 6° /1° | 6.3 mm | 1 cm | |
| 15 Dec. | Light sleet showers | 4° /2° | 5.2 mm | 0.4 cm | |
| 16 Dec. | Light sleet showers | 5° /3° | 5.6 mm | 1.2 cm | |
| 17 Dec. |  Moderate rain | 5° /3° | 7.5 mm | 0.3 cm | |
| 18 Dec. |  Patchy rain possible | 5° /3° | 3.6 mm | 0 cm | |
| 19 Dec. | Sunny | 4° /3° | 0 mm | 0 cm | |
| 20 Dec. | Partly cloudy | 5° /5° | 0 mm | 0 cm | |
| 21 Dec. | Partly cloudy | 6° /4° | 0 mm | 0 cm | |
| 22 Dec. | Partly cloudy | 8° /7° | 0 mm | 0 cm | |
| 23 Dec. | Partly cloudy | 7° /6° | 0 mm | 0 cm | |
| 24 Dec. | Patchy rain possible | 7° /5° | 0 mm | 0 cm | |
| 25 Dec. | Patchy rain possible | 8° /3° | 1.3 mm | 0 cm | |
| 26 Dec. | Moderate rain | 8° /8° | 6.2 mm | 0 cm | |
| 27 Dec. | Patchy rain possible | 7° /7° | 0.2 mm | 0 cm | |
| 28 Dec. | Patchy rain possible | 7° /6° | 0.4 mm | 0 cm | |
| 29 Dec. | Patchy rain possible | 8° /7° | 1.3 mm | 0 cm | |
| 30 Dec. | Patchy rain possible | 8° /7° | 0.7 mm | 0 cm | |
| 31 Dec. | Overcast | 1° /-1° | 5 mm | 0 cm | |
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Important Notice
Our weather forecast for Keflavík 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 Keflavík forecast closer to your planned date for the most up-to-date weather information.
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Keflavík in December - FAQ
What are the expected maximum and minimum temperatures in Keflavík during December?
Brace for cold days with temperatures not exceeding 3° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Keflavík during December?
Significant rainfall exceeding 167.3 mm is expected in Keflavík during December, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Keflavík in December 2025?
Keflavík experiences an average snowfall of 30.25 cm during December, occurring over 19 days.
What are the typical wind conditions in Keflavík during December?
The average wind speed in Keflavík during December is 48 km/h, suggesting breezy to windy conditions, depending on your activities.
Keflavík snow forecast December 2025
Track daily snowfall levels and discover Keflavík’s snowy potential this December ❄️
On average, Keflavík sees 19 snowy days during December, with approximately 30.3 cm of total snowfall.
December rainfall patterns in Keflavík
Explore the daily rainfall trends and prepare for Keflavíks December weather 💧
Typically, Keflavík has 9 rainy days in December with a total of 167.3 mm of rainfall.
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Where is Keflavík?Get accurate weather forecasts for Keflavík, located at latitude 64.005 and longitude -22.562. Stay updated with localized weather information tailored for Keflavík.
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