December weather forecastNjardvik, Iceland
December
Weather in December
Officially stepping into the heart of winter, Njardvik in December presents a formidable climate. The town braves icy temperatures, marking a difference from November’s manageable chill. With rainfall levels notching up to 112mm (4.41"), it adds to the existing chill pervading the environment. The sea temperature continues to decline validating the ongoing severity of winter. Additionally, the diminishing daylight hours identify December as one of the key winter months in the town of Njardvik, Iceland.Temperature
The months of January, February and December bring the lowest temperatures, averaging a high of 2°C (35.6°F).Rainfall
Throughout December, in Njardvik, Iceland, 112mm (4.41") of precipitation is accumulated. During the entire year, Njardvik aggregates up to 1076mm (42.36") of precipitation.Sea temperature
In December, the average sea temperature is 7.2°C (45°F).Note: With an efficient thermal swimsuit, one can navigate 7.2°C (45°F) even if it's colder than 10°C (50°F); otherwise, rapid cold shock and breathlessness might set in. Barely wading at 13°C (55.4°F) feels chilly.
Daylight
December has the shortest days of the year in Njardvik, Iceland, with an average of 4h and 30min of daylight.On the first day of the month, sunrise is at 10:47 and sunset at 15:51. On the last day of December, sunrise is at 11:19 and sunset at 15:47 GMT.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Njardvik, Iceland
- Average high temperature in December: 2°C
The warmest months (with the highest average high temperature) are July and August (12°C).
The months with the lowest average high temperature are January, February and December (2°C).
- Average low temperature in December: -1°C
The months with the highest average low temperature are July and August (8°C).
The coldest month (with the lowest average low temperature) is January (-2°C).
Average rainfall in December
Njardvik, Iceland
- Average rainfall in December: 112mm
The wettest month (with the highest rainfall) is October (114mm).
The driest months (with the least rainfall) are June and July (64mm).
Average sea temperature in December
Njardvik, Iceland
- Average sea temperature in December: 7.2°C
The best months for swimming (with the highest average sea temperature) are July and August (11.5°C).
The coldest month (with the lowest average sea temperature) is March (5.9°C).
Average daylight in December
Njardvik, Iceland
- Average daylight in December: 4h and 30min
The month with the longest days is June (Average daylight: 20h and 48min).
The month with the shortest days is December (Average daylight: 4h and 30min).





