December weather forecastFlateyri, Iceland
December
Weather in December
December, the first month of the winter in Flateyri, is also a wintry month, with an average temperature fluctuating between 0.2°C (32.4°F) and -2.9°C (26.8°F).Temperature
At the onset of December, Flateyri records an average high-temperature of a still cold 0.2°C (32.4°F), showing little deviation from the preceding month. Nighttime in Flateyri, Iceland, during December, brings an average low of -2.9°C (26.8°F), a modest reduction from the day's peak.Humidity
In Flateyri, the average relative humidity in December is 84%.Rainfall
In December, the rain falls for 9.3 days. Throughout December, 92mm (3.62") of precipitation is accumulated. Throughout the year, in Flateyri, there are 169 rainfall days, and 830mm (32.68") of precipitation is accumulated.Snowfall
Months with snowfall in Flateyri are January through June, September through December. In Flateyri, during December, snow falls for 12.4 days and regularly aggregates up to 148mm (5.83") of snow. Throughout the year, there are 95.9 snowfall days, and 999mm (39.33") of snow is accumulated.Daylight
With an average of 3h and 6min of daylight, December has the shortest days of the year in Flateyri.On the first day of the month, sunrise is at 11:23 and sunset at 15:22. On the last day of December, in Flateyri, sunrise is at 12:03 and sunset at 15:11 GMT.
Sunshine
The average sunshine in December is 0.9h.UV index
January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 1 in December transforms into this advice:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Flateyri, Iceland
- Average high temperature in December: 0.2°C
The warmest month (with the highest average high temperature) is July (9.5°C).
The month with the lowest average high temperature is March (-0.2°C).
- Average low temperature in December: -2.9°C
The month with the highest average low temperature is July (6.8°C).
The coldest month (with the lowest average low temperature) is March (-3°C).
Average pressure in December
Flateyri, Iceland
- Average pressure in December: 999.8mbar
The month with the highest atmospheric pressure is June (1014.8mbar).
The month with the lowest atmospheric pressure is January (997.4mbar).
Average wind speed in December
Flateyri, Iceland
- Average wind speed in December: 29.6km/h
The windiest month (with the highest average wind speed) is December (29.6km/h).
The calmest month (with the lowest average wind speed) is June (15.7km/h).
Average humidity in December
Flateyri, Iceland
- Average humidity in December: 84%
The months with the highest relative humidity are January, February, August, September and October (85%).
The months with the lowest relative humidity are May and June (82%).
Average rainfall in December
Flateyri, Iceland
- Average rainfall in December: 92mm
The wettest month (with the highest rainfall) is January (101mm).
The driest month (with the least rainfall) is June (34mm).
Average rainfall days in December
Flateyri, Iceland
- Average rainfall days in December: 9.3 days
The month with the highest number of rainy days is September (21.7 days).
The month with the least rainy days is February (8.5 days).
Average snowfall in December
Flateyri, Iceland
- Average snowfall in December: 148mm
The month with the highest snowfall is March (203mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Flateyri, Iceland
- Average snowfall days in December: 12.4 days
The month with the highest number of snowfall days is March (18 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Flateyri, Iceland
- Average daylight in December: 3h and 6min
The month with the longest days is July (Average daylight: 21h and 0min).
The month with the shortest days is December (Average daylight: 3h and 6min).
- Average sunshine in December: 0h and 54min
The month with the most sunshine is August (Average sunshine: 6h and 30min).
The month with the least sunshine is June (Average sunshine: 0h and 24min).
Average sunshine days in December
Flateyri, Iceland
- Average sunshine days in December: 5.4 days
The month with the most sunshine days is June (13.9 days).
The month with the least sunshine days is March (3.5 days).
Average UV index in December
Flateyri, Iceland
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 3).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in December
Flateyri, Iceland
- Average cloud cover in December: 74
The month with the most cloud cover is March (Cloud cover 79).
The month with the least cloud cover is June (Cloud cover 61).
Average visibility in December
Flateyri, Iceland
- Average visibility in December: 8km
The months with the highest visibility are May, June, July, August and September (9km).
The month with the lowest visibility is March (7km).
