Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Entering December, the average high-temperature is recorded at a still icy 0.2°C (32.4°F), exhibiting a minimal shift from November's 1.6°C (34.9°F). In Hesteyri, the nighttime temperature shows a slight difference from the daytime high, averaging to a subzero cold -2.9°C (26.8°F) during December.Humidity
The average relative humidity in December in Hesteyri is 84%.Rainfall
In December, the rain falls for 9.3 days. Throughout December, 92mm (3.62") of precipitation is accumulated. In Hesteyri, during the entire year, the rain falls for 169 days and collects up to 830mm (32.68") of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Hesteyri, in December, during 12.4 snowfall days, 148mm (5.83") of snow is typically accumulated. Throughout the year, in Hesteyri, there are 95.9 snowfall days, and 999mm (39.33") of snow is accumulated.Daylight
The month with the shortest days in Hesteyri is December, with an average of 2h and 54min of daylight.On the first day of December in Hesteyri, Iceland, sunrise is at 11:26 and sunset at 15:14. On the last day of the month, sunrise is at 12:08 and sunset at 15:01 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 average individuals.Note: A maximum daily UV index of 1 during December morphs into the following directions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
How cold is it in Hesteyri in December?
What is the average humidity in December in Hesteyri?
How much does it rain in Hesteyri in December?
How many days does it snow in December in Hesteyri?
What is the month with the shortest days in Hesteyri?
How many hours of daylight does Hesteyri have in December?
When are sunrise and sunset in December in Hesteyri?
How long on average sun shines in December in Hesteyri?
What are the months with the lowest UV index in Hesteyri?
What is the UV index intensity in December in Hesteyri?
Average temperature in December
Hesteyri, 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
Hesteyri, 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
Hesteyri, 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
Hesteyri, 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
Hesteyri, 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
Hesteyri, 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
Hesteyri, 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
Hesteyri, 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
Hesteyri, Iceland
- Average daylight in December: 2h and 5min
The month with the longest days is May (Average daylight: 19h and 36min).
The month with the shortest days is December (Average daylight: 2h and 54min).
- Average sunshine in December: 0h and 5min
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
Hesteyri, 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
Hesteyri, 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
Hesteyri, 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
Hesteyri, 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).
Hesteyri, Iceland
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