December weather forecast
Úlfsá, Iceland

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Weather in December

December brings the peak of winter to Úlfsá, embracing cold temperatures with averages between -0.9°C and -4.3°C. Climbing significantly from November, December sees a snowfall of 170mm, turning the city into a winter wonderland. The shortest daylight hours mark the longest nights, and the glow of festive lights fights against the dark, filling the icy air with warmth and joy.

Temperature

December in Úlfsá, Iceland, brings an average high-temperature of a subzero cold -0.9°C, nearly identical to the preceding month. In December, Úlfsá temperatures settle at a low of -4.3°C during the nights, reflecting a minor change from daytime highs.

Humidity

January, February, October and December, with an average relative humidity of 88%, are the most humid months.

Rainfall

In Úlfsá, in December, during 6.5 rainfall days, 81mm of precipitation is typically accumulated. Throughout the year, in Úlfsá, there are 124.6 rainfall days, and 664mm of precipitation is accumulated.

Snowfall

January through June, August through December are months with snowfall in Úlfsá. In December, in Úlfsá, it is snowing for 12 days. Throughout December, 170mm of snow is accumulated. Throughout the year, in Úlfsá, there are 96.2 snowfall days, and 1214mm of snow is accumulated.

Sea temperature

In Úlfsá, in December, the average water temperature is 4°C.
Note: In swimming situations, this is a grave threat to life. The intense coldness of the water triggers extreme discomfort and rapid hyperventilation. A specialized swimsuit is required to mitigate thermal damage.

Daylight

With an average of 3h and 6min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 11:19 and sunset at 15:23. On the last day of December, in Úlfsá, sunrise is at 12:03 and sunset at 15:07 GMT.

Sunshine

In December, the average sunshine is 0.9h.

UV index

January through April, October through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 1 in December translates into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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FAQ

How cold is it in Úlfsá in December?

December temperatures in Úlfsá, Iceland, vary between a high-temperature of -0.9°C and a low-temperature of -4.3°C.

What are the most humid months in Úlfsá?

The months with the highest humidity in Úlfsá are January, February, October and December, with an average relative humidity of 88%.

What is the average humidity in December in Úlfsá?

The average relative humidity in December is 88%.

How many days does it rain in December in Úlfsá?

In December, in Úlfsá, Iceland, the rain falls for 6.5 days. Throughout December, 81mm of precipitation is accumulated.

How many days does it snow in December in Úlfsá?

In Úlfsá, Iceland, during December, snow falls for 12 days and regularly aggregates up to 170mm of snow.

What is the sea temperature in December in Úlfsá?

In Úlfsá, Iceland, in December, the average water temperature is 4°C. For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

What is the month with the shortest days in Úlfsá?

December has the shortest days of the year in Úlfsá, with an average of 3h and 6min of daylight.

What is the average length of the day in December in Úlfsá?

In Úlfsá, Iceland, the average day length in December is 3h and 7min.

When are sunrise and sunset in December in Úlfsá?

On the first day of December in Úlfsá, sunrise is at 11:19 and sunset at 15:23. On the last day of the month, sunrise is at 12:03 and sunset at 15:07 GMT.

How long on average sun shines in December in Úlfsá?

In Úlfsá, the average sunshine duration in December is 0.9h.

What are the months with the lowest UV index in Úlfsá?

The months with the lowest UV index in Úlfsá are January through April, October through December, with an average maximum UV index of 1.

What is the UV index intensity in December in Úlfsá?

In Úlfsá, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Úlfsá, Iceland

Average temperature in December - Úlfsá, Iceland
  • Average high temperature in December: -0.9°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 (-1°C).

  • Average low temperature in December: -4.3°C

The month with the highest average low temperature is July (6.3°C).
The coldest month (with the lowest average low temperature) is December (-4.3°C).

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Average pressure in December
Úlfsá, Iceland

Average pressure in December - Úlfsá, Iceland
  • Average pressure in December: 999.7mbar

The month with the highest atmospheric pressure is June (1014.7mbar).
The month with the lowest atmospheric pressure is January (997.3mbar).

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Average wind speed in December
Úlfsá, Iceland

Average wind speed in December - Úlfsá, Iceland
  • Average wind speed in December: 25.2km/h

The windiest months (with the highest average wind speed) are February and December (25.2km/h).
The calmest month (with the lowest average wind speed) is June (13.4km/h).

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Average humidity in December
Úlfsá, Iceland

Average humidity in December - Úlfsá, Iceland
  • Average humidity in December: 88%

The months with the highest relative humidity are January, February, October and December (88%).
The month with the lowest relative humidity is June (81%).

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Average rainfall in December
Úlfsá, Iceland

Average rainfall in December - Úlfsá, Iceland
  • Average rainfall in December: 81mm

The wettest month (with the highest rainfall) is January (88mm).
The driest month (with the least rainfall) is June (20mm).

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Average rainfall days in December
Úlfsá, Iceland

Average rainfall days in December - Úlfsá, Iceland
  • Average rainfall days in December: 6.5 days

The month with the highest number of rainy days is September (17.6 days).
The month with the least rainy days is December (6.5 days).

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Average snowfall in December
Úlfsá, Iceland

Average snowfall in December - Úlfsá, Iceland
  • Average snowfall in December: 170mm

The month with the highest snowfall is March (249mm).
The month with the least snowfall is July (0mm).

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Average snowfall days in December
Úlfsá, Iceland

Average snowfall days in December - Úlfsá, Iceland
  • Average snowfall days in December: 12 days

The month with the highest number of snowfall days is March (17.5 days).
The month with the least snowfall days is July (0 days).

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Average sea temperature in December
Úlfsá, Iceland

Average sea temperature in December - Úlfsá, Iceland
  • Average sea temperature in December: 4°C

The best months for swimming (with the highest average sea temperature) are July and August (7°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (3°C).

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Average daylight in December /
Average sunshine in December
Úlfsá, Iceland

Average daylight in December / Average sunshine in December - Úlfsá, Iceland
  • Average daylight in December: 3h and 1min

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 5min

The month with the most sunshine is August (Average sunshine: 5h and 48min).
The month with the least sunshine is June (Average sunshine: 0h and 24min).

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Average sunshine days in December
Úlfsá, Iceland

Average sunshine days in December - Úlfsá, Iceland
  • Average sunshine days in December: 8.8 days

The month with the most sunshine days is June (18 days).
The month with the least sunshine days is February (6.7 days).

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Average UV index in December
Úlfsá, Iceland

Average UV index in December - Úlfsá, Iceland
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 3).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).

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Average cloud cover in December
Úlfsá, Iceland

Average cloud cover in December - Úlfsá, Iceland
  • Average cloud cover in December: 77

The month with the most cloud cover is March (Cloud cover 81).
The month with the least cloud cover is June (Cloud cover 65).

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Average visibility in December
Úlfsá, Iceland

Average visibility in December - Úlfsá, Iceland
  • Average visibility in December: 8km

The months with the highest visibility are May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, April, November and December (8km).

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Úlfsá, Iceland

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