April weather forecast and climate
Úlfsá, Iceland

Weather in April

April is a cold spring month in Úlfsá, Iceland, with temperature in the range of an average high of 1.3°C (34.3°F) and an average low of -2.1°C (28.2°F).

Temperature

In Úlfsá, the average high-temperature is essentially the same as in March - a wintry 1.3°C (34.3°F). The average low-temperature, in Úlfsá, is -2.1°C (28.2°F).

Humidity

In Úlfsá, Iceland, the average relative humidity in April is 86%.

Rainfall

In Úlfsá, in April, it is raining for 10.7 days, with typically 58mm (2.28") of accumulated precipitation. In Úlfsá, Iceland, during the entire year, the rain falls for 124.6 days and collects up to 664mm (26.14") of precipitation.

Snowfall

Months with snowfall in Úlfsá are January through June, August through December. In Úlfsá, in April, snow falls for 14.3 days, with typically accumulated 157mm (6.18") of snow. In Úlfsá, during the entire year, snow falls for 96.2 days, and aggregates up to 1214mm (47.8") of snow.

Sea temperature

January through April, with an average sea temperature of 3°C (37.4°F), are months with the coldest seawater.
Note: For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

Daylight

In Úlfsá, the average length of the day in April is 15.5h.

Sunshine

In April, the average sunshine in Úlfsá is 4.4h.

UV index

Months with the lowest UV index in Úlfsá are January through April, October through December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 1 interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in April in Úlfsá?

The average relative humidity in April is 86%.

How much does it rain in Úlfsá in April?

In Úlfsá, Iceland, in April, during 10.7 rainfall days, 58mm (2.28") of precipitation is typically accumulated.

How much does it snow in Úlfsá in April?

In Úlfsá, in April, snow falls for 14.3 days, with typically accumulated 157mm (6.18") of snow.

What months are the sea coldest in Úlfsá?

January through April, with an average sea temperature of 3°C (37.4°F), are months with the coldest seawater.

How cold is the water in April in Úlfsá?

In April, the average sea temperature in Úlfsá, Iceland, is 3°C (37.4°F). For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

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

The average length of the day in April is 15.5h.

How many hours of sunshine does Úlfsá have in April?

The average sunshine in April in Úlfsá, Iceland, is 4.4h.

When is the lowest UV index in Úlfsá?

Months with the lowest UV index are January through April, October through December, with an average maximum UV index of 1.

What is the UV index reading in April in Úlfsá?

In Úlfsá, Iceland, the average daily maximum UV index in April is 1. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to the UV radiation.

Average temperature in April
Úlfsá, Iceland

Average temperature in April - Úlfsá, Iceland
  • Average high temperature in April: 1.3°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 April: -2.1°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 April
Úlfsá, Iceland

Average pressure in April - Úlfsá, Iceland
  • Average pressure in April: 1009.7mbar

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 April
Úlfsá, Iceland

Average wind speed in April - Úlfsá, Iceland
  • Average wind speed in April: 20.2km/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 April
Úlfsá, Iceland

Average humidity in April - Úlfsá, Iceland
  • Average humidity in April: 86%

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 April
Úlfsá, Iceland

Average rainfall in April - Úlfsá, Iceland
  • Average rainfall in April: 58mm

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 April
Úlfsá, Iceland

Average rainfall days in April - Úlfsá, Iceland
  • Average rainfall days in April: 10.7 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 April
Úlfsá, Iceland

Average snowfall in April - Úlfsá, Iceland
  • Average snowfall in April: 157mm

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 April
Úlfsá, Iceland

Average snowfall days in April - Úlfsá, Iceland
  • Average snowfall days in April: 14.3 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 April
Úlfsá, Iceland

Average sea temperature in April - Úlfsá, Iceland
  • Average sea temperature in April: 3°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 April /
Average sunshine in April
Úlfsá, Iceland

Average daylight in April / Average sunshine in April - Úlfsá, Iceland
  • Average daylight in April: 15.5h

The month with the longest days is June (Average daylight: 23.5h).
The month with the shortest days is December (Average daylight: 3.1h).

  • Average sunshine in April: 4.4h

The month with the most sunshine is August (Average sunshine: 5.8h).
The month with the least sunshine is June (Average sunshine: 0.4h).

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Average sunshine days in April
Úlfsá, Iceland

Average sunshine days in April - Úlfsá, Iceland
  • Average sunshine days in April: 7 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 April
Úlfsá, Iceland

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

The month with the highest UV index is July (UV index 3).
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 April
Úlfsá, Iceland

Average cloud cover in April - Úlfsá, Iceland
  • Average cloud cover in April: 74

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 April
Úlfsá, Iceland

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

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

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