April weather forecast
Reykjavík, Iceland

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The city buildings of Reykjavík, the capital city of Iceland, with a view of the sea, and a mountain with a snowy peak in the far distance
The city buildings of Reykjavík, the capital city of Iceland, with a view of the sea, and a mountain with a snowy peak in the far distance

Weather in April

By April, Reykjavík, Iceland starts experiencing milder weather conditions with the average high temperature rising to 4.9°C (40.8°F), with a reducing snowfall down to 22mm (0.87"), indicating weather nearing to spring. With daylight extending, warmth seeping into the ground, and signs of life proliferating, a sense of revival bestows over the city. The balance of temperate weather and icy remnants make April an ideal month for landscape and nature photography. As the snow finally begins to melt away, locals and visitors are greeted with breathtaking vistas. This transformation may very well make April the best time to experience the true beauty of Reykjavík.

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Temperature

Reykjavík experiences a transition to a still cold 4.9°C (40.8°F) in average high-temperatures with the arrival of April, not greatly differing from March's 2.3°C (36.1°F). Reykjavík's temperature during April nights registers a minor decrease to an average low of 1.2°C (34.2°F).

Humidity

In Reykjavík, the average relative humidity in April is 78%.

Rainfall

In Reykjavík, Iceland, in April, during 15 rainfall days, 36mm (1.42") of precipitation is typically accumulated. Throughout the year, there are 166.2 rainfall days, and 416mm (16.38") of precipitation is accumulated.

Snowfall

Months with snowfall in Reykjavík are January through May, October through December. In Reykjavík, during April, snow falls for 5.5 days and regularly aggregates up to 22mm (0.87") of snow. In Reykjavík, during the entire year, snow falls for 41.1 days and aggregates up to 309mm (12.17") of snow.

Sea temperature

In Reykjavík, in April, the average water temperature is 5.9°C (42.6°F).
Note: Being in 5.9°C (42.6°F) waters at 13°C (55.4°F) is discomforting, but anything below 10°C (50°F) can jeopardize breathing and induce cold shock, factoring in physical endurance.

Daylight

The average length of the day in April in Reykjavík is 15h and 9min.
On the first day of the month, sunrise is at 06:42 and sunset at 20:19. On the last day of April, sunrise is at 05:00 and sunset at 21:48 GMT.

Sunshine

In April, the average sunshine in Reykjavík is 5.2h.

UV index

In April, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In April, the maximum UV index of 2 suggests these recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

How cold is April in Reykjavík?

The average high-temperature, in April, in Reykjavík, is 4.9°C (40.8°F), while the average low-temperature is 1.2°C (34.2°F).

What is the average humidity in April in Reykjavík?

In Reykjavík, the average relative humidity in April is 78%.

How much does it rain in Reykjavík in April?

In Reykjavík, Iceland, in April, it is raining for 15 days, with typically 36mm (1.42") of accumulated precipitation.

How much does it snow in Reykjavík in April?

In Reykjavík, Iceland, during April, snow falls for 5.5 days and regularly aggregates up to 22mm (0.87") of snow.

What is the water temperature in April in Reykjavík?

In Reykjavík, in April, the average water temperature is 5.9°C (42.6°F). Swimming in 5.9°C (42.6°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

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

The average day length in April is 15h and 9min.

When are sunrise and sunset in April in Reykjavík?

On the first day of April in Reykjavík, Iceland, sunrise is at 06:42 and sunset at 20:19. On the last day of the month, sunrise is at 05:00 and sunset at 21:48 GMT.

How long on average sun shines in April in Reykjavík?

In April, the average sunshine duration in Reykjavík is 5.2h.

What is the UV index reading in April in Reykjavík?

In April, the average daily maximum UV index in Reykjavík, Iceland, is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Reykjavík, Iceland

Average temperature in April - Reykjavík, Iceland
  • Average high temperature in April: 4.9°C

The warmest month (with the highest average high temperature) is July (13.5°C).
The month with the lowest average high temperature is December (1.3°C).

  • Average low temperature in April: 1.2°C

The month with the highest average low temperature is July (9.1°C).
The coldest month (with the lowest average low temperature) is December (-2.4°C).

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Average pressure in April
Reykjavík, Iceland

Average pressure in April - Reykjavík, Iceland
  • Average pressure in April: 1008.9mbar

The month with the highest atmospheric pressure is June (1013.8mbar).
The month with the lowest atmospheric pressure is January (996.6mbar).

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Average wind speed in April
Reykjavík, Iceland

Average wind speed in April - Reykjavík, Iceland
  • Average wind speed in April: 22.1km/h

The windiest month (with the highest average wind speed) is February (24.9km/h).
The calmest months (with the lowest average wind speed) are June and July (14.9km/h).

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Average humidity in April
Reykjavík, Iceland

Average humidity in April - Reykjavík, Iceland
  • Average humidity in April: 78%

The months with the highest relative humidity are January, February and September (82%).
The month with the lowest relative humidity is May (75%).

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Average rainfall in April
Reykjavík, Iceland

Average rainfall in April - Reykjavík, Iceland
  • Average rainfall in April: 36mm

The wettest month (with the highest rainfall) is January (47mm).
The driest months (with the least rainfall) are June and July (25mm).

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Average rainfall days in April
Reykjavík, Iceland

Average rainfall days in April - Reykjavík, Iceland
  • Average rainfall days in April: 15 days

The month with the highest number of rainy days is September (17.8 days).
The month with the least rainy days is December (9.7 days).

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Average snowfall in April
Reykjavík, Iceland

Average snowfall in April - Reykjavík, Iceland
  • Average snowfall in April: 22mm

The month with the highest snowfall is March (100mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in April
Reykjavík, Iceland

Average snowfall days in April - Reykjavík, Iceland
  • Average snowfall days in April: 5.5 days

The month with the highest number of snowfall days is March (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in April
Reykjavík, Iceland

Average sea temperature in April - Reykjavík, Iceland
  • Average sea temperature in April: 5.9°C

The best month for swimming (with the highest average sea temperature) is July (11.4°C).
The coldest month (with the lowest average sea temperature) is March (5.1°C).

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Average daylight in April /
Average sunshine in April
Reykjavík, Iceland

Average daylight in April / Average sunshine in April - Reykjavík, Iceland
  • Average daylight in April: 15h and 1min

The month with the longest days is June (Average daylight: 20h and 54min).
The month with the shortest days is December (Average daylight: 4h and 24min).

  • Average sunshine in April: 5h and 1min

The month with the most sunshine is August (Average sunshine: 7h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

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Average sunshine days in April
Reykjavík, Iceland

Average sunshine days in April - Reykjavík, Iceland
  • Average sunshine days in April: 10.3 days

The month with the most sunshine days is December (14.1 days).
The month with the least sunshine days is September (8.8 days).

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Average UV index in April
Reykjavík, Iceland

Average UV index in April - Reykjavík, Iceland
  • Average UV index in April: 2

The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February and November (UV index 1).

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Average cloud cover in April
Reykjavík, Iceland

Average cloud cover in April - Reykjavík, Iceland
  • Average cloud cover in April: 68

The months with the most cloud cover are March and April (Cloud cover 68).
The months with the least cloud cover are August and December (Cloud cover 60).

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Average visibility in April
Reykjavík, Iceland

Average visibility in April - Reykjavík, Iceland
  • Average visibility in April: 9km

The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).

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Reykjavík, Iceland

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