May weather forecast
Úlfsá, Iceland

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Weather in May

With May comes a marked change in Úlfsá's weather as the mercury climbs to a high of 4.6°C (40.3°F). A substantial decrease in snowfall to only 54mm (2.13") offers a respite from the long, wintry spell. The rising temperatures and blossoming flowers breathe life into the city, releasing it from the clutches of winter. The increased daylight and warming temperatures come together to introduce a pleasant change.

Temperature

May in Úlfsá signals a minor shift in the average high-temperature, moving from April's 1.3°C (34.3°F) to a still icy 4.6°C (40.3°F). May sees a slight dip to an average low temperature of 1.1°C (34°F) from the daytime highs.

Humidity

The average relative humidity in May in Úlfsá is 83%.

Rainfall

In Úlfsá, in May, it is raining for 12.3 days, with typically 40mm (1.57") 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

January through June, August through December are months with snowfall. In May, in Úlfsá, it is snowing for 6.6 days. Throughout May, 54mm (2.13") of snow is accumulated. In Úlfsá, during the entire year, snow falls for 96.2 days and aggregates up to 1214mm (47.8") of snow.

Sea temperature

In Úlfsá, the average seawater temperature in May is 4°C (39.2°F).
Note: In the water-based sport of swimming, this state is life-threatening and exceedingly dangerous. The freezing water causes severe discomfort, leading to rapid hyperventilation. A specialized swimsuit is compulsory to avert thermal damage.

Daylight

In May, the average length of the day is 19h and 24min.
On the first day of May in Úlfsá, sunrise is at 04:46 and sunset at 22:13. On the last day of the month, sunrise is at 02:42 and sunset at 00:18 GMT.

Sunshine

The average sunshine in May in Úlfsá is 5.4h.

UV index

In May, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 2 during May translates into the following directions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Frequently asked questions

How cold does it get in Úlfsá in May?

The average high-temperature and low-temperature in Úlfsá during May are 4.6°C (40.3°F) and 1.1°C (34°F) respectively.

What is the average humidity in May in Úlfsá?

In Úlfsá, Iceland, the average relative humidity in May is 83%.

How many days does it rain in May in Úlfsá?

In Úlfsá, Iceland, in May, it is raining for 12.3 days, with typically 40mm (1.57") of accumulated precipitation.

How many days does it snow in May in Úlfsá?

In May, in Úlfsá, Iceland, it is snowing for 6.6 days. Throughout May, 54mm (2.13") of snow is accumulated.

What is the water temperature in May in Úlfsá?

In May, the average sea temperature in Úlfsá is 4°C (39.2°F). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

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

The average day length in May in Úlfsá, Iceland, is 19h and 24min.

When are sunrise and sunset in May in Úlfsá?

In May, on the first day of the month, sunrise is at 04:46 and sunset at 22:13. On the last day of the month, in Úlfsá, Iceland, sunrise is at 02:42 and sunset at 00:18 GMT.

How many hours of sunshine does Úlfsá have in May?

In Úlfsá, Iceland, the average sunshine duration in May is 5.4h.

How high is the UV index in May in Úlfsá?

The average daily maximum UV index in May is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation.
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 May
Úlfsá, Iceland

Average temperature in May - Úlfsá, Iceland
  • Average high temperature in May: 4.6°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 May: 1.1°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 May
Úlfsá, Iceland

Average pressure in May - Úlfsá, Iceland
  • Average pressure in May: 1013.1mbar

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 May
Úlfsá, Iceland

Average wind speed in May - Úlfsá, Iceland
  • Average wind speed in May: 17.6km/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 May
Úlfsá, Iceland

Average humidity in May - Úlfsá, Iceland
  • Average humidity in May: 83%

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 May
Úlfsá, Iceland

Average rainfall in May - Úlfsá, Iceland
  • Average rainfall in May: 40mm

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 May
Úlfsá, Iceland

Average rainfall days in May - Úlfsá, Iceland
  • Average rainfall days in May: 12.3 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 May
Úlfsá, Iceland

Average snowfall in May - Úlfsá, Iceland
  • Average snowfall in May: 54mm

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 May
Úlfsá, Iceland

Average snowfall days in May - Úlfsá, Iceland
  • Average snowfall days in May: 6.6 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 May
Úlfsá, Iceland

Average sea temperature in May - Úlfsá, Iceland
  • Average sea temperature in May: 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 May /
Average sunshine in May
Úlfsá, Iceland

Average daylight in May / Average sunshine in May - Úlfsá, Iceland
  • Average daylight in May: 19h and 2min

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 May: 5h and 2min

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 May
Úlfsá, Iceland

Average sunshine days in May - Úlfsá, Iceland
  • Average sunshine days in May: 12.4 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 May
Úlfsá, Iceland

Average UV index in May - Úlfsá, Iceland
  • Average UV index in May: 2

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 May
Úlfsá, Iceland

Average cloud cover in May - Úlfsá, Iceland
  • Average cloud cover in May: 67

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 May
Úlfsá, Iceland

Average visibility in May - Úlfsá, Iceland
  • Average visibility in May: 9km

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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