Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's onset in Akranes, Iceland, is marked by a subtle temperature increase, moving from a wintry 4.9°C (40.8°F) in April to a frosty 8.3°C (46.9°F). Akranes records a slight downturn in temperature to an average of 4.1°C (39.4°F) during May nights.Humidity
May is the least humid month, with an average relative humidity of 75%.Rainfall
In May, in Akranes, the rain falls for 15.5 days. Throughout May, 32mm (1.26") of precipitation is accumulated. In Akranes, during the entire year, the rain falls for 166.2 days and collects up to 416mm (16.38") of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 1.2 snowfall days, in May, Akranes aggregates 2mm (0.08") of snow. In Akranes, during the entire year, snow falls for 41.1 days and aggregates up to 309mm (12.17") of snow.Sea temperature
In Akranes, Iceland, in May, the average water temperature is 6.9°C (44.4°F).Note: Dipping into 6.9°C (44.4°F) below 10°C (50°F) needs protective wear, or you'd face cold shock and breathing issues swiftly. Meanwhile, a slight swim around 13°C (55.4°F) feels cold to the bone.
Daylight
In May, the average length of the day is 18h and 34min.On the first day of the month, sunrise is at 04:56 and sunset at 21:54. On the last day of May, sunrise is at 03:20 and sunset at 23:31 GMT.
Sunshine
In May, the average sunshine in Akranes is 7h.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 ordinary individuals.Note: In May, an average UV index of 2 transforms into the following instructions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Akranes in May?
What is the least humid month in Akranes?
What is the average humidity in May in Akranes?
How many days does it rain in May in Akranes?
What is the last month it snows in Akranes?
What is the water temperature in May in Akranes?
What is the average length of the day in May in Akranes?
When is the sunrise / sunset in May in Akranes?
How many hours of sunshine does Akranes have in May?
How high is the UV index in May in Akranes?
Average temperature in May
Akranes, Iceland
- Average high temperature in May: 8.3°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 May: 4.1°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).
Average pressure in May
Akranes, Iceland
- Average pressure in May: 1012.1mbar
The month with the highest atmospheric pressure is June (1013.8mbar).
The month with the lowest atmospheric pressure is January (996.6mbar).
Average wind speed in May
Akranes, Iceland
- Average wind speed in May: 19.1km/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).
Average humidity in May
Akranes, Iceland
- Average humidity in May: 75%
The months with the highest relative humidity are January, February and September (82%).
The month with the lowest relative humidity is May (75%).
Average rainfall in May
Akranes, Iceland
- Average rainfall in May: 32mm
The wettest month (with the highest rainfall) is January (47mm).
The driest months (with the least rainfall) are June and July (25mm).
Average rainfall days in May
Akranes, Iceland
- Average rainfall days in May: 15.5 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).
Average snowfall in May
Akranes, Iceland
- Average snowfall in May: 2mm
The month with the highest snowfall is March (100mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Akranes, Iceland
- Average snowfall days in May: 1.2 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).
Average sea temperature in May
Akranes, Iceland
- Average sea temperature in May: 6.9°C
The best months for swimming (with the highest average sea temperature) are July and August (11.3°C).
The coldest month (with the lowest average sea temperature) is March (4.3°C).
Average daylight in May /
Average sunshine in May
Akranes, Iceland
- Average daylight in May: 18h and 4min
The month with the longest days is June (Average daylight: 21h and 0min).
The month with the shortest days is December (Average daylight: 4h and 18min).
- Average sunshine in May: 7h and 0min
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).
Average sunshine days in May
Akranes, Iceland
- Average sunshine days in May: 10.4 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).
Average UV index in May
Akranes, Iceland
- Average UV index in May: 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).
Average cloud cover in May
Akranes, Iceland
- Average cloud cover in May: 62
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).
Average visibility in May
Akranes, Iceland
- Average visibility in May: 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).
Akranes, Iceland
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