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
Stykkishólmur's weather in May shows a minor rise in the average high-temperature, moving slightly up from April's wintry 3.7°C (38.7°F) to a frosty 6.8°C (44.2°F). Nighttime temperatures in Stykkishólmur during May report a consistent average of 3.3°C (37.9°F).Humidity
May is the least humid month, with an average relative humidity of 77%.Rainfall
In Stykkishólmur, during May, the rain falls for 12.1 days and regularly aggregates up to 26mm (1.02") of precipitation. In Stykkishólmur, during the entire year, the rain falls for 139.6 days and collects up to 351mm (13.82") of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Stykkishólmur. During 2.7 snowfall days, in May, Stykkishólmur aggregates 10mm (0.39") of snow. Throughout the year, there are 64.8 snowfall days, and 403mm (15.87") of snow is accumulated.Sea temperature
In May, the average sea temperature in Stykkishólmur is 4.9°C (40.8°F).Note: Within swimming, this is perceived as extraordinarily cold, dangerous, and potentially lethal. If not properly protected by insulated waterproof attire, hypothermia ensues quickly.
Daylight
In Stykkishólmur, the average length of the day in May is 18h and 54min.On the first day of the month, sunrise is at 04:52 and sunset at 22:03. On the last day of May, sunrise is at 03:07 and sunset at 23:49 GMT.
Sunshine
The month with the most sunshine in Stykkishólmur is May, with an average of 7.3h of sunshine.UV index
In Stykkishólmur, the average daily maximum UV index in May is 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.Note: In May, a regular UV index of 2 translates into these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Stykkishólmur in May?
What is the least humid month in Stykkishólmur?
What is the average humidity in May in Stykkishólmur?
How many days does it rain in May in Stykkishólmur?
What is the last month it snows in Stykkishólmur?
What is the water temperature in May in Stykkishólmur?
How many hours of daylight does Stykkishólmur have in May?
When is the sunrise / sunset in May in Stykkishólmur?
What month has the most sunshine in Stykkishólmur?
How long on average sun shines in May in Stykkishólmur?
How high is the UV index in May in Stykkishólmur?
Average temperature in May
Stykkishólmur, Iceland
- Average high temperature in May: 6.8°C
The warmest month (with the highest average high temperature) is July (12.1°C).
The month with the lowest average high temperature is December (0.7°C).
- Average low temperature in May: 3.3°C
The month with the highest average low temperature is July (8.3°C).
The coldest months (with the lowest average low temperature) are February and December (-1.8°C).
Average pressure in May
Stykkishólmur, Iceland
- Average pressure in May: 1012.4mbar
The month with the highest atmospheric pressure is June (1014.1mbar).
The month with the lowest atmospheric pressure is January (996.7mbar).
Average wind speed in May
Stykkishólmur, Iceland
- Average wind speed in May: 18.9km/h
The windiest month (with the highest average wind speed) is February (25.9km/h).
The calmest month (with the lowest average wind speed) is June (14.6km/h).
Average humidity in May
Stykkishólmur, Iceland
- Average humidity in May: 77%
The months with the highest relative humidity are January, February and October (83%).
The month with the lowest relative humidity is May (77%).
Average rainfall in May
Stykkishólmur, Iceland
- Average rainfall in May: 26mm
The wettest month (with the highest rainfall) is January (40mm).
The driest month (with the least rainfall) is July (17mm).
Average rainfall days in May
Stykkishólmur, Iceland
- Average rainfall days in May: 12.1 days
The month with the highest number of rainy days is October (15.7 days).
The month with the least rainy days is February (9.1 days).
Average snowfall in May
Stykkishólmur, Iceland
- Average snowfall in May: 10mm
The month with the highest snowfall is March (97mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Stykkishólmur, Iceland
- Average snowfall days in May: 2.7 days
The month with the highest number of snowfall days is January (11.6 days).
The months with the least snowfall days are July and August (0 days).
Average sea temperature in May
Stykkishólmur, Iceland
- Average sea temperature in May: 4.9°C
The best month for swimming (with the highest average sea temperature) is August (10.3°C).
The coldest month (with the lowest average sea temperature) is March (2.1°C).
Average daylight in May /
Average sunshine in May
Stykkishólmur, Iceland
- Average daylight in May: 18h and 5min
The month with the longest days is June (Average daylight: 21h and 42min).
The month with the shortest days is December (Average daylight: 3h and 48min).
- Average sunshine in May: 7h and 2min
The month with the most sunshine is May (Average sunshine: 7h and 18min).
The month with the least sunshine is June (Average sunshine: 0h and 48min).
Average sunshine days in May
Stykkishólmur, Iceland
- Average sunshine days in May: 14.2 days
The months with the most sunshine days are June and July (16.8 days).
The month with the least sunshine days is March (9.1 days).
Average UV index in May
Stykkishólmur, Iceland
- Average UV index in May: 2
The months with the highest UV index are June, July and August (UV index 3).
The months with the lowest UV index are January, February, April, October, November and December (UV index 1).
Average cloud cover in May
Stykkishólmur, Iceland
- Average cloud cover in May: 61
The month with the most cloud cover is March (Cloud cover 72).
The months with the least cloud cover are May and June (Cloud cover 61).
Average visibility in May
Stykkishólmur, Iceland
- Average visibility in May: 9km
The months with the highest visibility are June and July (10km).
The months with the lowest visibility are January, February, March, April, May, August, September, October, November and December (9km).
Stykkishólmur, Iceland
Weather forecast for your location
2. Allow the app to use your location