May weather forecastVallanes, Iceland
May
Weather in May
The last month of the spring, May, is also a wintry month in Vallanes, Iceland, with an average temperature fluctuating between 5.7°C (42.3°F) and 0.8°C (33.4°F).Temperature
The beginning of May signals a minor rise in the average high-temperature, moving from 2°C (35.6°F) in April to a still icy 5.7°C (42.3°F). May in Vallanes, Iceland, witnesses a minor deviation from daytime peaks, with an average nighttime temperature of 0.8°C (33.4°F).Humidity
In Vallanes, Iceland, the average relative humidity in May is 81%.Rainfall
In Vallanes, Iceland, in May, during 17.7 rainfall days, 60mm (2.36") of precipitation is typically accumulated. In Vallanes, Iceland, during the entire year, the rain falls for 196.9 days and collects up to 966mm (38.03") of precipitation.Snowfall
January through July, September through December are months with snowfall in Vallanes. In May, it is snowing for 7.3 days. Throughout May, 88mm (3.46") of snow is accumulated. In Vallanes, during the entire year, snow falls for 115.7 days and aggregates up to 2085mm (82.09") of snow.Daylight
The average length of the day in May in Vallanes is 18h and 56min.On the first day of the month, sunrise is at 04:19 and sunset at 21:31. On the last day of May, sunrise is at 02:32 and sunset at 23:19 GMT.
Sunshine
The month with the most sunshine is May, with an average of 7.2h of sunshine.UV index
In Vallanes, the average daily maximum UV index in May is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: A typical high UV index of 2 in May suggests the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Vallanes, Iceland
- Average high temperature in May: 5.7°C
The warmest month (with the highest average high temperature) is July (11.8°C).
The month with the lowest average high temperature is December (-1.2°C).
- Average low temperature in May: 0.8°C
The month with the highest average low temperature is July (6.8°C).
The coldest month (with the lowest average low temperature) is December (-6.2°C).
Average pressure in May
Vallanes, Iceland
- Average pressure in May: 1013.2mbar
The month with the highest atmospheric pressure is June (1014.4mbar).
The month with the lowest atmospheric pressure is January (998.7mbar).
Average wind speed in May
Vallanes, Iceland
- Average wind speed in May: 14.3km/h
The windiest month (with the highest average wind speed) is December (18.7km/h).
The calmest month (with the lowest average wind speed) is July (11.9km/h).
Average humidity in May
Vallanes, Iceland
- Average humidity in May: 81%
The months with the highest relative humidity are January, February, November and December (89%).
The month with the lowest relative humidity is June (77%).
Average rainfall in May
Vallanes, Iceland
- Average rainfall in May: 60mm
The wettest month (with the highest rainfall) is December (145mm).
The driest month (with the least rainfall) is June (38mm).
Average rainfall days in May
Vallanes, Iceland
- Average rainfall days in May: 17.7 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is March (12.8 days).
Average snowfall in May
Vallanes, Iceland
- Average snowfall in May: 88mm
The month with the highest snowfall is March (430mm).
The month with the least snowfall is August (0mm).
Average snowfall days in May
Vallanes, Iceland
- Average snowfall days in May: 7.3 days
The month with the highest number of snowfall days is March (19.5 days).
The month with the least snowfall days is August (0 days).
Average daylight in May /
Average sunshine in May
Vallanes, Iceland
- Average daylight in May: 18h and 54min
The month with the longest days is June (Average daylight: 21h and 54min).
The month with the shortest days is December (Average daylight: 3h and 48min).
- Average sunshine in May: 7h and 12min
The month with the most sunshine is May (Average sunshine: 7h and 12min).
The month with the least sunshine is December (Average sunshine: 1h and 24min).
Average sunshine days in May
Vallanes, Iceland
- Average sunshine days in May: 6.3 days
The month with the most sunshine days is August (10.3 days).
The month with the least sunshine days is February (3.5 days).
Average UV index in May
Vallanes, Iceland
- Average UV index in May: 2
The month with the highest UV index is June (UV index 3).
The months with the lowest UV index are January, February, March and December (UV index 1).
Average cloud cover in May
Vallanes, Iceland
- Average cloud cover in May: 64
The months with the most cloud cover are February and November (Cloud cover 70).
The month with the least cloud cover is June (Cloud cover 61).
Average visibility in May
Vallanes, Iceland
- Average visibility in May: 8km
The months with the highest visibility are June, July and September (9km).
The months with the lowest visibility are February, March and December (7km).





