May weather forecastGrenivík, Iceland
May
Weather in May
The last month of the spring, May, is also a wintry month in Grenivík, Iceland, with an average temperature fluctuating between -1.3°C (29.7°F) and 4.6°C (40.3°F).Temperature
May's onset is marked by a subtle temperature increase, moving from 0.6°C (33.1°F) in April to a still wintry 4.6°C (40.3°F). During the month of May, the temperature falls to an average of -1.3°C (29.7°F).Humidity
In May, the average relative humidity in Grenivík, Iceland, is 84%.Rainfall
In Grenivík, in May, it is raining for 16.1 days, with typically 49mm (1.93") of accumulated precipitation. Throughout the year, in Grenivík, there are 178 rainfall days, and 899mm (35.39") of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Grenivík. In May, in Grenivík, it is snowing for 6.9 days. Throughout May, 100mm (3.94") of snow is accumulated. Throughout the year, in Grenivík, there are 122.7 snowfall days, and 2568mm (101.1") of snow is accumulated.Daylight
The average length of the day in May in Grenivík is 19h and 20min.On the first day of May, sunrise is at 04:27 and sunset at 21:52. On the last day of the month, sunrise is at 02:26 and sunset at 23:54 GMT.
Sunshine
With an average of 6.7h of sunshine, May has the most sunshine of the year.UV index
The months with the highest UV index in Grenivík are April through September, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index, 2 during May, leads to the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Grenivík, Iceland
- Average high temperature in May: 4.6°C
The warmest month (with the highest average high temperature) is July (11.1°C).
The month with the lowest average high temperature is December (-3.8°C).
- Average low temperature in May: -1.3°C
The month with the highest average low temperature is July (5.6°C).
The coldest month (with the lowest average low temperature) is December (-9.1°C).
Average pressure in May
Grenivík, Iceland
- Average pressure in May: 1013.1mbar
The month with the highest atmospheric pressure is June (1014.3mbar).
The month with the lowest atmospheric pressure is January (998.5mbar).
Average wind speed in May
Grenivík, Iceland
- Average wind speed in May: 12.4km/h
The windiest month (with the highest average wind speed) is December (16.3km/h).
The calmest month (with the lowest average wind speed) is July (9.9km/h).
Average humidity in May
Grenivík, Iceland
- Average humidity in May: 84%
The months with the highest relative humidity are January, February, March and December (91%).
The month with the lowest relative humidity is June (77%).
Average rainfall in May
Grenivík, Iceland
- Average rainfall in May: 49mm
The wettest month (with the highest rainfall) is December (115mm).
The driest month (with the least rainfall) is June (40mm).
Average rainfall days in May
Grenivík, Iceland
- Average rainfall days in May: 16.1 days
The months with the highest number of rainy days are July and August (22.3 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in May
Grenivík, Iceland
- Average snowfall in May: 100mm
The month with the highest snowfall is December (511mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in May
Grenivík, Iceland
- Average snowfall days in May: 6.9 days
The month with the highest number of snowfall days is March (20.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Grenivík, Iceland
- Average daylight in May: 19h and 18min
The month with the longest days is July (Average daylight: 20h and 48min).
The month with the shortest days is December (Average daylight: 3h and 12min).
- Average sunshine in May: 6h and 42min
The month with the most sunshine is May (Average sunshine: 6h and 42min).
The month with the least sunshine is June (Average sunshine: 1h and 6min).
Average sunshine days in May
Grenivík, Iceland
- Average sunshine days in May: 8.9 days
The month with the most sunshine days is May (8.9 days).
The month with the least sunshine days is September (5.3 days).
Average UV index in May
Grenivík, Iceland
- Average UV index in May: 2
The months with the highest UV index are April, May, June, July, August and September (UV index 2).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in May
Grenivík, Iceland
- Average cloud cover in May: 65
The month with the most cloud cover is March (Cloud cover 72).
The month with the least cloud cover is June (Cloud cover 62).
Average visibility in May
Grenivík, Iceland
- Average visibility in May: 8km
The month with the highest visibility is June (9km).
The months with the lowest visibility are January, February, March, April, November and December (7km).
