April weather forecastHellnar, Iceland
April
Weather in April
April, the same as March, is another cold spring month in Hellnar, Iceland, with an average temperature ranging between max 4.5°C (40.1°F) and min 2.3°C (36.1°F).Temperature
Hellnar's shift from March to April is accompanied by an average high-temperature of a still wintry 4.5°C (40.1°F), a slight deviation from 3.3°C (37.9°F). During the nights of April, Hellnar records an average low-temperature of 2.3°C (36.1°F), reflecting a modest decrease from daytime highs.Humidity
In Hellnar, the average relative humidity in April is 78%.Rainfall
In Hellnar, during April, the rain falls for 16.6 days and regularly aggregates up to 65mm (2.56") of precipitation. In Hellnar, during the entire year, the rain falls for 184.8 days and collects up to 827mm (32.56") of precipitation.Snowfall
Months with snowfall in Hellnar are January through May, September through December. In Hellnar, in April, snow falls for 5.5 days, with typically accumulated 44mm (1.73") of snow. Throughout the year, in Hellnar, there are 46.9 snowfall days, and 421mm (16.57") of snow is accumulated.Daylight
In Hellnar, the average length of the day in April is 15h and 15min.On the first day of April in Hellnar, sunrise is at 06:48 and sunset at 20:28. On the last day of the month, sunrise is at 05:02 and sunset at 22:00 GMT.
Sunshine
The average sunshine in April in Hellnar is 5.3h.UV index
In April, the average daily maximum UV index in Hellnar is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 2 during April translates into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Hellnar, Iceland
- Average high temperature in April: 4.5°C
The warmest month (with the highest average high temperature) is August (11.3°C).
The month with the lowest average high temperature is March (3.3°C).
- Average low temperature in April: 2.3°C
The months with the highest average low temperature are July and August (9.3°C).
The coldest month (with the lowest average low temperature) is March (0.8°C).
Average pressure in April
Hellnar, Iceland
- Average pressure in April: 1008.6mbar
The month with the highest atmospheric pressure is June (1014.1mbar).
The month with the lowest atmospheric pressure is January (996.1mbar).
Average wind speed in April
Hellnar, Iceland
- Average wind speed in April: 29.3km/h
The windiest month (with the highest average wind speed) is February (36.4km/h).
The calmest month (with the lowest average wind speed) is June (19.4km/h).
Average humidity in April
Hellnar, Iceland
- Average humidity in April: 78%
The months with the highest relative humidity are June and July (82%).
The months with the lowest relative humidity are March and December (75%).
Average rainfall in April
Hellnar, Iceland
- Average rainfall in April: 65mm
The wettest month (with the highest rainfall) is January (96mm).
The driest month (with the least rainfall) is June (37mm).
Average rainfall days in April
Hellnar, Iceland
- Average rainfall days in April: 16.6 days
The month with the highest number of rainy days is September (19.9 days).
The month with the least rainy days is February (12.2 days).
Average snowfall in April
Hellnar, Iceland
- Average snowfall in April: 44mm
The month with the highest snowfall is March (99mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in April
Hellnar, Iceland
- Average snowfall days in April: 5.5 days
The month with the highest number of snowfall days is March (9.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Hellnar, Iceland
- Average daylight in April: 15h and 12min
The month with the longest days is June (Average daylight: 21h and 24min).
The month with the shortest days is December (Average daylight: 4h and 0min).
- Average sunshine in April: 5h and 18min
The month with the most sunshine is August (Average sunshine: 7h and 48min).
The month with the least sunshine is June (Average sunshine: 0h and 54min).
Average sunshine days in April
Hellnar, Iceland
- Average sunshine days in April: 7.6 days
The month with the most sunshine days is July (14.2 days).
The month with the least sunshine days is January (4.7 days).
Average UV index in April
Hellnar, Iceland
- Average UV index in April: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in April
Hellnar, Iceland
- Average cloud cover in April: 70
The month with the most cloud cover is March (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 56).
Average visibility in April
Hellnar, Iceland
- Average visibility in April: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March and December (8km).
