April weather forecastStykkishólmur, Iceland
April
Weather in April
April marks the transition from winter to spring, and with this transition, Stykkishólmur experiences a significant temperature increase. In comparison to March, the day temperature in April reaches a high of 3.7°C (38.7°F), and the lowest temperature rises to 0.5°C (32.9°F). However, snowfall significantly decreases to 35mm (1.38"), making it a comparatively drier month. With the soft glow of longer daylight hours and declining snowfall, the arrival of spring is evident. Thus, April serves as the bridge connecting the extreme Icelandic winter and the slightly more temperate spring.Temperature
The advent of April in Stykkishólmur brings an average high-temperature of a still wintry 3.7°C (38.7°F), almost identical to the preceding month. Stykkishólmur experiences a subtle drop in temperature during the April nights, recording an average of 0.5°C (32.9°F).Humidity
In Stykkishólmur, the average relative humidity in April is 81%.Rainfall
In Stykkishólmur, in April, during 11.7 rainfall days, 23mm (0.91") of precipitation is typically accumulated. 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 in Stykkishólmur. In April, in Stykkishólmur, it is snowing for 7.7 days. Throughout April, 35mm (1.38") of snow is accumulated. In Stykkishólmur, during the entire year, snow falls for 64.8 days and aggregates up to 403mm (15.87") of snow.Sea temperature
In April, the average sea temperature is 3.1°C (37.6°F).Note: In swimming, this condition is considered life-threatening and perilous. The painful sensation of cold water leads to immediate hyperventilation. Utilizing a specialized swimsuit is critical to reduce thermal injury.
Daylight
In April, the average length of the day is 15h and 18min.On the first day of April in Stykkishólmur, sunrise is at 06:44 and sunset at 20:25. On the last day of the month, sunrise is at 04:56 and sunset at 21:59 GMT.
Sunshine
In April, the average sunshine in Stykkishólmur, Iceland, is 5.3h.UV index
January, February, April, October through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 1 in April, converts into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Stykkishólmur, Iceland
- Average high temperature in April: 3.7°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 April: 0.5°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 April
Stykkishólmur, Iceland
- Average pressure in April: 1009.1mbar
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 April
Stykkishólmur, Iceland
- Average wind speed in April: 21.8km/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 April
Stykkishólmur, Iceland
- Average humidity in April: 81%
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 April
Stykkishólmur, Iceland
- Average rainfall in April: 23mm
The wettest month (with the highest rainfall) is January (40mm).
The driest month (with the least rainfall) is July (17mm).
Average rainfall days in April
Stykkishólmur, Iceland
- Average rainfall days in April: 11.7 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 April
Stykkishólmur, Iceland
- Average snowfall in April: 35mm
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 April
Stykkishólmur, Iceland
- Average snowfall days in April: 7.7 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 April
Stykkishólmur, Iceland
- Average sea temperature in April: 3.1°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 April /
Average sunshine in April
Stykkishólmur, Iceland
- Average daylight in April: 15h and 18min
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 April: 5h and 18min
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 April
Stykkishólmur, Iceland
- Average sunshine days in April: 10 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 April
Stykkishólmur, Iceland
- Average UV index in April: 1
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 April
Stykkishólmur, Iceland
- Average cloud cover in April: 69
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 April
Stykkishólmur, Iceland
- Average visibility in April: 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).
