Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The arrival of April in Norrtälje brings a soft temperature shift, with the average high-temperature nudging from a wintry 2.7°C (36.9°F) in March to a chilly 7.5°C (45.5°F). Norrtälje documents an average low-temperature of 2.6°C (36.7°F) for the nights of April.Humidity
The months with the lowest humidity are April through June, with an average relative humidity of 75%.Rainfall
April is the month with the least rainfall. Rain falls for 10.8 days and accumulates 16mm (0.63") of precipitation.Snowfall
January through May, October through December are months with snowfall. In April, it is snowing for 2.8 days. Throughout April, 23mm (0.91") of snow is accumulated. In Norrtälje, during the entire year, snow falls for 47.1 days and aggregates up to 311mm (12.24") of snow.Daylight
In Norrtälje, the average length of the day in April is 14h and 35min.On the first day of the month, sunrise is at 06:08 and sunset at 19:29. On the last day of April, sunrise is at 04:45 and sunset at 20:39 CEST.
Sunshine
In April, the average sunshine is 8.5h.UV index
The average daily maximum UV index in April in Norrtälje is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high daily UV index of 2 during April translates into the following directions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the average April temperature in Norrtälje?
What is the least humid month in Norrtälje?
What is the average humidity in April in Norrtälje?
What is the driest month in Norrtälje?
How many days does it rain in April in Norrtälje?
How many days does it snow in April in Norrtälje?
What is the average length of the day in April in Norrtälje?
When is the sunrise / sunset in April in Norrtälje?
How many hours of sunshine does Norrtälje have in April?
What is the UV index reading in April in Norrtälje?
Average temperature in April
Norrtälje, Sweden
- Average high temperature in April: 7.5°C
The warmest months (with the highest average high temperature) are July and August (19.5°C).
The month with the lowest average high temperature is January (0.2°C).
- Average low temperature in April: 2.6°C
The months with the highest average low temperature are July and August (14.1°C).
The coldest months (with the lowest average low temperature) are January and February (-2.5°C).
Average pressure in April
Norrtälje, Sweden
- Average pressure in April: 1014.1mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.5mbar).
Average wind speed in April
Norrtälje, Sweden
- Average wind speed in April: 16.5km/h
The windiest month (with the highest average wind speed) is December (21.8km/h).
The calmest month (with the lowest average wind speed) is July (14.3km/h).
Average humidity in April
Norrtälje, Sweden
- Average humidity in April: 75%
The months with the highest relative humidity are February and November (86%).
The months with the lowest relative humidity are April, May and June (75%).
Average rainfall in April
Norrtälje, Sweden
- Average rainfall in April: 16mm
The wettest month (with the highest rainfall) is July (52mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in April
Norrtälje, Sweden
- Average rainfall days in April: 10.8 days
The month with the highest number of rainy days is August (16.2 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in April
Norrtälje, Sweden
- Average snowfall in April: 23mm
The month with the highest snowfall is February (82mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in April
Norrtälje, Sweden
- Average snowfall days in April: 2.8 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Norrtälje, Sweden
- Average daylight in April: 14h and 4min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 6min).
- Average sunshine in April: 8h and 3min
The month with the most sunshine is June (Average sunshine: 12h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 24min).
Average sunshine days in April
Norrtälje, Sweden
- Average sunshine days in April: 14.4 days
The month with the most sunshine days is May (14.5 days).
The month with the least sunshine days is August (11.3 days).
Average UV index in April
Norrtälje, Sweden
- Average UV index in April: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in April
Norrtälje, Sweden
- Average cloud cover in April: 45
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in April
Norrtälje, Sweden
- Average visibility in April: 9km
The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, May, November and December (9km).
Norrtälje, Sweden
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