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
Entering April, Altdorf notices a subtle temperature elevation, with the average high-temperature advancing from March's icy 3.1°C (37.6°F) to a frosty 7.8°C (46°F). Altdorf witnesses a consistent average low-temperature of -0.8°C (30.6°F) throughout April.Humidity
In April, the average relative humidity is 85%.Rainfall
In Altdorf, in April, it is raining for 19.4 days, with typically 84mm (3.31") of accumulated precipitation. Throughout the year, there are 216.7 rainfall days, and 1294mm (50.94") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Altdorf, in April, during 2.6 snowfall days, 50mm (1.97") of snow is typically accumulated. Throughout the year, there are 41 snowfall days, and 854mm (33.62") of snow is accumulated.Daylight
In April, the average length of the day in Altdorf, Switzerland, is 13h and 37min.On the first day of April, sunrise is at 07:03 and sunset at 19:54. On the last day of the month, sunrise is at 06:10 and sunset at 20:34 CEST.
Sunshine
In April, the average sunshine is 8.6h.UV index
The average daily maximum UV index in April in Altdorf is 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In April, the maximum UV index of 2 suggests this advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
What is the average April temperature in Altdorf?
What is the average humidity in April in Altdorf?
How many days does it rain in April in Altdorf?
How many days does it snow in April in Altdorf?
How many hours of daylight does Altdorf have in April?
When is the sunrise / sunset in April in Altdorf?
How many hours of sunshine does Altdorf have in April?
What is the UV index intensity in April in Altdorf?
Average temperature in April
Altdorf, Switzerland
- Average high temperature in April: 7.8°C
The warmest month (with the highest average high temperature) is August (18.8°C).
The month with the lowest average high temperature is January (-0.9°C).
- Average low temperature in April: -0.8°C
The month with the highest average low temperature is August (8.8°C).
The coldest month (with the lowest average low temperature) is February (-8°C).
Average pressure in April
Altdorf, Switzerland
- Average pressure in April: 1015.5mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in April
Altdorf, Switzerland
- Average wind speed in April: 7.2km/h
The windiest month (with the highest average wind speed) is December (8km/h).
The calmest month (with the lowest average wind speed) is August (5.7km/h).
Average humidity in April
Altdorf, Switzerland
- Average humidity in April: 85%
The month with the highest relative humidity is March (90%).
The months with the lowest relative humidity are July and August (80%).
Average rainfall in April
Altdorf, Switzerland
- Average rainfall in April: 84mm
The wettest month (with the highest rainfall) is August (166mm).
The driest month (with the least rainfall) is February (70mm).
Average rainfall days in April
Altdorf, Switzerland
- Average rainfall days in April: 19.4 days
The month with the highest number of rainy days is July (24.1 days).
The month with the least rainy days is February (12.3 days).
Average snowfall in April
Altdorf, Switzerland
- Average snowfall in April: 50mm
The month with the highest snowfall is February (232mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in April
Altdorf, Switzerland
- Average snowfall days in April: 2.6 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Altdorf, Switzerland
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in April: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in April
Altdorf, Switzerland
- Average sunshine days in April: 7.8 days
The month with the most sunshine days is October (15.5 days).
The month with the least sunshine days is July (4.4 days).
Average UV index in April
Altdorf, Switzerland
- Average UV index in April: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in April
Altdorf, Switzerland
- Average cloud cover in April: 44
The months with the most cloud cover are February, March and May (Cloud cover 48).
The months with the least cloud cover are August and October (Cloud cover 37).
Average visibility in April
Altdorf, Switzerland
- Average visibility in April: 8km
The months with the highest visibility are April, May, June, July, August, October, November and December (8km).
The months with the lowest visibility are January, February, March and September (7km).
Altdorf, Switzerland
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