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
April
Weather in April
Temperature
The onset of April brings a rise in the average high-temperature, elevating from a chilly 7.4°C (45.3°F) in March to a fresh 12.8°C (55°F). Throughout April, the average low-temperature records at a wintry 2.8°C (37°F).Humidity
The months with the lowest humidity in Alterswil are April, July and August, with an average relative humidity of 79%.Rainfall
In Alterswil, during April, the rain falls for 18.3 days and regularly aggregates up to 60mm (2.36") of precipitation. Throughout the year, in Alterswil, there are 205.3 rainfall days, and 992mm (39.06") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Alterswil, in April, during 1.5 snowfall days, 45mm (1.77") of snow is typically accumulated. In Alterswil, during the entire year, snow falls for 44.9 days and aggregates up to 818mm (32.2") of snow.Daylight
In April, the average length of the day in Alterswil is 13h and 37min.On the first day of the month, sunrise is at 07:08 and sunset at 20:00. On the last day of April, sunrise is at 06:16 and sunset at 20:39 CEST.
Sunshine
In April, the average sunshine is 9.1h.UV index
The average daily maximum UV index in April in Alterswil is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 3 during April leads to these advisories:
Undertake precautions - It is suggested to shield oneself from sunburn. Around midday, solar radiation is most harmful; hence, exposure should be limited. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April in Alterswil?
What is the least humid month in Alterswil?
What is the average humidity in April in Alterswil?
How many days does it rain in April in Alterswil?
How many days does it snow in April in Alterswil?
How many hours of daylight does Alterswil have in April?
When is the sunrise / sunset in April in Alterswil?
How long on average sun shines in April in Alterswil?
What is the UV index reading in April in Alterswil?
Average temperature in April
Alterswil, Switzerland
- Average high temperature in April: 12.8°C
The warmest month (with the highest average high temperature) is July (22°C).
The month with the lowest average high temperature is January (2.2°C).
- Average low temperature in April: 2.8°C
The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is February (-4.6°C).
Average pressure in April
Alterswil, Switzerland
- Average pressure in April: 1015.5mbar
The month with the highest atmospheric pressure is December (1021.1mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in April
Alterswil, Switzerland
- Average wind speed in April: 8.1km/h
The windiest month (with the highest average wind speed) is February (9.9km/h).
The calmest month (with the lowest average wind speed) is August (6.3km/h).
Average humidity in April
Alterswil, Switzerland
- Average humidity in April: 79%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, July and August (79%).
Average rainfall in April
Alterswil, Switzerland
- Average rainfall in April: 60mm
The wettest month (with the highest rainfall) is June (117mm).
The driest month (with the least rainfall) is September (53mm).
Average rainfall days in April
Alterswil, Switzerland
- Average rainfall days in April: 18.3 days
The month with the highest number of rainy days is May (23.1 days).
The month with the least rainy days is February (12.2 days).
Average snowfall in April
Alterswil, Switzerland
- Average snowfall in April: 45mm
The month with the highest snowfall is December (192mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in April
Alterswil, Switzerland
- Average snowfall days in April: 1.5 days
The month with the highest number of snowfall days is February (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Alterswil, 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: 9h and 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in April
Alterswil, Switzerland
- Average sunshine days in April: 8.9 days
The month with the most sunshine days is October (14.6 days).
The month with the least sunshine days is June (4.3 days).
Average UV index in April
Alterswil, Switzerland
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Alterswil, Switzerland
- Average cloud cover in April: 39
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in April
Alterswil, Switzerland
- Average visibility in April: 9km
The months with the highest visibility are March, April and August (9km).
The months with the lowest visibility are January, February, May, June, July, September, October, November and December (8km).
