Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
May
Weather in May
Temperature
The onset of May brings an average high-temperature of a still refreshing 16.9°C (62.4°F), nearly matching the April temperature. Throughout May, Altstätten's nights cool down to an average of 6.8°C (44.2°F).Humidity
In Altstätten, the average relative humidity in May is 77%.Rainfall
In Altstätten, in May, it is raining for 20.7 days, with typically 113mm (4.45") of accumulated precipitation. In Altstätten, during the entire year, the rain falls for 177.8 days and collects up to 1006mm (39.61") of precipitation.Snowfall
January through May, October through December are months with snowfall in Altstätten, Switzerland. May is the last month it regularly snows in Altstätten, Switzerland. During 0.7 snowfall days, in May, Altstätten aggregates 25mm (0.98") of snow. In Altstätten, during the entire year, snow falls for 55.7 days and aggregates up to 1345mm (52.95") of snow.Daylight
In Altstätten, Switzerland, the average length of the day in May is 15h and 7min.On the first day of the month, sunrise is at 06:04 and sunset at 20:33. On the last day of May, sunrise is at 05:29 and sunset at 21:09 CEST.
Sunshine
In May, the average sunshine in Altstätten is 9.6h.UV index
In Altstätten, Switzerland, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In May, the UV index of 4 transforms into the following advice:
Heed the precautions - It is counselled to guard against solar damage. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Altstätten?
What is the average humidity in May in Altstätten?
How many days does it rain in May in Altstätten?
What is the last month it snows in Altstätten?
What is the average length of the day in May in Altstätten?
What time are sunrise and sunset in May in Altstätten?
How long on average sun shines in May in Altstätten?
How high is the UV index in May in Altstätten?
Average temperature in May
Altstätten, Switzerland
- Average high temperature in May: 16.9°C
The warmest month (with the highest average high temperature) is July (23.1°C).
The month with the lowest average high temperature is January (2.9°C).
- Average low temperature in May: 6.8°C
The months with the highest average low temperature are July and August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-2.9°C).
Average pressure in May
Altstätten, Switzerland
- Average pressure in May: 1016.1mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in May
Altstätten, Switzerland
- Average wind speed in May: 7.9km/h
The windiest month (with the highest average wind speed) is March (9km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).
Average humidity in May
Altstätten, Switzerland
- Average humidity in May: 77%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (75%).
Average rainfall in May
Altstätten, Switzerland
- Average rainfall in May: 113mm
The wettest month (with the highest rainfall) is August (126mm).
The driest month (with the least rainfall) is April (52mm).
Average rainfall days in May
Altstätten, Switzerland
- Average rainfall days in May: 20.7 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in May
Altstätten, Switzerland
- Average snowfall in May: 25mm
The month with the highest snowfall is January (353mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Altstätten, Switzerland
- Average snowfall days in May: 0.7 days
The month with the highest number of snowfall days is February (12.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Altstätten, Switzerland
- Average daylight in May: 15h and 1min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in May: 9h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in May
Altstätten, Switzerland
- Average sunshine days in May: 7.3 days
The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is July (6.6 days).
Average UV index in May
Altstätten, Switzerland
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Altstätten, Switzerland
- Average cloud cover in May: 41
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
Altstätten, Switzerland
- Average visibility in May: 9km
The months with the highest visibility are April, May, June, July, August, October and November (9km).
The months with the lowest visibility are January, February, March, September and December (8km).
