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
Weather in May
Temperature
May commences with an average high-temperature of a comfortable 18.4°C (65.1°F), showing little deviation from April's 15.8°C (60.4°F). During May, Illnau notes a substantial drop from the daytime peak to an average minimum temperature of 6.1°C (43°F).Humidity
In May, the average relative humidity is 78%.Rainfall
In Illnau, Switzerland, in May, it is raining for 18.4 days, with typically 78mm (3.07") of accumulated precipitation. In Illnau, during the entire year, the rain falls for 155.4 days and collects up to 704mm (27.72") of precipitation.Snowfall
January through May, October through December are months with snowfall in Illnau, Switzerland. May is the last month it regularly snows. During 0.3 snowfall days, in May, Illnau aggregates 9mm (0.35") of snow. In Illnau, Switzerland, during the entire year, snow falls for 42.6 days and aggregates up to 729mm (28.7") of snow.Daylight
In Illnau, the average length of the day in May is 15h and 7min.On the first day of the month, sunrise is at 06:07 and sunset at 20:36. On the last day of May, in Illnau, sunrise is at 05:32 and sunset at 21:13 CEST.
Sunshine
In May, the average sunshine is 8.9h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In May, a daily UV index of 4 turns into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
What are the temperatures in Illnau in May?
What is the average humidity in May in Illnau?
How many days does it rain in May in Illnau?
What is the last month it snows in Illnau?
How many hours of daylight does Illnau have in May?
When are sunrise and sunset in May in Illnau?
How many hours of sunshine does Illnau have in May?
How high is the UV index in May in Illnau?
Average temperature in May
Illnau, Switzerland
- Average high temperature in May: 18.4°C
The warmest month (with the highest average high temperature) is July (24.6°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in May: 6.1°C
The months with the highest average low temperature are July and August (12.1°C).
The coldest month (with the lowest average low temperature) is January (-3.3°C).
Average pressure in May
Illnau, Switzerland
- Average pressure in May: 1016.2mbar
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
Illnau, Switzerland
- Average wind speed in May: 7.7km/h
The windiest month (with the highest average wind speed) is March (8.8km/h).
The calmest month (with the lowest average wind speed) is August (6.2km/h).
Average humidity in May
Illnau, Switzerland
- Average humidity in May: 78%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall in May
Illnau, Switzerland
- Average rainfall in May: 78mm
The wettest month (with the highest rainfall) is December (82mm).
The driest month (with the least rainfall) is September (29mm).
Average rainfall days in May
Illnau, Switzerland
- Average rainfall days in May: 18.4 days
The month with the highest number of rainy days is May (18.4 days).
The months with the least rainy days are September and November (9.9 days).
Average snowfall in May
Illnau, Switzerland
- Average snowfall in May: 9mm
The month with the highest snowfall is January (182mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Illnau, Switzerland
- Average snowfall days in May: 0.3 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 May /
Average sunshine in May
Illnau, 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: 8h and 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in May
Illnau, Switzerland
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is February (11.1 days).
Average UV index in May
Illnau, Switzerland
- Average UV index in May: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in May
Illnau, Switzerland
- Average cloud cover in May: 46
The months with the most cloud cover are January and February (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
Illnau, Switzerland
- Average visibility in May: 8km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (8km).
The months with the lowest visibility are January and February (7km).
Illnau, Switzerland
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