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
With the onset of May, Ollon's average high-temperature experiences a slight rise, moving from April's frosty 8.7°C (47.7°F) to a cool 11.8°C (53.2°F). May nights in Ollon are marked by an average low-temperature of 2.5°C (36.5°F).Humidity
The average relative humidity in May is 83%.Rainfall
The month with the most rainfall in Ollon is May, when the rain falls for 23 days and typically aggregates up to 150mm (5.91") of precipitation.Snowfall
January through June, September through December are months with snowfall. In Ollon, in May, snow falls for 4.4 days, with typically accumulated 103mm (4.06") of snow. Throughout the year, there are 83.4 snowfall days, and 3139mm (123.58") of snow is accumulated.Daylight
The average length of the day in May in Ollon is 15h and 0min.On the first day of the month, sunrise is at 06:17 and sunset at 20:40. On the last day of May, in Ollon, sunrise is at 05:43 and sunset at 21:15 CEST.
Sunshine
In Ollon, the average sunshine in May is 9.2h.UV index
In Ollon, the average daily maximum UV index in May is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 3 during May translates into the following guidance:
Be vigilant - Preventing sunburn is recommended. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Ollon?
What is the average humidity in May in Ollon?
What is the rainiest month in Ollon?
How much does it rain in Ollon in May?
How much does it snow in Ollon in May?
How many hours of daylight does Ollon have in May?
What time are sunrise and sunset in May in Ollon?
How many hours of sunshine does Ollon have in May?
How high is the UV index in May in Ollon?
Average temperature in May
Ollon, Switzerland
- Average high temperature in May: 11.8°C
The warmest month (with the highest average high temperature) is August (19°C).
The month with the lowest average high temperature is January (-0.3°C).
- Average low temperature in May: 2.5°C
The month with the highest average low temperature is August (8.2°C).
The coldest month (with the lowest average low temperature) is February (-8.4°C).
Average pressure in May
Ollon, Switzerland
- Average pressure in May: 1015.9mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in May
Ollon, Switzerland
- Average wind speed in May: 7.3km/h
The windiest month (with the highest average wind speed) is December (8.8km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).
Average humidity in May
Ollon, Switzerland
- Average humidity in May: 83%
The months with the highest relative humidity are February and March (88%).
The months with the lowest relative humidity are July, August and October (78%).
Average rainfall in May
Ollon, Switzerland
- Average rainfall in May: 150mm
The wettest month (with the highest rainfall) is May (150mm).
The driest month (with the least rainfall) is September (57mm).
Average rainfall days in May
Ollon, Switzerland
- Average rainfall days in May: 23 days
The month with the highest number of rainy days is May (23 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in May
Ollon, Switzerland
- Average snowfall in May: 103mm
The month with the highest snowfall is December (671mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in May
Ollon, Switzerland
- Average snowfall days in May: 4.4 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Ollon, Switzerland
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in May
Ollon, Switzerland
- Average sunshine days in May: 5.3 days
The month with the most sunshine days is October (16.8 days).
The month with the least sunshine days is June (4.8 days).
Average UV index in May
Ollon, Switzerland
- Average UV index in May: 3
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in May
Ollon, Switzerland
- Average cloud cover in May: 45
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are August and October (Cloud cover 33).
Average visibility in May
Ollon, Switzerland
- Average visibility in May: 8km
The months with the highest visibility are April, May, June, July, August, September, October, November and December (8km).
The months with the lowest visibility are January, February and March (7km).
