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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Ollon, Switzerland, with an average temperature fluctuating between -0.3°C (31.5°F) and -8.3°C (17.1°F). In Ollon, January is the coldest month, with temperatures averaging a high of -0.3°C (31.5°F) and a low of -8.3°C (17.1°F). Weather in January »
Weather in February
February, the last month of the winter in Ollon, is also a subzero cold month, with temperature in the range of an average low of -8.4°C (16.9°F) and an average high of -0.1°C (31.8°F). The advent of February sees the average high-temperature at a still subzero cold -0.1°C (31.8°F), subtly shifted from January's -0.3°C (31.5°F). Weather in February »
Weather in March
March, the first month of the spring in Ollon, is a cold month, with temperature in the range of an average low of -4.6°C (23.7°F) and an average high of 3.3°C (37.9°F). March comes with a subtle rise, with the average high-temperature adjusting from a freezing cold -0.1°C (31.8°F) in February to an icy 3.3°C (37.9°F). Weather in March »
Weather in April
April is a frosty spring month in Ollon, Switzerland, with an average temperature varying between -0.6°C (30.9°F) and 8.7°C (47.7°F). Ollon's April weather shows an increase in high-temperatures, moving from March's cold 3.3°C (37.9°F) to a chilly 8.7°C (47.7°F). Weather in April »
Weather in May
The last month of the spring, May, is a fresh month in Ollon, Switzerland, with an average temperature fluctuating between 11.8°C (53.2°F) and 2.5°C (36.5°F). 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). Weather in May »
Weather in June
June, the first month of the summer in Ollon, is an enjoyable month, with an average temperature fluctuating between 6.1°C (43°F) and 16.4°C (61.5°F). The arrival of June introduces a minor uplift in high-temperatures, adjusting from a cool 11.8°C (53.2°F) in May to a comfortable 16.4°C (61.5°F). Weather in June »
Weather in July
July, like June, in Ollon, Switzerland, is another enjoyable summer month, with an average temperature varying between 8.1°C (46.6°F) and 18.9°C (66°F). Transitioning from June to July, Ollon observes an average high-temperature of a still enjoyable 18.9°C (66°F), differing subtly from the previous month. Weather in July »
Weather in August
August, the last month of the summer in Ollon, is also an enjoyable month, with an average temperature fluctuating between 8.2°C (46.8°F) and 19°C (66.2°F). In Ollon, August is the warmest month, with temperatures averaging a high of 19°C (66.2°F) and a low of 8.2°C (46.8°F). Weather in August »
Weather in September
September, the first month of the autumn in Ollon, is still a mild month, with an average temperature fluctuating between 5.1°C (41.2°F) and 14.8°C (58.6°F). September brings a slight decrease in the average high-temperature, shifting from a comfortable 19°C (66.2°F) in August to a still refreshing 14.8°C (58.6°F). Weather in September »
Weather in October
October, like September, in Ollon, Switzerland, is another fresh autumn month, with an average temperature ranging between min 1.9°C (35.4°F) and max 10.9°C (51.6°F). October's arrival aligns with a minor decrease in average high-temperatures, from September's mild 14.8°C (58.6°F) to a cool 10.9°C (51.6°F). Weather in October »
Weather in November
November, the last month of the autumn in Ollon, is also an icy month, with temperature in the range of an average low of -2.3°C (27.9°F) and an average high of 4.9°C (40.8°F). The onset of November coincides with a reduction in the average high-temperature, falling from a cool 10.9°C (51.6°F) in October to an icy 4.9°C (40.8°F). Weather in November »
Weather in December
December, the first month of the winter in Ollon, is also a wintry month, with temperature in the range of an average high of 1.1°C (34°F) and an average low of -6.4°C (20.5°F). A subtle shift in Ollon's weather is observed as November turns into December, with the average high temperature reducing from 4.9°C (40.8°F) to a still wintry 1.1°C (34°F). Weather in December »
Updated: Feb 3, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Ollon?
January is the coldest month of the year, registering average temperatures as high as -0.3°C (31.5°F) and as low as -8.3°C (17.1°F).
How much does it rain in Ollon?
Throughout the year, in Ollon, Switzerland, there are 163.4 rainfall days, and 1169mm (46.02") of precipitation is accumulated.
When does it snow in Ollon?
Months with snowfall are January through June, September through December.
How many days does it snow in Ollon?
Throughout the year, in Ollon, Switzerland, there are 83.4 snowfall days, and 3139mm (123.58") of snow is accumulated.
What are the months with the least sunshine in Ollon?
The months with the least sunshine are January and December, with an average of 5.4h of sunshine.
When is the lowest UV index in Ollon?
January and February, with an average maximum UV index of 1, are months with the lowest UV index in Ollon, Switzerland.
What are the most humid months in Ollon?
The months with the highest humidity in Ollon are February and March, with an average relative humidity of 88%.
What is the rainiest month in Ollon?
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.
When are the longest days in Ollon?
With an average of 15h and 42min of daylight, June has the longest days of the year.
What are the months with the highest UV index in Ollon?
June and July, with an average maximum UV index of 4, are months with the highest UV index in Ollon, Switzerland.
What are the least humid months in Ollon?
July, August and October, with an average relative humidity of 78%, are the least humid months in Ollon.
When it does not snow in Ollon?
In Ollon, Switzerland, snow does not fall in July and August.
What month has the most sunshine in Ollon?
With an average of 10.4h of sunshine, July has the most sunshine of the year.
What month is the hottest in Ollon?
August, with its high-temperature average of 19°C (66.2°F) and a low-temperature average of 8.2°C (46.8°F), is the warmest month in Ollon.
What is the driest month in Ollon?
The month with the least rainfall in Ollon, Switzerland, is September, when the rain falls for 16.3 days and typically collects 57mm (2.24") of precipitation.
When is Daylight Saving Time (DST) in Ollon?
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Ollon, Switzerland, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.
When does it snow the most in Ollon?
The month with the most snowfall in Ollon, Switzerland, is December, when snow falls for 13 days and typically aggregates up to 671mm (26.42") of snow.
What is the month with the shortest days in Ollon?
December has the shortest days of the year in Ollon, with an average of 8h and 42min of daylight.
Average temperature
Ollon, Switzerland
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).
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
Ollon, Switzerland
- Average pressure in January:
1019.3mbar - Average pressure in February:
1017.5mbar - Average pressure in March:
1016.8mbar - Average pressure in April:
1015.3mbar - Average pressure in May:
1015.9mbar - Average pressure in June:
1016.3mbar
- Average pressure in July:
1016.9mbar - Average pressure in August:
1017.7mbar - Average pressure in September:
1018.3mbar - Average pressure in October:
1018.3mbar - Average pressure in November:
1015.9mbar - Average pressure in December:
1021mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed
Ollon, Switzerland
- Average wind speed in January:
8.4km/h - Average wind speed in February:
8.4km/h - Average wind speed in March:
8.3km/h - Average wind speed in April:
7.4km/h - Average wind speed in May:
7.3km/h - Average wind speed in June:
7.1km/h
- Average wind speed in July:
6.7km/h - Average wind speed in August:
6.5km/h - Average wind speed in September:
6.7km/h - Average wind speed in October:
7.3km/h - Average wind speed in November:
8.1km/h - Average wind speed in December:
8.8km/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
Ollon, Switzerland
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
Ollon, Switzerland
- Average rainfall in January:
88mm - Average rainfall in February:
72mm - Average rainfall in March:
90mm - Average rainfall in April:
71mm - Average rainfall in May:
150mm - Average rainfall in June:
133mm
The wettest month (with the highest rainfall) is May (150mm).
The driest month (with the least rainfall) is September (57mm).
Average rainfall days
Ollon, Switzerland
- Average rainfall days in January:
4.5 days - Average rainfall days in February:
5.4 days - Average rainfall days in March:
9.2 days - Average rainfall days in April:
16.4 days - Average rainfall days in May:
23 days - Average rainfall days in June:
22.2 days
- Average rainfall days in July:
22.1 days - Average rainfall days in August:
19.6 days - Average rainfall days in September:
16.3 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
5.5 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
Ollon, Switzerland
- Average snowfall in January:
636mm - Average snowfall in February:
497mm - Average snowfall in March:
537mm - Average snowfall in April:
203mm - Average snowfall in May:
103mm - Average snowfall in June:
3mm
The month with the highest snowfall is December (671mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days
Ollon, Switzerland
- Average snowfall days in January:
15.3 days - Average snowfall days in February:
14.6 days - Average snowfall days in March:
14.5 days - Average snowfall days in April:
7.6 days - Average snowfall days in May:
4.4 days - Average snowfall days in June:
0.2 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.5 days - Average snowfall days in October:
3.4 days - Average snowfall days in November:
9.9 days - Average snowfall days in December:
13 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 / Average sunshine
Ollon, Switzerland
- Average daylight in January:
9h and 1min - Average daylight in February:
10h and 2min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 0min - Average daylight in June:
15h and 4min
- Average daylight in July:
15h and 2min - Average daylight in August:
14h and 1min - Average daylight in September:
12h and 3min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 3min - Average daylight in December:
8h and 4min
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 January:
5h and 2min - Average sunshine in February:
5h and 4min - Average sunshine in March:
6h and 4min - Average sunshine in April:
8h and 5min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 4min - Average sunshine in October:
6h and 5min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 2min
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
Ollon, Switzerland
- Average sunshine days in January:
14.8 days - Average sunshine days in February:
12.5 days - Average sunshine days in March:
12.7 days - Average sunshine days in April:
8.2 days - Average sunshine days in May:
5.3 days - Average sunshine days in June:
4.8 days
- Average sunshine days in July:
5.1 days - Average sunshine days in August:
8.3 days - Average sunshine days in September:
10.5 days - Average sunshine days in October:
16.8 days - Average sunshine days in November:
14.8 days - Average sunshine days in December:
15.7 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
Ollon, Switzerland
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
Ollon, Switzerland
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
Ollon, Switzerland
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).
