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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, the same as December, is a wintry winter month in Olten, Switzerland, with an average temperature varying between -3.3°C (26.1°F) and 2.9°C (37.2°F). January, with its high-temperature average of 2.9°C (37.2°F) and a low-temperature average of -3.3°C (26.1°F), is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is also an icy month in Olten, Switzerland, with an average temperature varying between 3.8°C (38.8°F) and -3.4°C (25.9°F). February's onset sees an average high-temperature of a still cold 3.8°C (38.8°F), exhibiting a slight fluctuation from the previous month. Weather in February »
Weather in March
March, the first month of the spring in Olten, is a chilly month, with an average temperature ranging between max 9°C (48.2°F) and min 0°C (32°F). An escalation in the average high-temperature is seen with the onset of March, moving from an icy 3.8°C (38.8°F) in February to a frosty 9°C (48.2°F). Weather in March »
Weather in April
April is a moderate spring month in Olten, Switzerland, with an average temperature ranging between max 14.3°C (57.7°F) and min 3.1°C (37.6°F). Olten's weather shows a temperature rise with the arrival of April, moving from a chilly 9°C (48.2°F) in March to a moderate 14.3°C (57.7°F). Weather in April »
Weather in May
May, the last month of the spring in Olten, is a refreshing month, with an average temperature varying between 5.8°C (42.4°F) and 17.3°C (63.1°F). As Olten welcomes May, the average high-temperature sees a modest rise, transitioning from a mild 14.3°C (57.7°F) in April to a still refreshing 17.3°C (63.1°F). Weather in May »
Weather in June
The first month of the summer, June, is a pleasant month in Olten, Switzerland, with temperature in the range of an average high of 21.2°C (70.2°F) and an average low of 9.7°C (49.5°F). In Olten, the onset of June comes with a modest high-temperature shift, transitioning from May's comfortable 17.3°C (63.1°F) to a pleasant 21.2°C (70.2°F). Weather in June »
Weather in July
July is a moderately hot summer month in Olten, Switzerland, with temperature in the range of an average low of 11.8°C (53.2°F) and an average high of 23.3°C (73.9°F). Olten experiences the peak of its temperatures in July and August, when the average high-temperatures rise to 23.3°C (73.9°F). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Olten, Switzerland, with an average temperature ranging between max 23.3°C (73.9°F) and min 11.8°C (53.2°F). The peak of Olten's temperatures is noted during July and August, averaging a high-temperature of 23.3°C (73.9°F). Weather in August »
Weather in September
The first month of the autumn, September, is also an enjoyable month in Olten, Switzerland, with an average temperature varying between 18.8°C (65.8°F) and 8.2°C (46.8°F). Olten's weather subtly changes with the onset of September, barely falling from a warm 23.3°C (73.9°F) in August to a comfortable 18.8°C (65.8°F). Weather in September »
Weather in October
October, the same as September, in Olten, Switzerland, is another refreshing autumn month, with an average temperature fluctuating between 13.9°C (57°F) and 4.5°C (40.1°F). Olten's weather in October involves a mild decrease in the average high-temperature, moving down slightly from September's enjoyable 18.8°C (65.8°F) to a mild 13.9°C (57°F). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Olten, Switzerland, with an average temperature fluctuating between 8.3°C (46.9°F) and 1.2°C (34.2°F). The decrease of average high-temperatures is mild in November, with a decline from a refreshing 13.9°C (57°F) in October to a frosty 8.3°C (46.9°F). Weather in November »
Weather in December
December, the first month of the winter in Olten, is still a cold month, with an average temperature varying between 4.2°C (39.6°F) and -1.7°C (28.9°F). A mild drop in Olten's average high-temperature is observed in December, transitioning from a chilly 8.3°C (46.9°F) in November to an icy 4.2°C (39.6°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 is the coldest month in Olten?
Olten, Switzerland, reaches its average lowest temperatures in January, measuring 2.9°C (37.2°F) at the peak and -3.3°C (26.1°F) at the lowest.
What is the most humid month in Olten?
The most humid month in Olten, Switzerland, is January, with an average relative humidity of 88%.
How many days does it rain in Olten?
In Olten, Switzerland, during the entire year, the rain falls for 190.8 days and collects up to 880mm (34.65") of precipitation.
When does it snow in Olten?
Months with snowfall in Olten, Switzerland, are January through May, October through December.
How much does it snow in Olten?
Throughout the year, there are 39.9 snowfall days, and 652mm (25.67") of snow is accumulated.
What are the months with the lowest UV index in Olten?
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2.
When does it snow the most in Olten?
The month with the most snowfall in Olten, Switzerland, is February, when snow falls for 9.7 days and typically aggregates up to 153mm (6.02") of snow.
What are the least humid months in Olten?
April and July, with an average relative humidity of 78%, are the least humid months in Olten, Switzerland.
What is the wettest month in Olten?
May is the month with the most rainfall in Olten, Switzerland. Rain falls for 22.4 days and accumulates 106mm (4.17") of precipitation.
When it does not snow in Olten?
June through September are months without snowfall.
When are the longest days in Olten?
The month with the longest days in Olten is June, with an average of 15h and 54min of daylight.
When is the highest UV index in Olten?
The months with the highest UV index in Olten are June and July, with an average maximum UV index of 5.
What is the hottest time of year in Olten?
July and August, with an average high-temperature of 23.3°C (73.9°F), are marked as the warmest months in Olten, Switzerland.
What month has the most sunshine in Olten?
With an average of 10.4h of sunshine, August has the most sunshine of the year in Olten.
What is the driest month in Olten?
The month with the least rainfall is September, when the rain falls for 14.5 days and typically collects 45mm (1.77") of precipitation.
When is Daylight Saving Time (DST) in Olten?
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends, 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.
What is the month with the shortest days in Olten?
With an average of 8h and 30min of daylight, December has the shortest days of the year.
What is the month with the least sunshine in Olten?
With an average of 5h of sunshine, December has the least sunshine of the year in Olten, Switzerland.
Average temperature
Olten, Switzerland
The warmest months (with the highest average high temperature) are July and August (23.3°C).
The month with the lowest average high temperature is January (2.9°C).
The months with the highest average low temperature are July and August (11.8°C).
The coldest month (with the lowest average low temperature) is February (-3.4°C).
Average pressure
Olten, Switzerland
- Average pressure in January:
1019.5mbar - Average pressure in February:
1017.8mbar - Average pressure in March:
1017.1mbar - Average pressure in April:
1015.6mbar - Average pressure in May:
1016.3mbar - Average pressure in June:
1016.6mbar
- Average pressure in July:
1017.1mbar - Average pressure in August:
1017.7mbar - Average pressure in September:
1018.6mbar - Average pressure in October:
1018.5mbar - Average pressure in November:
1015.8mbar - Average pressure in December:
1020.9mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed
Olten, Switzerland
- Average wind speed in January:
8.3km/h - Average wind speed in February:
8.6km/h - Average wind speed in March:
8.8km/h - Average wind speed in April:
7.5km/h - Average wind speed in May:
7.6km/h - Average wind speed in June:
7km/h
- Average wind speed in July:
6.7km/h - Average wind speed in August:
5.9km/h - Average wind speed in September:
6.4km/h - Average wind speed in October:
6.5km/h - Average wind speed in November:
7.1km/h - Average wind speed in December:
8.5km/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 (5.9km/h).
Average humidity
Olten, Switzerland
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and July (78%).
Average rainfall
Olten, Switzerland
- Average rainfall in January:
59mm - Average rainfall in February:
56mm - Average rainfall in March:
56mm - Average rainfall in April:
56mm - Average rainfall in May:
106mm - Average rainfall in June:
105mm
The wettest month (with the highest rainfall) is May (106mm).
The driest month (with the least rainfall) is September (45mm).
Average rainfall days
Olten, Switzerland
- Average rainfall days in January:
12.8 days - Average rainfall days in February:
10.6 days - Average rainfall days in March:
14.3 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
22.4 days - Average rainfall days in June:
20.3 days
- Average rainfall days in July:
20.7 days - Average rainfall days in August:
18.3 days - Average rainfall days in September:
14.5 days - Average rainfall days in October:
13.2 days - Average rainfall days in November:
12.2 days - Average rainfall days in December:
15.2 days
The month with the highest number of rainy days is May (22.4 days).
The month with the least rainy days is February (10.6 days).
Average snowfall
Olten, Switzerland
The month with the highest snowfall is February (153mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Olten, Switzerland
- Average snowfall days in January:
9.5 days - Average snowfall days in February:
9.7 days - Average snowfall days in March:
6.2 days - Average snowfall days in April:
1.3 days - Average snowfall days in May:
0.4 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.4 days - Average snowfall days in November:
4.5 days - Average snowfall days in December:
7.9 days
The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Olten, Switzerland
- Average daylight in January:
9h and 0min - 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 1min - Average daylight in June:
15h and 5min
- Average daylight in July:
15h and 3min - Average daylight in August:
14h and 1min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 2min - Average daylight in December:
8h and 3min
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 January:
5h and 1min - Average sunshine in February:
5h and 2min - Average sunshine in March:
7h and 1min - Average sunshine in April:
9h and 1min - Average sunshine in May:
9h and 1min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 5min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days
Olten, Switzerland
- Average sunshine days in January:
11.8 days - Average sunshine days in February:
11.4 days - Average sunshine days in March:
12.4 days - Average sunshine days in April:
12.2 days - Average sunshine days in May:
6.6 days - Average sunshine days in June:
6.8 days
- Average sunshine days in July:
7.6 days - Average sunshine days in August:
9.6 days - Average sunshine days in September:
12.2 days - Average sunshine days in October:
15 days - Average sunshine days in November:
13.4 days - Average sunshine days in December:
12.4 days
The month with the most sunshine days is October (15 days).
The month with the least sunshine days is May (6.6 days).
Average UV index
Olten, Switzerland
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover
Olten, Switzerland
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Olten, Switzerland
The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are January, February, May, June, September, October, November and December (8km).
