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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 an icy winter month in Alterswil, Switzerland, with an average temperature fluctuating between 2.2°C (36°F) and -4.5°C (23.9°F). January is the month when Alterswil, Switzerland, sees the lowest average temperatures, with a high of 2.2°C (36°F) and a low of -4.5°C (23.9°F). Weather in January »
Weather in February
February, the last month of the winter in Alterswil, is also a wintry month, with an average temperature ranging between min -4.6°C (23.7°F) and max 2.8°C (37°F). February's advent denotes a minor fluctuation in the average high-temperature to a still cold 2.8°C (37°F) from January's 2.2°C (36°F). Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Alterswil, Switzerland, with an average temperature varying between -1.1°C (30°F) and 7.4°C (45.3°F). In Alterswil, the average high-temperature in March slightly increases from an icy 2.8°C (37°F) in February to a frosty 7.4°C (45.3°F). Weather in March »
Weather in April
April in Alterswil, Switzerland, is a fresh spring month, with an average temperature varying between 12.8°C (55°F) and 2.8°C (37°F). The onset of April brings a rise in the average high-temperature, elevating from a chilly 7.4°C (45.3°F) in March to a fresh 12.8°C (55°F). Weather in April »
Weather in May
May, the last month of the spring in Alterswil, is a mild month, with an average temperature ranging between max 15.5°C (59.9°F) and min 5°C (41°F). May's weather records an average high-temperature of a moderate 15.5°C (59.9°F), showing little deviation from April. Weather in May »
Weather in June
June, the first month of the summer in Alterswil, is an enjoyable month, with an average temperature varying between 8.8°C (47.8°F) and 19.7°C (67.5°F). The shift into June is characterized by a subtle rise in the average high-temperature, transitioning from May's refreshing 15.5°C (59.9°F) to an enjoyable 19.7°C (67.5°F). Weather in June »
Weather in July
July in Alterswil, Switzerland, is an agreeable summer month, with an average temperature varying between 10.8°C (51.4°F) and 22°C (71.6°F). With an average high-temperature of 22°C (71.6°F) and an average low-temperature of 10.8°C (51.4°F), July is the warmest month. Weather in July »
Weather in August
August, the last month of the summer in Alterswil, is also an agreeable month, with an average temperature fluctuating between 21.9°C (71.4°F) and 10.7°C (51.3°F). Alterswil indicates an average high-temperature of a still pleasant 21.9°C (71.4°F) in August, showing minor variation from July's 22°C (71.6°F). Weather in August »
Weather in September
The first month of the autumn, September, is still a comfortable month in Alterswil, Switzerland, with an average temperature ranging between min 7.4°C (45.3°F) and max 17.6°C (63.7°F). September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from an agreeable 21.9°C (71.4°F) in August to a refreshing 17.6°C (63.7°F). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Alterswil, Switzerland, with an average temperature varying between 13.3°C (55.9°F) and 3.9°C (39°F). A modest decline in the average high-temperature is seen during October, decreasing from a comfortable 17.6°C (63.7°F) in September to a still refreshing 13.3°C (55.9°F). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Alterswil, Switzerland, with temperature in the range of an average high of 7.7°C (45.9°F) and an average low of 0.7°C (33.3°F). In Alterswil, the average high-temperature in November drops from a refreshing 13.3°C (55.9°F) in October to a chilly 7.7°C (45.9°F). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Alterswil, Switzerland, with temperature in the range of an average high of 3.7°C (38.7°F) and an average low of -2.7°C (27.1°F). In December, the meteorological conditions change slightly, with the average high-temperature moving from a frosty 7.7°C (45.9°F) in November to an icy 3.7°C (38.7°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 month is the coldest in Alterswil?
January brings the lowest temperatures, with an average high of 2.2°C (36°F) and an average low of -4.5°C (23.9°F).
What are the most humid months in Alterswil?
January and February, with an average relative humidity of 86%, are most humid months in Alterswil.
How many days does it rain in Alterswil?
In Alterswil, Switzerland, during the entire year, the rain falls for 205.3 days and collects up to 992mm (39.06") of precipitation.
When does it snow in Alterswil?
Months with snowfall are January through May, October through December.
How much does it snow in Alterswil?
In Alterswil, Switzerland, during the entire year, snow falls for 44.9 days and aggregates up to 818mm (32.2") of snow.
When is the lowest UV index in Alterswil?
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the least humid month in Alterswil?
The months with the lowest humidity in Alterswil are April, July and August, with an average relative humidity of 79%.
What is the rainiest month in Alterswil?
The month with the most rainfall is June, when the rain falls for 22.4 days and typically aggregates up to 117mm (4.61") of precipitation.
When it does not snow in Alterswil?
June through September are months without snowfall in Alterswil, Switzerland.
When are the longest days in Alterswil?
June has the longest days of the year in Alterswil, Switzerland, with an average of 15h and 48min of daylight.
What is the month with the highest UV index in Alterswil?
The months with the highest UV index in Alterswil are June and July, with an average maximum UV index of 5.
What month is the hottest in Alterswil?
Alterswil's July weather, marked by an average high temperature of 22°C (71.6°F) and an average low temperature of 10.8°C (51.4°F), is the warmest in the year.
What are the months with the most sunshine in Alterswil?
July and August, with an average of 10.3h of sunshine, are months with the most sunshine in Alterswil.
What is the driest month in Alterswil?
September is the month with the least rainfall. Rain falls for 16.5 days and accumulates 53mm (2.09") of precipitation.
When is Daylight Saving Time (DST) in Alterswil?
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Alterswil, 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 snowiest month in Alterswil?
The month with the most snowfall is December, when snow falls for 8.6 days and typically aggregates up to 192mm (7.56") of snow.
What is the month with the shortest days in Alterswil?
With an average of 8h and 36min of daylight, December has the shortest days of the year.
What is the month with the least sunshine in Alterswil?
The month with the least sunshine in Alterswil, Switzerland, is December, with an average of 5.2h of sunshine.
Average temperature
Alterswil, Switzerland
The warmest month (with the highest average high temperature) is July (22°C).
The month with the lowest average high temperature is January (2.2°C).
The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is February (-4.6°C).
Average pressure
Alterswil, Switzerland
- Average pressure in January:
1019.5mbar - Average pressure in February:
1017.7mbar - Average pressure in March:
1017.1mbar - Average pressure in April:
1015.5mbar - Average pressure in May:
1016.2mbar - Average pressure in June:
1016.5mbar
- Average pressure in July:
1017.1mbar - Average pressure in August:
1017.8mbar - Average pressure in September:
1018.6mbar - Average pressure in October:
1018.5mbar - Average pressure in November:
1015.9mbar - Average pressure in December:
1021.1mbar
The month with the highest atmospheric pressure is December (1021.1mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed
Alterswil, Switzerland
- Average wind speed in January:
9.5km/h - Average wind speed in February:
9.9km/h - Average wind speed in March:
9.8km/h - Average wind speed in April:
8.1km/h - Average wind speed in May:
8.2km/h - Average wind speed in June:
7.5km/h
- Average wind speed in July:
6.9km/h - Average wind speed in August:
6.3km/h - Average wind speed in September:
7.2km/h - Average wind speed in October:
7.3km/h - Average wind speed in November:
8.3km/h - Average wind speed in December:
9.8km/h
The windiest month (with the highest average wind speed) is February (9.9km/h).
The calmest month (with the lowest average wind speed) is August (6.3km/h).
Average humidity
Alterswil, Switzerland
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, July and August (79%).
Average rainfall
Alterswil, Switzerland
- Average rainfall in January:
71mm - Average rainfall in February:
64mm - Average rainfall in March:
67mm - Average rainfall in April:
60mm - Average rainfall in May:
109mm - Average rainfall in June:
117mm
The wettest month (with the highest rainfall) is June (117mm).
The driest month (with the least rainfall) is September (53mm).
Average rainfall days
Alterswil, Switzerland
- Average rainfall days in January:
14.8 days - Average rainfall days in February:
12.2 days - Average rainfall days in March:
14.8 days - Average rainfall days in April:
18.3 days - Average rainfall days in May:
23.1 days - Average rainfall days in June:
22.4 days
- Average rainfall days in July:
22.3 days - Average rainfall days in August:
20.8 days - Average rainfall days in September:
16.5 days - Average rainfall days in October:
13.4 days - Average rainfall days in November:
12.8 days - Average rainfall days in December:
13.9 days
The month with the highest number of rainy days is May (23.1 days).
The month with the least rainy days is February (12.2 days).
Average snowfall
Alterswil, Switzerland
The month with the highest snowfall is December (192mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Alterswil, Switzerland
- Average snowfall days in January:
10.6 days - Average snowfall days in February:
10.9 days - Average snowfall days in March:
7 days - Average snowfall days in April:
1.5 days - Average snowfall days in May:
0.3 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:
0.8 days - Average snowfall days in November:
5.2 days - Average snowfall days in December:
8.6 days
The month with the highest number of snowfall days is February (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Alterswil, 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 2min - 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 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January:
5h and 2min - Average sunshine in February:
5h and 4min - Average sunshine in March:
7h and 0min - Average sunshine in April:
9h and 1min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 4min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days
Alterswil, Switzerland
- Average sunshine days in January:
11.8 days - Average sunshine days in February:
10.3 days - Average sunshine days in March:
11.6 days - Average sunshine days in April:
8.9 days - Average sunshine days in May:
5.3 days - Average sunshine days in June:
4.3 days
- Average sunshine days in July:
5.8 days - Average sunshine days in August:
7.1 days - Average sunshine days in September:
10.3 days - Average sunshine days in October:
14.6 days - Average sunshine days in November:
13 days - Average sunshine days in December:
12.2 days
The month with the most sunshine days is October (14.6 days).
The month with the least sunshine days is June (4.3 days).
Average UV index
Alterswil, 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, March, November and December (UV index 2).
Average cloud cover
Alterswil, Switzerland
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Alterswil, Switzerland
The months with the highest visibility are March, April and August (9km).
The months with the lowest visibility are January, February, May, June, July, September, October, November and December (8km).
