Climate and monthly weather forecastAlten, Switzerland
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Alten, Switzerland, with an average temperature ranging between min -3.3°C (26.1°F) and max 3.3°C (37.9°F). In Alten, January is the month with the lowest recorded average temperatures, measuring a high of 3.3°C (37.9°F) and a low of -3.3°C (26.1°F). Weather in January »Weather in February
The last month of the winter, February, is another cold month in Alten, Switzerland, with an average temperature fluctuating between 4.4°C (39.9°F) and -3.1°C (26.4°F). Alten registers an average high-temperature of a still cold 4.4°C (39.9°F) with the arrival of February, showing minor deviation from the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Alten, Switzerland, with an average temperature ranging between max 9.6°C (49.3°F) and min 0°C (32°F). With the onset of March, the average high-temperature slightly shifts from February's cold 4.4°C (39.9°F) to a frosty 9.6°C (49.3°F). Weather in March »Weather in April
April is a refreshing spring month in Alten, Switzerland, with an average temperature varying between 3.3°C (37.9°F) and 15.8°C (60.4°F). As April sets, the average high-temperature shows an increase, moving up from a chilly 9.6°C (49.3°F) in March to a moderate 15.8°C (60.4°F). Weather in April »Weather in May
May, the last month of the spring in Alten, is a refreshing month, with an average temperature ranging between min 6.1°C (43°F) and max 18.4°C (65.1°F). May is marked by an average high-temperature of an enjoyable 18.4°C (65.1°F), almost identical to the preceding month. Weather in May »Weather in June
The first month of the summer, June, is an agreeable month in Alten, Switzerland, with an average temperature ranging between max 22.7°C (72.9°F) and min 10.1°C (50.2°F). A minor escalation in the average high-temperature is seen with the onset of June, moving from a comfortable 18.4°C (65.1°F) in May to an agreeable 22.7°C (72.9°F). Weather in June »Weather in July
July in Alten, Switzerland, is a warm summer month, with an average temperature ranging between min 12.1°C (53.8°F) and max 24.6°C (76.3°F). The warmest temperatures occur during July, when averages reach a peak of 24.6°C (76.3°F) and a low of 12.1°C (53.8°F). Weather in July »Weather in August
August, the last month of the summer in Alten, is also a moderately hot month, with temperature in the range of an average low of 12.1°C (53.8°F) and an average high of 24.4°C (75.9°F). The introduction of August notes a subtle temperature variation to a still warm 24.4°C (75.9°F) from July's 24.6°C (76.3°F). Weather in August »Weather in September
September, the first month of the autumn in Alten, is also an enjoyable month, with temperature in the range of an average low of 8.1°C (46.6°F) and an average high of 19.6°C (67.3°F). The onset of September results in a small decrease in the average high-temperature, moderately receding from a warm 24.4°C (75.9°F) in August to a refreshing 19.6°C (67.3°F). Weather in September »Weather in October
October, like September, is another refreshing autumn month in Alten, Switzerland, with an average temperature fluctuating between 4.6°C (40.3°F) and 14.4°C (57.9°F). As October begins, there is a decrease in the average high-temperature, falling from a refreshing 19.6°C (67.3°F) in September to a moderate 14.4°C (57.9°F). Weather in October »Weather in November
November, the last month of the autumn in Alten, is also a frosty month, with an average temperature ranging between max 8.7°C (47.7°F) and min 1.2°C (34.2°F). November brings a decrease in the average high-temperature, shifting from a refreshing 14.4°C (57.9°F) in October to a chilly 8.7°C (47.7°F). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Alten, Switzerland, with an average temperature varying between -1.8°C (28.8°F) and 4.2°C (39.6°F). During the shift to December, a minor reduction in average high-temperature is observed, shifting from a chilly 8.7°C (47.7°F) in November to a cold 4.2°C (39.6°F). Weather in December »Updated: Feb 4, 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
January stands out as Alten's coldest month, with temperatures ranging between an average high of 3.3°C (37.9°F) and a low of -3.3°C (26.1°F).
The most humid month in Alten, Switzerland, is January, with an average relative humidity of 88%.
Throughout the year, there are 155.4 rainfall days, and 704mm (27.72") of precipitation is accumulated.
January through May, October through December are months with snowfall in Alten, Switzerland.
January is the month with the most snowfall in Alten. Snow falls for 11.3 days and accumulates 182mm (7.17") of snow.
In Alten, during the entire year, snow falls for 42.6 days and aggregates up to 729mm (28.7") of snow.
The months with the lowest UV index in Alten, Switzerland, are January, February, October through December, with an average maximum UV index of 2.
The month with the least sunshine is February, with an average of 4.5h of sunshine.
April and July, with an average relative humidity of 76%, are the least humid months.
In Alten, snow does not fall in June through September.
The month with the longest days in Alten, Switzerland, is June, with an average of 15h and 54min of daylight.
The month with the highest UV index is June, with an average maximum UV index of 6.
July tends to be the warmest month in Alten, with temperatures averaging a daily high of 24.6°C (76.3°F) and a low of 12.1°C (53.8°F).
The months with the most sunshine are July and August, with an average of 10.2h of sunshine.
The month with the least rainfall is September, when the rain falls for 9.9 days and typically collects 29mm (1.14") of precipitation.
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Alten, 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.
December is the month with the most rainfall. Rain falls for 13.9 days and accumulates 82mm (3.23") of precipitation.
With an average of 8h and 30min of daylight, December has the shortest days of the year.
Average temperature
Alten, Switzerland
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).
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
Alten, Switzerland
- Average pressure in January:
1019.3mbar - Average pressure in February:
1017.7mbar - Average pressure in March:
1017.2mbar - Average pressure in April:
1015.7mbar - Average pressure in May:
1016.2mbar - Average pressure in June:
1016.6mbar
- Average pressure in July:
1017mbar - Average pressure in August:
1017.7mbar - Average pressure in September:
1018.7mbar - Average pressure in October:
1018.6mbar - Average pressure in November:
1015.8mbar - Average pressure in December:
1020.8mbar
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
Alten, Switzerland
- Average wind speed in January:
7.8km/h - Average wind speed in February:
8.3km/h - Average wind speed in March:
8.8km/h - Average wind speed in April:
7.5km/h - Average wind speed in May:
7.7km/h - Average wind speed in June:
7.1km/h
- Average wind speed in July:
7km/h - Average wind speed in August:
6.2km/h - Average wind speed in September:
6.5km/h - Average wind speed in October:
6.5km/h - Average wind speed in November:
6.8km/h - Average wind speed in December:
7.8km/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
Alten, Switzerland
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall
Alten, Switzerland
The wettest month (with the highest rainfall) is December (82mm).
The driest month (with the least rainfall) is September (29mm).
Average rainfall days
Alten, Switzerland
- Average rainfall days in January:
11.3 days - Average rainfall days in February:
10.1 days - Average rainfall days in March:
13.7 days - Average rainfall days in April:
13.6 days - Average rainfall days in May:
18.4 days - Average rainfall days in June:
16.3 days
- Average rainfall days in July:
15.8 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
9.9 days - Average rainfall days in October:
10.2 days - Average rainfall days in November:
9.9 days - Average rainfall days in December:
13.9 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
Alten, Switzerland
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
Alten, Switzerland
- Average snowfall days in January:
11.3 days - Average snowfall days in February:
10.8 days - Average snowfall days in March:
6.3 days - Average snowfall days in April:
1.3 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:
0.3 days - Average snowfall days in November:
4.2 days - Average snowfall days in December:
8.1 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 / Average sunshine
Alten, Switzerland
- Average daylight in January:
8h and 54min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 6min - Average daylight in June:
15h and 54min
- Average daylight in July:
15h and 30min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 18min - Average daylight in December:
8h and 30min
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:
4h and 36min - Average sunshine in February:
4h and 30min - Average sunshine in March:
6h and 30min - Average sunshine in April:
9h and 0min - Average sunshine in May:
8h and 54min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 12min - Average sunshine in September:
8h and 42min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 36min
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
Alten, Switzerland
- Average sunshine days in January:
11.8 days - Average sunshine days in February:
11.1 days - Average sunshine days in March:
12.8 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
11.7 days
- Average sunshine days in July:
14.3 days - Average sunshine days in August:
16.9 days - Average sunshine days in September:
19 days - Average sunshine days in October:
19.8 days - Average sunshine days in November:
16 days - Average sunshine days in December:
11.5 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
Alten, Switzerland
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
Alten, Switzerland
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
Alten, Switzerland
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).
