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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 Arosa, Switzerland, with an average temperature varying between -11.2°C (11.8°F) and -2.8°C (27°F). The lowest temperatures are recorded in January, with averages reaching a high of -2.8°C (27°F) and a low of -11.2°C (11.8°F). Weather in January »
Weather in February
February, the last month of the winter in Arosa, is another freezing cold month, with an average temperature varying between -2.3°C (27.9°F) and -11.3°C (11.7°F). The shift into February records an average high-temperature of a still subzero cold -2.3°C (27.9°F), subtly varied from January's -2.8°C (27°F). Weather in February »
Weather in March
March, the first month of the spring in Arosa, is a wintry month, with temperature in the range of an average high of 0.7°C (33.3°F) and an average low of -7.9°C (17.8°F). The shift from February to March sees a slight increase in the average high-temperature, transitioning from a subzero cold -2.3°C (27.9°F) to an icy 0.7°C (33.3°F). Weather in March »
Weather in April
April, like March, in Arosa, Switzerland, is a wintry spring month, with an average temperature varying between 5.2°C (41.4°F) and -3.6°C (25.5°F). As March transitions into April, a subtle temperature shift is observed, with average highs adjusting from 0.7°C (33.3°F) to a still cold 5.2°C (41.4°F). Weather in April »
Weather in May
May, the last month of the spring in Arosa, is a frosty month, with an average temperature varying between 0.3°C (32.5°F) and 9.3°C (48.7°F). Arosa's transition into May brings a slight rise in the average high-temperature, moving from a wintry 5.2°C (41.4°F) in April to a frosty 9.3°C (48.7°F). Weather in May »
Weather in June
June, the first month of the summer in Arosa, is a mild month, with an average temperature varying between 14.7°C (58.5°F) and 4.2°C (39.6°F). With the transition into June, Arosa experiences an increase in average high-temperatures, moving up from a frosty 9.3°C (48.7°F) in May to a refreshing 14.7°C (58.5°F). Weather in June »
Weather in July
July in Arosa, Switzerland, is a comfortable summer month, with an average temperature ranging between max 17.2°C (63°F) and min 6.1°C (43°F). July and August, with an average high-temperature of 17.2°C (63°F), are marked as the warmest months. Weather in July »
Weather in August
August, the last month of the summer in Arosa, is another refreshing month, with temperature in the range of an average high of 17.2°C (63°F) and an average low of 6.3°C (43.3°F). In Arosa, Switzerland, the months of July and August register the highest average temperatures, peaking at 17.2°C (63°F). Weather in August »
Weather in September
September, the first month of the autumn in Arosa, is still a mild month, with temperature in the range of an average low of 3.1°C (37.6°F) and an average high of 13°C (55.4°F). September heralds a minor drop in average high-temperature, sliding from August's enjoyable 17.2°C (63°F) to a mild 13°C (55.4°F). Weather in September »
Weather in October
October, like September, is another chilly autumn month in Arosa, Switzerland, with an average temperature ranging between min -0.7°C (30.7°F) and max 8°C (46.4°F). In the transition to October, Arosa observes a drop in the average high-temperature, moving from a moderate 13°C (55.4°F) in September to a chilly 8°C (46.4°F). Weather in October »
Weather in November
November, the last month of the autumn in Arosa, is also a wintry month, with temperature in the range of an average high of 2.5°C (36.5°F) and an average low of -5°C (23°F). As November arrives, Arosa's weather displays a decrease in high-temperatures, transitioning from October's frosty 8°C (46.4°F) to a cold 2.5°C (36.5°F). Weather in November »
Weather in December
The first month of the winter, December, is still a freezing cold month in Arosa, Switzerland, with an average temperature ranging between max -1.6°C (29.1°F) and min -9.5°C (14.9°F). The transition into December involves a small decrease in the average high-temperature, dipping slightly from a wintry 2.5°C (36.5°F) in November to a subzero cold -1.6°C (29.1°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 Arosa?
The coldest time of the year is January, with temperatures averaging a high of -2.8°C (27°F) and a low of -11.2°C (11.8°F).
How many days does it rain in Arosa?
In Arosa, Switzerland, during the entire year, the rain falls for 114.4 days and collects up to 366mm (14.41") of precipitation.
When does it snow in Arosa?
January through December are months with snowfall in Arosa.
How much does it snow in Arosa?
In Arosa, Switzerland, during the entire year, snow falls for 98.4 days and aggregates up to 1130mm (44.49") of snow.
What are the months with the least sunshine in Arosa?
January and February, with an average of 5.1h of sunshine, are months with the least sunshine in Arosa.
What are the months with the lowest UV index in Arosa?
January and November, with an average maximum UV index of 1, are months with the lowest UV index in Arosa, Switzerland.
What is the driest month in Arosa?
February is the month with the least rainfall in Arosa, Switzerland. Rain falls for 5.5 days and accumulates 18mm (0.71") of precipitation.
What is the most humid month in Arosa?
The most humid month is March, with an average relative humidity of 92%.
When are the longest days in Arosa?
June has the longest days of the year in Arosa, Switzerland, with an average of 15h and 48min of daylight.
What is the month with the highest UV index in Arosa?
The months with the highest UV index in Arosa are June and July, with an average maximum UV index of 4.
What are the warmest months in Arosa?
The months of July and August see the peak of Arosa's temperatures, averaging a high of 17.2°C (63°F).
What is the least humid month in Arosa?
July is the least humid month, with an average relative humidity of 79%.
When it does not snow in Arosa?
The month with the least snowfall in Arosa, Switzerland, is July, when snow falls for 0.6 days and typically aggregates up to 9mm (0.35") of snow.
What month has the most sunshine in Arosa?
The month with the most sunshine in Arosa, Switzerland, is July, with an average of 10.4h of sunshine.
What is the rainiest month in Arosa?
August is the month with the most rainfall in Arosa, Switzerland. Rain falls for 13.1 days and accumulates 51mm (2.01") of precipitation.
When is Daylight Saving Time (DST) in Arosa?
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.
When does it snow the most in Arosa?
November is the month with the most snowfall. Snow falls for 11.5 days and accumulates 171mm (6.73") of snow.
What is the month with the shortest days in Arosa?
With an average of 8h and 36min of daylight, December has the shortest days of the year.
Average temperature
Arosa, Switzerland
The warmest months (with the highest average high temperature) are July and August (17.2°C).
The month with the lowest average high temperature is January (-2.8°C).
The month with the highest average low temperature is August (6.3°C).
The coldest month (with the lowest average low temperature) is February (-11.3°C).
Average pressure
Arosa, Switzerland
- Average pressure in January:
1019mbar - Average pressure in February:
1017.3mbar - Average pressure in March:
1016.8mbar - Average pressure in April:
1015.4mbar - Average pressure in May:
1015.7mbar - Average pressure in June:
1016.1mbar
- Average pressure in July:
1016.7mbar - Average pressure in August:
1017.6mbar - Average pressure in September:
1018.2mbar - Average pressure in October:
1018.5mbar - Average pressure in November:
1015.9mbar - Average pressure in December:
1020.7mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed
Arosa, Switzerland
- Average wind speed in January:
7.7km/h - Average wind speed in February:
8.1km/h - Average wind speed in March:
7.8km/h - Average wind speed in April:
7.7km/h - Average wind speed in May:
7.5km/h - Average wind speed in June:
7.1km/h
- Average wind speed in July:
6.6km/h - Average wind speed in August:
6.4km/h - Average wind speed in September:
6.6km/h - Average wind speed in October:
7.8km/h - Average wind speed in November:
8.2km/h - Average wind speed in December:
8km/h
The windiest month (with the highest average wind speed) is November (8.2km/h).
The calmest month (with the lowest average wind speed) is August (6.4km/h).
Average humidity
Arosa, Switzerland
The month with the highest relative humidity is March (92%).
The month with the lowest relative humidity is July (79%).
Average rainfall
Arosa, Switzerland
The wettest month (with the highest rainfall) is August (51mm).
The driest month (with the least rainfall) is February (18mm).
Average rainfall days
Arosa, Switzerland
- Average rainfall days in January:
6.9 days - Average rainfall days in February:
5.5 days - Average rainfall days in March:
8.2 days - Average rainfall days in April:
10.2 days - Average rainfall days in May:
14.4 days - Average rainfall days in June:
14.3 days
- Average rainfall days in July:
13.6 days - Average rainfall days in August:
13.1 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
7.8 days - Average rainfall days in November:
4.4 days - Average rainfall days in December:
5.5 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is November (4.4 days).
Average snowfall
Arosa, Switzerland
- Average snowfall in January:
139mm - Average snowfall in February:
115mm - Average snowfall in March:
133mm - Average snowfall in April:
117mm - Average snowfall in May:
130mm - Average snowfall in June:
15mm
The month with the highest snowfall is November (171mm).
The month with the least snowfall is July (9mm).
Average snowfall days
Arosa, Switzerland
- Average snowfall days in January:
13.7 days - Average snowfall days in February:
14 days - Average snowfall days in March:
16.3 days - Average snowfall days in April:
9.9 days - Average snowfall days in May:
8.4 days - Average snowfall days in June:
1.3 days
- Average snowfall days in July:
0.6 days - Average snowfall days in August:
0.4 days - Average snowfall days in September:
2.2 days - Average snowfall days in October:
6.5 days - Average snowfall days in November:
11.5 days - Average snowfall days in December:
13.6 days
The month with the highest number of snowfall days is March (16.3 days).
The month with the least snowfall days is August (0.4 days).
Average daylight / Average sunshine
Arosa, 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 1min - Average sunshine in February:
5h and 1min - Average sunshine in March:
6h and 0min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 5min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 3min - 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 February (Average sunshine: 5h and 6min).
Average sunshine days
Arosa, Switzerland
- Average sunshine days in January:
16.5 days - Average sunshine days in February:
13.6 days - Average sunshine days in March:
12.8 days - Average sunshine days in April:
12.1 days - Average sunshine days in May:
10.4 days - Average sunshine days in June:
11.9 days
- Average sunshine days in July:
14.3 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
18.2 days - Average sunshine days in November:
17 days - Average sunshine days in December:
17.1 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is May (10.4 days).
Average UV index
Arosa, 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 November (UV index 1).
Average cloud cover
Arosa, Switzerland
The month with the most cloud cover is March (Cloud cover 52).
The months with the least cloud cover are August and October (Cloud cover 40).
Average visibility
Arosa, Switzerland
The months with the highest visibility are July and August (8km).
The months with the lowest visibility are January, February and March (6km).
