Weather in Arosa: September
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Average day temperature: | 55.9°F |
| Average night temperature: | 40.4°F | |
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Number of sunny days: | 13 days |
| Day length: | 11.7 - 13.3 hours | |
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Number of rainy days: | 4 days |
| Precipitation totals: | 2.5 in. | |
| more information | ||
14 days
forecast
forecast
| Arosa |
weather in
October
October
| Arosa |
Air temperature in September, °F
Show year:
2026
2025
2024
The highest day temperature during September of 2026 was 68°F. At the same time the lowest night temperature was 35°F. Daily and nightly averages during September were 56.4°F and 43.1°F.
Sunny, partly cloudy and cloudy days
Number of sunny, partly cloudy and cloudy days in September is almost equal.
Precipitation total in September, in.
Precipitation total value in Arosa in September is 2.3 in. Other months of the year show relatively similar values.
Wind speed in September, mph
The average wind speed value in September is 4.0 mph It makes September lest windy month of the year.
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 6.9.
Best time for vacation in Arosa
Arosa on a weather map
Places in Switzerland:
Name
°F
24 Hours Forecast
Arosa
Local time: 07:20
October 09, friday
0900
39°F
E
1 mph
1 mph
1200
45°F
E
4 mph
4 mph
1500
48°F
SE
4 mph
4 mph
1800
45°F
SE
3 mph
3 mph
2100
43°F
SE
2 mph
2 mph
October 10, saturday
0000
36°F
NE
1 mph
1 mph
0300
39°F
NW
1 mph
1 mph
0600
41°F
NW
1 mph
1 mph
