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Climate · Arosa

Arosa in May

Cool and wet, as the days lengthen.

Typical weather, averaged over 30 years

May in Arosa is cool: highs near 51°F, lows near 32°F. Rain or snow falls on about five days a week, and the days lengthen by 1 hour 6 minutes from the first week to the last.May in Arosa is cool: highs near 11°C, lows near 0°C. Rain or snow falls on about five days a week, and the days lengthen by 1 hour 6 minutes from the first week to the last.

High
51°F11°Caverage
Low
32°F0°Caverage
Wet days
5a week · 66% of days
Daylight
15h 01mon average

Is May a good time to visit Arosa?

May sits outside Arosa's best months, which run from July to August. Expect cool days and rain or snow on about five days a week.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How May sits in the year

week by week

Temperature

Highs near 51°F in May, against 28°F to 65°F through the year.Highs near 11°C in May, against -2°C to 18°C through the year.

Chance of a wet day

66% of days in May, against 43% to 68% through the year.

Cloud cover

65% cover in May, against 52% to 65% through the year.

Daylight

15h 01m in May, against 8h 36m to 15h 48m through the year.

Week by week, lightly smoothed, with May shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. April43°6°low 23°low -5°4 wet days a weekRain on about four days a week.
  2. May51°11°low 32°low 0°5 wet days a weekRain on about five days a week.
  3. June60°16°low 39°low 4°5 wet days a weekRain on about five days a week.

Where Arosa sits, in May

Europe/Zurich
this place
typical high in May 40°F4°C95°F35°C
Sunrise, mid-May
5:48 AMsets 8:47 PM
Above the sea
1,800 mhigh country
Latitude
46.8°Nnorthern hemisphere
Nearest of ours
Bad Ragaz28 km north-west

The land around Arosa, shaded by its typical high in May, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Switzerland in May

high · low · wet days
See May on the planning mapThe whole year in Arosa

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Arosa. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match.Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match. Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.