Arosa Weather in May
In Arosa, May brings low daytime temperatures around 11°C (52°F), with nights cooling to 1°C (34°F). Expect quite a bit of rainfall this month.
Rainfall in Arosa in May
Records from the past 30 years suggest around 19 days of rain, with 152 mm (6 in) average for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Arosa in May
Temperatures in Arosa in May top out at 11°C (52°F) and drop to 1°C (34°F) overnight. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. With overnight lows of 1°C (34°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Arosa in May
The city usually sees around 155 hours of sunlight, indicating a moderately sunny period.
Wind Speed in Arosa in May
Average wind conditions reach 2 m/s (4 knots) in May. This creates comfortable weather with light winds that gently move vegetation. Keep in mind this is an average. Daily conditions range from near-calm to more noticeable wind.May in Arosa can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Switzerland, check out our Arosa's climate page.
Arosa Temperature in May
Min Temperature
1°C (34°F)
Max Temperature
11°C (52°F)
Chance of Rain
64%
Precipitation
152 mm (6 in)
Rainy days
19 days
Humidity
71% *
Windspeed
2 m/s (4 knots) *
Sunshine
155 hours *
Percentage Sunshine
45% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Arosa typically rise from around 12°C (54°F) at the start of May to approximately 15°C (59°F) by the end. Nights are cold, with lows typically ranging from 2°C (36°F) to 6°C (43°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Arosa in May
Browse day-by-day weather records for Arosa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Arosa historical weather extremes in May
According to our 49 years of weather records for Arosa, the following extremes were recorded between 1976 and 2025.
- Arosa recorded its highest May temperature of 29°C (84°F) on May 29, 2001.
- The coldest night in May in Arosa was on May 1, 1989, with a minimum of -10°C (14°F).
Best Places in Switzerland in May
Find out more about the weather in Switzerland and which places have the best travel conditions in this month. See all of Switzerland in May →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Arosa in May
Pack for changing conditions in Arosa in May. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Arosa in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Switzerland, check out our Arosa's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Arosa climate overview or explore weather in Switzerland.
