The best times to visit Arosa for ideal weather are
June 25th to August 19th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Arosa Travel Guide
Other Arosa Travel Info
Weather in Arosa
Average temperatures in Arosa vary drastically. Considering humidity, temperatures feel cold for most of the year with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 21st percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Arosa, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally early July where highs are regularly around 67.1°F (19.5°C) with temperatures rarely dropping below 50.9°F (10.5°C) at night.
Arosa Temperatures (Fahrenheit)
Arosa Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Arosa Perceived Temperature (F)
Arosa Perceived Temperature (C)
Average Arosa Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Arosa are February, November, and then March. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid March. For example, on the week of March 12th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early May with an average of 4 days of significant precipitation the week of April 30th.
When can you find snow in Arosa? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Arosa.
Snow on the Ground
The graph below shows the average snow on the ground in Arosa (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Arosa has some very humid months, and above average humidity throughout the year. The least humid month is March (62.7% relative humidity), and the most humid month is September (79.8%).
Wind in Arosa is usually calm. The windiest month is May, followed by April and July. May’s average wind speed of around 7.5 knots (8.6 MPH or 13.8 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late May where average top sustained speeds reach 15 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Arosa.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||6.9||Light breeze||11.8||Significant breeze|
|Feb||6.6||Light breeze||11.7||Significant breeze|
|Mar||6.9||Light breeze||11.8||Significant breeze|
|Apr||7.1||Gentle breeze||12.9||Significant breeze|
|May||7.5||Gentle breeze||13.3||Significant breeze|
|Jun||6.5||Light breeze||12.6||Significant breeze|
|Jul||7||Gentle breeze||13.2||Significant breeze|
|Aug||6.6||Light breeze||12.5||Significant breeze|
|Sep||6.6||Light breeze||12.4||Significant breeze|
|Oct||6.1||Light breeze||10.7||Gentle breeze|
|Nov||6.1||Light breeze||10.3||Significant breeze|
|Dec||6.4||Light breeze||10.7||Gentle breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Arosa?
Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for Switzerland; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Aug 22, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Arosa, Switzerland is May, followed by January and June. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Arosa in November. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Arosa Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 54.2°F (12.3°C) and 36.5°F (2.5°C) with warmer temperatures in the later months. Rain is somewhat common with 3 to 9 days of significant precipitation per month. Spring is the busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have cold weather with high temperatures that are brisk. These months see the most precipitation with 8 to 10 days of precipitation per month. June – August is the second busiest season for tourism in Arosa, so lodging and other accommodations may cost slightly more.
Fall (September through November)
Fall daily highs range from 58.7°F (14.8°C) and 36.8°F (2.7°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 2 to 8 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.
Winter (December through February)
Weather is far too cold this time of year in Arosa to be enjoyable for warm weather travelers. The average high during this season is between 37.2°F (2.9°C) and 23°F (-5°C). On average, it rains or snows a smalll amount: 2 to 5 times per month. These times of year are fairly slow with tourists.