AI-generatedArosa at a glance
- Best time
- Jul – Aug
- Warmest month
- Jul · 17°
- Sunshine a year
- 1,690 h
- Rain a year
- 1,432 mm
- Climate
- Mountain
- Time zone
- UTC+1 / UTC+2
- Elevation
- 1,775 m
Climate in Arosa
Arosa has a mountain climate: summers are fresh, winters cold and snowy. July is the warmest month with average highs of 17 °C, while January is the coolest at −3 °C. With around 1,690 hours of sunshine a year, Arosa is moderately sunny; July is the sunniest month with 6.3 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Poor
Best time to visit: July – August
Best for skiing: November – April
Keep in mindSnow
A typical day in October
- Morning, 08:00: about 1°
- Midday, 13:00: about 8°
- Afternoon, 16:00: about 9°
- Evening, 20:00: about 5°
- Night, 23:00: about 3°
07:3718:36
Cold evenings: bring a warm jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:19–08:19 · evening 17:55–18:55
- Blue hour
- Morning 07:07–07:19 · evening 18:55–19:07
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
What is the weather like in Arosa in October?
In October, Arosa is cold: daytime highs average 9 °C, and nights cool down to about 0 °C. Expect around 4 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 115 mm in total. Snow falls on about 5 days. All in all, October is not an ideal month for a holiday in Arosa.
More details for October
- Daylight
- 10 h 59 min07:37 – 18:36
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 7 km/haverage daily peakAll months
- Cloud cover
- 70 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 5 days1 cm or more of fresh snowAll months
- Time zone
- UTC+2Europe/Zurich
How the score comes together
- Temperatureweight 50 %28 %
- Sunshineweight 20 %23 %
- Few rainy daysweight 30 %41 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.
What to pack in October
- Sunscreen
- Warm jacket
- Hat, scarf & gloves
- Rain jacket or umbrella
Sunshine hours in Arosa
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 4.4 of 11.0 hours of daylight in Arosa, 40 % of the day.
Sunshine hours: measured at the weather station 2 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Arosa
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 3 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 9).
Minutes until sunburn in October
- Very fair skin
- about 45 min
- Fair skin
- about 55 min
- Light brown skin
- about 75 min
- Olive skin
- about 100 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Rain in Arosa: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Arosa has about 12 rainy days with 115 mm of rain in total.
Wind and clouds in Arosa
How breezy and how cloudy Arosa is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Arosa typically peaks at 7 km/h during the day: Beaufort 2, light air.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 70 % of the sky over Arosa: mostly cloudy, with about 4.4 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Snow in Arosa
When Arosa is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.
Snow calendar
- hardly any
- possible
- likely
- very likely
In October, Arosa has about 5 days with at least 1 cm of fresh snow, 33 cm in total. The chance of seeing snow during a week's stay is 47 out of 100: possible. On the slopes at about 2,400 m, the ski season usually runs Nov – Apr.
Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Arosa
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Frost below 0°
- Cold 0–8°
- Cool 8–15°
ColdOctober: nights around 0°. The room should be heated.
The coolest nights are in January (−12°), the warmest in July (8°). Nights fall below 8 °C on average from September to June, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 13 | −3° | −12° | 3.6 h | 13 | 79 |
| FebruaryFeb | 17 | −1° | −11° | 4.0 h | 12 | 69 |
| MarchMar | 13 | 2° | −7° | 4.6 h | 14 | 89 |
| AprilApr | 13 | 5° | −3° | 4.9 h | 15 | 106 |
| MayMay | 25 | 10° | 2° | 5.0 h | 20 | 151 |
| JuneJun | 56 | 16° | 6° | 5.7 h | 19 | 163 |
| JulyJul | 61 | 17° | 8° | 6.3 h | 18 | 165 |
| AugustAug | 64 | 17° | 8° | 5.9 h | 16 | 168 |
| SeptemberSep | 52 | 13° | 4° | 5.1 h | 13 | 118 |
| OctoberOct | 31 | 9° | 0° | 4.4 h | 12 | 115 |
| NovemberNov | 10 | 2° | −6° | 3.2 h | 14 | 122 |
| DecemberDec | 10 | −2° | −11° | 2.9 h | 13 | 88 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
46.78° N, 9.68° E · 1,775 m · Europe/Zurich
Best time to visit Arosa
The best time to visit Arosa is from July to August. Hiking and mountain trips are best from June to September, when the trails are largely free of snow. Rain is most frequent from May to July; the wettest month is August with 168 mm.
Arosa through the seasons
How the weather changes over the seasons, with averages for each.
Arosa in spring
Mar – May
Poor
- 2–10 °C by day
- 5 h of sun a day
- 49 rainy days in all
Arosa in summer
Jun – Aug
Good
- 16–17 °C by day
- 6 h of sun a day
- 53 rainy days in all
Arosa in autumn
Sep – Nov
Poor
- 2–13 °C by day
- 4 h of sun a day
- 39 rainy days in all
Arosa in winter
Dec – Feb
Poor
- -3–-1 °C by day
- 4 h of sun a day
- 38 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Arosa for you.
Your best months: July – August
Based on the climate averages; tap a month to see its details.
Compare two months in Arosa
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
August has the better holiday weather in Arosa: score 64 against 31. In August, days are 8 °C warmer than in October. August has 4 more rainy days. The sun shines 2 hours longer a day in August.
| Month | October | August |
|---|---|---|
| Weather score | 31 | 64better |
| Day high | 9° | 17° |
| Night low | 0° | 8° |
| Sunshine | 4.4 h | 5.9 hbetter |
| Rainy days | 12better | 16 |
| Rainfall | 115 mmbetter | 168 mm |
Based on the climate averages 1996–2025.
Which month for what?
Hiking & mountain trips
Jun – Sep
13–27 °C in the village, little snow
Rainy months
May – Jul
18 or more rainy days, often short showers and storms
Snow
Sep – May
Snow on 2 or more days
Best for skiing
Nov – Apr
Estimated snow conditions on slopes at about 2,400 m, from snowfall, temperature and sunshine. A climate estimate, not a snow report.
Arosa month by month
The typical weather for every month at a glance.
13January-3° · 4 h
In January, Arosa is freezing cold: daytime highs average −3 °C, and nights often drop below freezing (−12 °C). The sun is scarce, with only about 4 hours a day. Precipitation, often as snow, falls on about 13 days, totalling 79 mm. Snow falls on about 12 days. All in all, January is not an ideal month for a holiday in Arosa.
Arosa in January17February-1° · 4 h
In February, Arosa is freezing cold: daytime highs average −1 °C, and nights often drop below freezing (−11 °C). Expect around 4 hours of sunshine a day. Precipitation, often as snow, falls on about 12 days, totalling 69 mm. Snow falls on about 11 days. All in all, February is not an ideal month for a holiday in Arosa.
Arosa in February13March2° · 5 h
In March, Arosa is freezing cold: daytime highs average 2 °C, and nights often drop below freezing (−7 °C). Expect around 5 hours of sunshine a day. Precipitation, often as snow, falls on about 14 days, totalling 89 mm. Snow falls on about 13 days. All in all, March is not an ideal month for a holiday in Arosa.
Arosa in March13April5° · 5 h
In April, Arosa is cold: daytime highs average 5 °C, and nights often drop below freezing (−3 °C). Expect around 5 hours of sunshine a day. It rains often – on about 15 days, adding up to 106 mm. Snow falls on about 10 days. All in all, April is not an ideal month for a holiday in Arosa.
Arosa in April25May10° · 5 h
In May, Arosa is cold: daytime highs average 10 °C, and nights cool down to about 2 °C. Expect around 5 hours of sunshine a day. It rains often – on about 20 days, adding up to 151 mm. Snow falls on about 6 days. All in all, May is not an ideal month for a holiday in Arosa.
Arosa in May56June16° · 6 h
In June, Arosa is cool: daytime highs average 16 °C, and nights cool down to about 6 °C. Expect around 6 hours of sunshine a day. It rains often – on about 19 days, adding up to 163 mm. All in all, June is a so-so month for a holiday in Arosa.
Arosa in June61July17° · 6 h
In July, Arosa is mild: daytime highs average 17 °C, and nights cool down to about 8 °C. Expect around 6 hours of sunshine a day. It rains often – on about 18 days, adding up to 165 mm. All in all, July is a good month for a holiday in Arosa.
Arosa in July64August17° · 6 h
In August, Arosa is mild: daytime highs average 17 °C, and nights cool down to about 8 °C. Expect around 6 hours of sunshine a day. It rains often – on about 16 days, adding up to 168 mm. All in all, August is a good month for a holiday in Arosa.
Arosa in August52September13° · 5 h
In September, Arosa is cool: daytime highs average 13 °C, and nights cool down to about 4 °C. Expect around 5 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 118 mm in total. Snow falls on about 3 days. All in all, September is a so-so month for a holiday in Arosa.
Arosa in September31October9° · 4 h
In October, Arosa is cold: daytime highs average 9 °C, and nights cool down to about 0 °C. Expect around 4 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 115 mm in total. Snow falls on about 5 days. All in all, October is not an ideal month for a holiday in Arosa.
Arosa in October10November2° · 3 h
In November, Arosa is freezing cold: daytime highs average 2 °C, and nights often drop below freezing (−6 °C). The sun is scarce, with only about 3 hours a day. Precipitation, often as snow, falls on about 14 days, totalling 122 mm. Snow falls on about 12 days. All in all, November is not an ideal month for a holiday in Arosa.
Arosa in November10December-2° · 3 h
In December, Arosa is freezing cold: daytime highs average −2 °C, and nights often drop below freezing (−11 °C). The sun is scarce, with only about 3 hours a day. Precipitation, often as snow, falls on about 13 days, totalling 88 mm. Snow falls on about 12 days. All in all, December is not an ideal month for a holiday in Arosa.
Arosa in DecemberArosa compared
Put Arosa side by side with another destination.
No destination found
Arosa vs. Davos
In October the holiday weather in Arosa and Davos is about equally good (score 31 vs. 34). During the day Davos is 1 °C warmer than Arosa. Davos gets one more hour of sunshine a day.
| in October | Arosa | Davos |
|---|---|---|
| Holiday score | 31 | 34 |
| Daytime high | 9° | 10° |
| Sunshine | 4 h | 5 h |
| Rainy days | 12 | 13 |
| Best time | Jul – Aug | Jul – Aug |
Through the year
Switzerland in October: the best places
In October, Arosa ranks 29 among the 31 nearest destinations in this country.
- Bellinzona17°69
- 2Locarno17°69
- 3Lugano17°69
- 4Chur15°60
- 5Glarus16°60
- 6Interlaken15°60
- 7Thun14°55
- 8Lauterbrunnen14°54
- 29ArosaThis page9°31
Planning a trip to Arosa
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Arosa in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Arosa has its best school-holiday weather during the Easter holidays (ski score 94) and its weakest during October half-term (score 31).
- 94
Easter holidays
Mar – Apr
Excellent · ski conditionsBest holidays
- 4 °C by day
- 4.8 h of sun a day
- 15 rainy days a month
Good for: Skiing
- 39
May half-term
May – Jun
Poor · ski conditions
- 11 °C by day
- 5.1 h of sun a day
- 19 rainy days a month
Keep in mind: Frequent rain, Snow
- 63
Summer holidays
Jul – Aug
Good
- 17 °C by day
- 6.0 h of sun a day
- 17 rainy days a month
Good for: Sightseeing & walks
Keep in mind: Frequent rain
- 31
October half-term
Oct
Poor
- 9 °C by day
- 4.4 h of sun a day
- 12 rainy days a month
Keep in mind: Snow
- 89
Christmas holidays
Dec – Jan
Excellent · ski conditions
- −3 °C by day
- 3.3 h of sun a day
- 13 rainy days a month
Good for: Skiing
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 1 h 35 min
- Distance
- 900 km
- Time zone
- UTC+2
- Jet lag
- Hardly any (under 3 h)
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Arosa
When is the best time to visit Arosa?
The best time to visit Arosa is from July to August. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in Arosa?
July is the warmest month, with average highs of 17 °C and nights around 8 °C. January is the coolest month at −3 °C.
When does it rain most in Arosa?
Rain is most frequent from May to July; the wettest month is August with 168 mm. The driest month is February with 69 mm.
How many hours of sunshine does Arosa get?
Arosa gets around 1,690 hours of sunshine a year. The sunniest month is July with 6.3 hours a day; in December there are 2.9 hours a day.
What time zone is Arosa in?
Arosa uses the time zone Europe/Zurich: UTC+1 in January and UTC+2 in July.
How long is the flight from London to Arosa?
A nonstop flight from London to Arosa takes about 1 h 35 min, for a straight-line distance of about 900 km.
Which school holidays are best for Arosa?
Arosa has its best school-holiday weather during the Easter holidays (ski score 94) and its weakest during October half-term (score 31). Holiday ratings (0–100): Easter holidays 94 (Ski), May half-term 39 (Ski), Summer holidays 63, October half-term 31, Christmas holidays 89 (Ski).
Near Arosa
Other destinations close by.
Places with a climate like Arosa
Destinations whose weather through the year is closest to Arosa's – good alternatives.