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SwitzerlandThe weather in August in Graubünden
It's warm in August in Graubünden with an average temperature of 26°C. Temperatures this month range from a low of 22°C to a high of 27°C. At night, you can expect temperatures between 14°C and 17°C.
Looking for sun? August isn’t a good month to be in Graubünden. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Graubünden, Switzerland. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 36°C in 2015, Graubünden reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 13°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of 1°C to a highest value of 22°C.
Rainfall amount
In August, there is an average of 120 mm of precipitation, spread over 15 days. The wind speed is around 4 Bft, mostly coming from the East.
Daily weather in August for Graubünden
Click on any day in August to get detailed info about the usual weather on that day in Graubünden. Check out the historical temperatures and precipitation over the past 10 years on this day.
August weather comparison
| Graubünden | New York | |
|---|---|---|
| Average temperature | 26°C | 30°C |
| Max. temperature | 27°C | 31°C |
| Min. temperature | 14°C | -5°C |
| Total precipitation | 120 mm | 79 mm |
| Rainy days | 15 days | 13 days |
Start of August
The month of August starts in Graubünden with warm temps, averaging around 26°C during the day and nights around 16°C.
Mid August
By mid-August, daytime temps stay steady at around 26°C, with nights around 16°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of August
By the end of August, the average daytime temperature in Graubünden is around 25°C, while nighttime temps are about 15°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Graubünden for all months and discover the best travel time
Curious about the weather in other parts of Switzerland? Check out the climate and weather for spots like Zurich, Geneva, Valais, or explore other destinations in Switzerland.
Temperature charts
These charts show the average temperatures in August in Graubünden, Switzerland. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in August in Graubünden
Temperature in August in Graubünden over the years
Precipitation charts
These charts show the average amount of precipitation in August in Graubünden, Switzerland. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in August in Graubünden
Total precipitation in August in Graubünden over the years
Daily UV index in August in Graubünden
This chart shows the average daily UV index in August in Graubünden, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in August in Graubünden
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Average weather in Graubünden by month
Click on a month below to see detailed weather info for Graubünden. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.