Temperatures in August
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.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Graubünden in August. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of August
The month of August starts in Graubünden with warm temperatures, averaging around 26°C during the day and nights close to 16°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-August
By mid-August, the average daytime temperature stays the same at 26°C, with nights close to 16°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
Temperatures vary between day and night, so it’s smart to wear layers.
End of August
By the end of August, the average daytime temperature in Graubünden will be around 25°C, with nights close to 15°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
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Precipitation in August
In August, there is an average of 120 mm of precipitation, spread over 12 days. The wind speed is around 4 Bft, mostly coming from the East.
The average precipitation chance is 39% per day this month. The weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in August for Graubünden. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Graubünden in August |
UK | ||
|---|---|---|---|
 Average Temperature |
26°C | 22°C | |
 High Temp |
27°C | 24°C | |
| Low Temp |
22°C | 19°C | |
 Total Precipitation |
120 mm | 60 mm | |
| Rainy Days |
12 days | 10 days | |
July
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.
Is August a good time to visit Graubünden?
After some sun? Then August isn’t the best time to be in Graubünden. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Graubünden in August
With 36°C, Graubünden hit the highest temperature in the last 10 years in August 2015. The lowest daytime temperature in this month was 13°C in 2023. The extreme night temperatures ranged from a low of 1°C to a high of 22°C.
Check out the climate of Graubünden for all months and discover the best travel time
Curious about the climate in other parts of Switzerland? Check out the weather and climate in places like Zurich, Geneva, Valais, or have a look at other destinations in Switzerland.
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Daily Temperature in August in Graubünden
This chart shows the average daily temperatures, both day and night, for each day in August in Graubünden, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in August in Graubünden
The chart below shows the average daily precipitation in August for Graubünden, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for August, you can expect around 12 days of rain in Graubünden.
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.
Temperature in August in Graubünden Over the Years
This chart shows the average temperature in August in Graubünden, measured in degrees Celsius, over the past years.
Total Precipitation in August in Graubünden Over the Years
This chart shows the average precipitation in August in Graubünden, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in August for Graubünden
Click on a specific day in August for detailed info on the typical weather on that day in Graubünden. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Graubünden
Have you been to Graubünden in August?
Share your weather experience in August in Graubünden.
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.
Or check out the climate of Graubünden for all months at once
