Temperatures in August
It's cool to moderate in August in St. Moritz with an average temperature of 18°C. Temperatures this month range from a low of 15°C to a high of 19°C. At night, you can expect temperatures between 5°C and 8°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for St. Moritz 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 St. Moritz with mild temperatures, averaging around 19°C during the day and nights close to 8°C. You can expect regular precipitation, but there’s also a chance for some sunny days in the first days of the month.
Mid-August
By mid-August, the average daytime temperature drops to around 18°C, with nights close to 7°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of August
By the end of August, the average daytime temperature in St. Moritz will be around 18°C, with nights close to 6°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 110 mm of precipitation, spread over 12 days. Of the total precipitation, about 0,1 cm falls as snow in August. The wind speed is around 4 Bft, mostly coming from the South.
The average precipitation chance is 40% 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 St. Moritz. 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.
St. Moritz in August |
London | ||
|---|---|---|---|
 Average Temperature |
18°C | 22°C | |
 High Temp |
19°C | 24°C | |
| Low Temp |
15°C | 19°C | |
 Total Precipitation |
110 mm | 60 mm | |
| Rainy Days |
12 days | 10 days | |
 Total Snowfall |
0,1 cm | 0 cm | |
| Snowy Days |
1 day | 0 days | |
July
UV index
The UV index is a maximum of 8 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 St. Moritz?
After some sun? Then August isn’t the best time to be in St. Moritz. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for St. Moritz in August
With 27°C, St. Moritz hit the highest temperature in the last 10 years in August 2023. The lowest daytime temperature in this month was 7°C in 2020. The extreme night temperatures ranged from a low of -2°C to a high of 15°C.
Check out the climate of St. Moritz 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 St. Moritz
This chart shows the average daily temperatures, both day and night, for each day in August in St. Moritz, 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 St. Moritz
The chart below shows the average daily precipitation in August for St. Moritz, 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 St. Moritz.
Daily Snowfall in August in St. Moritz
This chart shows the average daily snowfall in August in St. Moritz, measured in centimetres. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in August.
Daily UV Index in August in St. Moritz
This chart shows the average daily UV index in August in St. Moritz, 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 St. Moritz Over the Years
This chart shows the average temperature in August in St. Moritz, measured in degrees Celsius, over the past years.
Total Precipitation in August in St. Moritz Over the Years
This chart shows the average precipitation in August in St. Moritz, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Snowfall in August in St. Moritz per year
This chart shows the average snowfall in August in St. Moritz, measured in centimetres, over the past years.
Daily climate in August for St. Moritz
Click on a specific day in August for detailed info on the typical weather on that day in St. Moritz. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in St. Moritz
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Average Weather in St. Moritz by Month
Click on a month below to see detailed weather info for St. Moritz. 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 St. Moritz for all months at once
