Grisons (St. Moritz)
August
Weather in Grisons for August 2026
Your guide to Grisons weather in August - trends and predictions
Snowfall in Grisons during August is quite rare, with fewer than 2 snowy days on average.
According to Grisons snow forecast for August 2026, no snow is expected at the beginning of the month.The forecast for the first days of August 2026 in Grisons predicts a temperature of 16.6 °C, which is cooler than the historical average.
In general, the average temperature in Grisons at the beginning of August is 18.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14 °C by the end of August.
Grisons experiences heavy rainfall in August, with over 20 rainy days and an average total precipitation 261.4 mm.
Snow Forecast ❄️
Temperatures
Rain 🌧️
6
Dry days
24
Rainy days
1
Snow days
17°/4°
Temperatures
12 km/h
Avg max wind
74 %
Avg humidity
Grisons Weather August
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What’s the Weather Like in Grisons This August?
Discover the average temperatures and weather trends across Grisons’s cities this August.
Temperatures trend during August in Grisons
See the weather trend as well as the moving average line
August weather in Grisons day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Aug. |  Sunny | 21° /7° | 6.8 mm | 0 cm | |
| 2 Aug. |  Patchy rain possible | 18° /6° | 2 mm | 0 cm | |
| 3 Aug. | Patchy rain possible | 19° /7° | 2.2 mm | 0 cm | |
| 4 Aug. |  Fog | 15° /1° | 0.1 mm | 0 cm | |
| 5 Aug. | Patchy rain possible | 19° /2° | 0.2 mm | 0 cm | |
| 6 Aug. |  Patchy light rain with thunder | 18° /4° | 9.2 mm | 0 cm | |
| 7 Aug. | Patchy light rain with thunder | 18° /3° | 8.4 mm | 0 cm | |
| 8 Aug. | Patchy rain possible | 20° /4° | 1.1 mm | 0 cm | |
| 9 Aug. | Patchy rain possible | 21° /5° | 3.5 mm | 0 cm | |
| 10 Aug. | Patchy rain possible | 22° /5° | 0.2 mm | 0 cm | |
| 11 Aug. | Patchy rain possible | 22° /7° | 2.2 mm | 0 cm | |
| 12 Aug. | Patchy light rain with thunder | 21° /7° | 2.8 mm | 0 cm | |
| 13 Aug. | Patchy light rain with thunder | 20° /6° | 4 mm | 0 cm | |
| 14 Aug. | Patchy light rain with thunder | 19° /5° | 4.2 mm | 0 cm | |
| 15 Aug. | Patchy rain possible | 20° /4° | 3.6 mm | 0 cm | |
| 16 Aug. | Patchy rain possible | 19° /6° | 5 mm | 0 cm | |
| 17 Aug. | Patchy rain possible | 18° /4° | 2.6 mm | 0 cm | |
| 18 Aug. |  Moderate or heavy rain shower | 15° /2° | 12.9 mm | 0 cm | |
| 19 Aug. | Patchy rain possible | 16° /3° | 3.4 mm | 0 cm | |
| 20 Aug. | Patchy light rain with thunder | 17° /4° | 9.4 mm | 0 cm | |
| 21 Aug. | Sunny | 17° /5° | 7.9 mm | 0 cm | |
| 22 Aug. | Patchy rain possible | 17° /4° | 1.5 mm | 0 cm | |
| 23 Aug. | Patchy rain possible | 18° /5° | 0.2 mm | 0 cm | |
| 24 Aug. | Patchy rain possible | 19° /5° | 1.7 mm | 0 cm | |
| 25 Aug. | Patchy light rain with thunder | 18° /4° | 4.2 mm | 0 cm | |
| 26 Aug. | Patchy light rain with thunder | 17° /3° | 7.7 mm | 0 cm | |
| 27 Aug. | Patchy light rain with thunder | 15° /2° | 74.7 mm | 0 cm | |
| 28 Aug. |  Moderate or heavy sleet | 11° /3° | 58.1 mm | 2.7 cm | |
| 29 Aug. | Patchy light rain with thunder | 11° /0° | 9.5 mm | 0.1 cm | |
| 30 Aug. |  Light snow showers | 12° /0° | 1.3 mm | 0.1 cm | |
| 31 Aug. | Patchy rain possible | 14° /0° | 0.7 mm | 0 cm | |
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Important Notice
Our weather forecast for Grisons in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Grisons forecast closer to your planned date for the most up-to-date weather information.
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Grisons in August - FAQ
What are the expected maximum and minimum temperatures in Grisons during August?
During August, expect a variety of temperatures with highs around 17° and lows near 4°, suitable for diverse activities and preferences.
How much rainfall should be expected in Grisons during August?
Significant rainfall exceeding 261.4 mm is expected in Grisons during August, occurring over more than 24 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Grisons in August 2026?
Grisons typically sees 2.86333 cm of snowfall during August.
What are the typical wind conditions in Grisons during August?
The average wind speed in Grisons during August is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
Grisons snow forecast August 2026
Track daily snowfall levels and discover Grisons’s snowy potential this August ❄️
On average, Grisons sees 1 snowy days during August, with approximately 2.9 cm of total snowfall.
August rainfall patterns in Grisons
Explore the daily rainfall trends and prepare for Grisonss August weather 💧
Typically, Grisons has 24 rainy days in August with a total of 261.4 mm of rainfall.
UV exposure in Grisons during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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