Grisons (St. Moritz)
May
Weather in Grisons for May 2026
Your guide to Grisons weather in May - trends and predictions
With an average of 4 snowy days, Grisons usually enjoys a light touch of snow in May.
In general, the average temperature in Grisons at the beginning of May is 6.4 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 9.9 °C by the end of May.
Snow Forecast ❄️
Temperatures
9
Dry days
18
Rainy days
4
Snow days
9°/-4°
Temperatures
11 km/h
Avg max wind
87 %
Avg humidity
Grisons Weather May
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What’s the Weather Like in Grisons This May?
Discover the average temperatures and weather trends across Grisons’s cities this May.
Temperatures trend during May in Grisons
See the weather trend as well as the moving average line
May weather in Grisons day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 May |  Moderate or heavy rain with thunder | 10° /-2° | 4.3 mm | 0 cm | |
| 2 May |  Moderate or heavy snow with thunder | 9° /-1° | 8 mm | 4.3 cm | |
| 3 May |  Moderate or heavy snow showers | 8° /-2° | 3 mm | 1.9 cm | |
| 4 May |  Light snow showers | 7° /-4° | 20.7 mm | 1.3 cm | |
| 5 May |  Thundery outbreaks possible | 5° /0° | 21.5 mm | 0.2 cm | |
| 6 May | Moderate or heavy rain with thunder | 3° /-1° | 10 mm | 1.2 cm | |
| 7 May |  Light rain shower | 3° /-5° | 15.5 mm | 5.5 cm | |
| 8 May |  Heavy snow | 3° /-4° | 3.6 mm | 2 cm | |
| 9 May |  Fog | 5° /-6° | 1.3 mm | 0.2 cm | |
| 10 May | Patchy rain possible | 8° /-7° | 0.3 mm | 0 cm | |
| 11 May | Patchy rain possible | 11° /-4° | 0.7 mm | 0 cm | |
| 12 May |  Patchy light rain with thunder | 10° /-3° | 20.6 mm | 0 cm | |
| 13 May | Light rain shower | 4° /-2° | 16.3 mm | 0.2 cm | |
| 14 May | Light rain shower | 7° /-2° | 1.3 mm | 0 cm | |
| 15 May |  Light sleet | 7° /-2° | 9.6 mm | 0.1 cm | |
| 16 May | Moderate or heavy rain with thunder | 6° /-3° | 5.5 mm | 0 cm | |
| 17 May | Moderate or heavy snow with thunder | 5° /-6° | 4.9 mm | 3.5 cm | |
| 18 May | Patchy light rain with thunder | 8° /-7° | 0.7 mm | 0 cm | |
| 19 May | Patchy light rain with thunder | 10° /-4° | 0.6 mm | 0 cm | |
| 20 May | Patchy rain possible | 10° /-2° | 6.9 mm | 0 cm | |
| 21 May | Heavy snow | 7° /-2° | 18.8 mm | 3.4 cm | |
| 22 May | Fog | 4° /-5° | 21 mm | 7.8 cm | |
| 23 May | Moderate or heavy rain with thunder | 2° /-5° | 5.1 mm | 0.1 cm | |
| 24 May | Moderate or heavy rain with thunder | 5° /-7° | 5.1 mm | 0 cm | |
| 25 May | Patchy light rain with thunder | 7° /-4° | 3.1 mm | 0 cm | |
| 26 May | Patchy light rain with thunder | 10° /-1° | 1.2 mm | 0 cm | |
| 27 May | Patchy light rain with thunder | 9° /-1° | 2.2 mm | 0 cm | |
| 28 May | Fog | 10° /-3° | 4 mm | 0 cm | |
| 29 May | Thundery outbreaks possible | 11° /-3° | 0.3 mm | 0 cm | |
| 30 May | Moderate or heavy rain with thunder | 12° /-1° | 6.9 mm | 0 cm | |
| 31 May | Light snow showers | 10° /-2° | 23.9 mm | 16.5 cm | |
| Next | |||||
Important Notice
Our weather forecast for Grisons in May 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.
Change Month
Grisons in May - FAQ
What are the expected maximum and minimum temperatures in Grisons during May?
Prepare for cooler days with highs just around 9° and colder nights, dipping below -4°.
How much rainfall should be expected in Grisons during May?
Significant rainfall exceeding 493.7 mm is expected in Grisons during May, occurring over more than 18 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Grisons in May 2026?
Grisons experiences an average snowfall of 96.6 cm during May, occurring over 4 days.
What are the typical wind conditions in Grisons during May?
The average wind speed in Grisons during May is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
Grisons snow forecast May 2026
Track daily snowfall levels and discover Grisons’s snowy potential this May ❄️
May rainfall patterns in Grisons
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