Grisons (St. Moritz)
May
Weather in Grisons for May 2025
Your guide to Grisons weather in May - trends and predictions
Grisons typically experiences moderate snowfall in May, with an average of 8 snowy days.
In general, the average temperature in Grisons at the beginning of May is 4.1 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 7.7 °C by the end of May.
Is May a good time to visit Grisons? check out the best time to travel to Grisons page.
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Snow Forecast ❄️
Temperatures
More
7
Dry days
16
Rainy days
8
Snow days
6°/-3°
Temperatures
11 km/h
Avg max wind
90 %
Avg humidity
Grisons in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  6° | 2  3° | 3  3° | 4  3° | |||
| 5  6° | 6 4° | 7  4° | 8  3° | 9  7° | 10 11° | 11 13° |
| 12  12° | 13 4° | 14 8° | 15  4° | 16 5° | 17 3° | 18 6° |
| 19 8° | 20 11° | 21 5° | 22 5° | 23 3° | 24 7° | 25 6° |
| 26 11° | 27 10° | 28 7° | 29 11° | 30 7° | 31 2° |
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Temperatures trend during May in Grisons
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 May | Moderate or heavy rain with thunder | 6° /-2° | 4.6 mm | 0 cm | |
| 2 May | Moderate or heavy snow with thunder | 3° /-2° | 15.5 mm | 8.5 cm | |
| 3 May | Moderate or heavy snow showers | 3° /-4° | 4.8 mm | 3.9 cm | |
| 4 May | Light snow showers | 3° /-6° | 3.6 mm | 2.5 cm | |
| 5 May | Thundery outbreaks possible | 6° /-2° | 0.2 mm | 0 cm | |
| 6 May | Moderate or heavy rain with thunder | 4° /-2° | 4.1 mm | 0 cm | |
| 7 May | Light rain shower | 4° /-4° | 14.3 mm | 4.3 cm | |
| 8 May | Heavy snow | 3° /-3° | 3.6 mm | 2.9 cm | |
| 9 May | Fog | 7° /-6° | 0.1 mm | 0 cm | |
| 10 May | Patchy rain possible | 11° /-5° | 0.1 mm | 0 cm | |
| 11 May | Patchy rain possible | 13° /-2° | 0.4 mm | 0 cm | |
| 12 May | Patchy light rain with thunder | 12° /-1° | 15.7 mm | 0 cm | |
| 13 May | Light rain shower | 4° /-1° | 17.3 mm | 0 cm | |
| 14 May | Light rain shower | 8° /-1° | 2 mm | 0 cm | |
| 15 May | Light sleet | 4° /0° | 16.2 mm | 0 cm | |
| 16 May | Moderate or heavy rain with thunder | 5° /0° | 10.8 mm | 0 cm | |
| 17 May | Moderate or heavy snow with thunder | 3° /-5° | 9.3 mm | 6.9 cm | |
| 18 May | Patchy light rain with thunder | 6° /-7° | 1.4 mm | 0 cm | |
| 19 May | Patchy light rain with thunder | 8° /-5° | 1 mm | 0 cm | |
| 20 May | Patchy rain possible | 11° /-3° | 0.4 mm | 0 cm | |
| 21 May | Heavy snow | 5° /-3° | 32.9 mm | 6.8 cm | |
| 22 May | Fog | 5° /-4° | 0.6 mm | 0.1 cm | |
| 23 May | Moderate or heavy rain with thunder | 3° /-2° | 8.8 mm | 0 cm | |
| 24 May | Moderate or heavy rain with thunder | 7° /-4° | 10.1 mm | 0 cm | |
| 25 May | Patchy light rain with thunder | 6° /-2° | 6 mm | 0 cm | |
| 26 May | Patchy light rain with thunder | 11° /-2° | 1.9 mm | 0 cm | |
| 27 May | Patchy light rain with thunder | 10° /0° | 2.7 mm | 0 cm | |
| 28 May | Fog | 7° /-2° | 3.6 mm | 0 cm | |
| 29 May | Thundery outbreaks possible | 11° /-3° | 0.4 mm | 0 cm | |
| 30 May | Moderate or heavy rain with thunder | 7° /-1° | 13.8 mm | 0 cm | |
| 31 May | Light snow showers | 2° /-5° | 45.4 mm | 33.1 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.
Grisons in May - FAQ
What are the expected maximum and minimum temperatures in Grisons during May?
Prepare for cooler days with highs just around 6° and colder nights, dipping below -3°.
How much rainfall should be expected in Grisons during May?
Significant rainfall exceeding 251.6 mm is expected in Grisons during May, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Grisons in May 2025?
Grisons experiences an average snowfall of 69.03 cm during May, occurring over 8 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.
What to pack to Grisons in May?
As you prepare for your trip to Grisons in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Grisons, during May, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Thermal Wear: Base layers for cold destinations
- All-Weather Jacket: Waterproof and breathable
- Footwear
- Waterproof Shoes
- Insulated Boots: For snowy and extremely cold temperatures
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
Grisons snow forecast May 2025
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May rainfall patterns in Grisons
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