Grächen Weather in May
May in Grächen averages 10°C (50°F) during the day and 0°C (32°F) at night. It is the wettest month of the year, with 162 mm (6.4 in) of rainfall on average, so waterproof gear is a must.
Rainfall in Grächen in May
This month experiences the most intense rain of the year, with heavy showers. Be prepared with a poncho to stay dry. Historically, approximately 20 days this month are expected to have rain, averaging 162 mm (6.4 in). This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Grächen in May
May in Grächen brings low temperatures, with highs of 10°C (50°F) and nights around 0°C (32°F). It stays cool throughout the day, so warm layers are a good idea from morning to evening. Nights fall to 0°C (32°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Grächen in May
The area experiences a moderate amount of sunshine, with approximately 160 hours of sunlight expected. This means a decent mix of sun and overcast.If you prefer dry days with pleasant temperatures, May may not be the ideal month to visit Grächen. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Switzerland, check out our Grächen's climate page.
Grächen Temperature in May
Min Temperature
0°C (32°F)
Max Temperature
10°C (50°F)
Chance of Rain
67%
Precipitation
162 mm (6.4 in)
Rainy days
20 days
Humidity
67% *
Sunshine
160 hours *
Percentage Sunshine
56% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Grächen typically rise from around 14°C (57°F) at the start of May to approximately 18°C (64°F) by the end. Nights are cold, with lows typically ranging from 3°C (37°F) to 7°C (45°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Grächen in May
Browse day-by-day weather records for Grächen spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Grächen historical weather extremes in May
Our historical data for Grächen spans 1976 to 2025, revealing these weather extremes.
- The warmest day in May was on May 13, 1998, with a maximum of 30°C (86°F).
- The coldest May day was on May 1, 2016, with a maximum of 1°C (34°F).
- Nighttime temperatures dropped to -14°C (7°F) on May 7, 1997, marking the coldest May night on record.
- The wettest day in May Grächen was on May 28, 2007 with 51 mm (2 in) of precipitation.
Best Places in Switzerland in May
Find out more about the weather in Switzerland and which places have the best travel conditions in this month. See all of Switzerland in May →
perfect weather
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What to Wear in Grächen in May
Dress warmly and in layers for your trip to Grächen in May. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. It's going to pour! Pack a good poncho and prepare for very wet conditions. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Grächen in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Switzerland, check out our Grächen's climate page.
Temperature Rainfall Sunshine Humidity
See the full Grächen climate overview or explore weather in Switzerland.
