Siviez Weather in May
With daytime temperatures of 11°C (52°F) and nighttime lows of 1°C (34°F), May in Siviez brings low temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 153 mm (6 in) falls on average.
Rainfall in Siviez in May
You can expect rain on around 20 days based on historical patterns, with 153 mm (6 in) average for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Siviez in May
May in Siviez brings typical temperatures with highs around 11°C (52°F) and lows of 1°C (34°F). Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. With lows around 1°C (34°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Siviez in May
Enjoy a sunny month with about 230 hours of sunshine, making it one of the brighter months of the year despite the cool conditions.
Wind Speed in Siviez in May
Average wind conditions reach 2 m/s (4 knots) in May. This creates comfortable weather with light winds that gently move vegetation. Keep in mind this is an average. Daily conditions range from near-calm to more noticeable wind.May in Siviez can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
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 Siviez's climate page.
Siviez Temperature in May
Min Temperature
1°C (34°F)
Max Temperature
11°C (52°F)
Chance of Rain
65%
Precipitation
153 mm (6 in)
Rainy days
20 days
Humidity
62% *
Windspeed
2 m/s (4 knots) *
Sunshine
230 hours *
Percentage Sunshine
56% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Siviez typically rise from around 16°C (61°F) at the start of May to approximately 20°C (68°F) by the end. Nights are cold, with lows typically ranging from 5°C (41°F) to 9°C (48°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 Siviez in May
Browse day-by-day weather records for Siviez spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Siviez historical weather extremes in May
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Siviez.
- On May 30, 2001, temperatures climbed to 30°C (86°F), marking the warmest May day on record.
- The lowest daytime temperature in May was 2°C (36°F), recorded on May 4, 1979.
- Siviez registered its coldest May night on May 7, 1997, with temperatures dropping to -14°C (7°F).
- The wettest day in May Siviez was on May 28, 1979 with 46 mm (1.8 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
pleasant
tolerable
unpleasant
poor
What to Wear in Siviez in May
The weather can swing between comfortable and chilly in May, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. It's going to pour! Pack a good poncho and prepare for very wet conditions. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Siviez 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 Siviez's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Siviez climate overview or explore weather in Switzerland.
