Temperatures in May
It's cool to moderate in May in Sankt Gallen with an average temperature of 16°C. Temperatures this month range from a low of 11°C to a high of 19°C. At night, you can expect temperatures between 5°C and 10°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Sankt Gallen in May. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of May
The month of May starts in Sankt Gallen with cool temperatures, averaging around 15°C during the day and nights close to 7°C. Plenty of days with a chance of precipitation.
Mid-May
By mid-May, the average daytime temperature stays the same at 15°C, with nights close to 8°C. The chance of precipitation is high during this period.
End of May
By the end of May, the average daytime temperature in Sankt Gallen will be around 18°C, with nights close to 10°C. A shower might show up, but overall the weather will be dry and sunny.
Discover cheap trips to Sankt Gallen 
Precipitation in May
In May, there is an average of 167 mm of precipitation, spread over 16 days. Of the total precipitation, about 13 cm falls as snow in May. The wind speed is around 3 Bft, mostly coming from the South.
Across the whole month, the average precipitation chance is 53% per day. Though it seems average, the weather’s variable. Some days have higher, others lower precipitation chances.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in May for Sankt Gallen. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Sankt Gallen in May |
London | ||
|---|---|---|---|
 Average Temperature |
16°C | 18°C | |
 High Temp |
19°C | 21°C | |
| Low Temp |
11°C | 15°C | |
 Total Precipitation |
167 mm | 46 mm | |
| Rainy Days |
16 days | 8 days | |
 Total Snowfall |
13 cm | 0 cm | |
| Snowy Days |
6 days | 0 days | |
April
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is May a good time to visit Sankt Gallen?
Looking for sun and warm weather? Then May isn’t the best time to be in Sankt Gallen. The temperature is too low this month for a warm stay.
Temperature records for Sankt Gallen in May
With 29°C, Sankt Gallen hit the highest temperature in the last 10 years in May 2015. The lowest daytime temperature in this month was 1°C in 2019. The extreme night temperatures ranged from a low of -2°C to a high of 18°C.
Check out the climate of Sankt Gallen for all months and discover the best travel time
Curious about the climate in other parts of Switzerland? Check out the weather and climate in places like Zurich, Geneva, Valais, or have a look at other destinations in Switzerland.
Plan your next holiday
Don’t miss the best holiday deals for Sankt Gallen and see what our partners have for you.
Daily Temperature in May in Sankt Gallen
This chart shows the average daily temperatures, both day and night, for each day in May in Sankt Gallen, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in May in Sankt Gallen
The chart below shows the average daily precipitation in May for Sankt Gallen, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for May, you can expect around 16 days of rain in Sankt Gallen.
Daily Snowfall in May in Sankt Gallen
This chart shows the average daily snowfall in May in Sankt Gallen, measured in centimetres. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in May.
Daily UV Index in May in Sankt Gallen
This chart shows the average daily UV index in May in Sankt Gallen, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in May in Sankt Gallen Over the Years
This chart shows the average temperature in May in Sankt Gallen, measured in degrees Celsius, over the past years.
Total Precipitation in May in Sankt Gallen Over the Years
This chart shows the average precipitation in May in Sankt Gallen, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Snowfall in May in Sankt Gallen per year
This chart shows the average snowfall in May in Sankt Gallen, measured in centimetres, over the past years.
Daily climate in May for Sankt Gallen
Click on a specific day in May for detailed info on the typical weather on that day in Sankt Gallen. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Sankt Gallen
Have you been to Sankt Gallen in May?
Share your weather experience in May in Sankt Gallen.
Average Weather in Sankt Gallen by Month
Click on a month below to see detailed weather info for Sankt Gallen. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Sankt Gallen for all months at once
