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Switzerland
The weather in May in St. Gallen
Looking for sun and warm weather? May isn’t a good month to be in St. Gallen. The temperatures are too low for a warm stay this month.
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for St. Gallen, Switzerland. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Daily weather in May for St. Gallen
Click on any day in May to get detailed info about the usual weather on that day in St. Gallen. Check out the historical temperatures and precipitation over the past 10 years on this day.
Average temperatures
It's cool to moderate in May in St. 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.
Temperature records
With 29°C in 2015, St. Gallen reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 1°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of -2°C to a highest value of 18°C.
Precipitation and snowfall
In May, there is an average of 167 mm of precipitation, spread over 19 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.
May weather comparison
| St. Gallen | New York | |
|---|---|---|
| Average temperature | 16°C | 22°C |
| Max. temperature | 19°C | 28°C |
| Min. temperature | 5°C | -5°C |
| Total precipitation | 167 mm | 105 mm |
| Rainy days | 19 days | 14 days |
| Total snowfall | 13 cm | 0 cm |
| Snowy days | 6 days | 0 days |
Start of May
The month of May starts in St. Gallen with cool temps, averaging around 15°C during the day and nights around 7°C.
Mid May
By mid-May, daytime temps stay steady at around 15°C, with nights around 8°C. There’s a high chance of precipitation during this time.
End of May
By the end of May, the average daytime temperature in St. Gallen is around 18°C, while nighttime temps are about 10°C. A shower might pop up, but overall, the weather will be dry and sunny.
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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.
Check out the climate of St. Gallen for all months and discover the best travel time
Curious about the weather in other parts of Switzerland? Check out the climate and weather for spots like Zurich, Geneva, Valais, or explore other destinations in Switzerland.
Temperature charts
These charts show the average temperatures in May in St. Gallen, Switzerland. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in St. Gallen
Temperature in May in St. Gallen over the years
Precipitation charts
These charts show the average amount of precipitation in May in St. Gallen, Switzerland. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in St. Gallen
Total precipitation in May in St. Gallen over the years
Daily Snowfall in May in St. Gallen
Snowfall in May in St. Gallen per year
Daily UV index in May in St. Gallen
This chart shows the average daily UV index in May in St. 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.
Weather experiences in May in St. Gallen
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Average weather in St. Gallen by month
Click on a month below to see detailed weather info for St. Gallen. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.