May weather forecastSankt Gallen, Austria
May
Weather in May
May, the last month of the spring in Sankt Gallen, is a refreshing month, with temperature in the range of an average high of 15.8°C (60.4°F) and an average low of 4.8°C (40.6°F).Temperature
In May, the average high-temperature marginally rises from a cool 12.7°C (54.9°F) in April to a mild 15.8°C (60.4°F). Sankt Gallen experiences a mean temperature of 4.8°C (40.6°F) during May nights.Humidity
The average relative humidity in May is 81%.Rainfall
The month with the most rainfall is May, when the rain falls for 22.8 days and typically aggregates up to 111mm (4.37") of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Sankt Gallen aggregates 12mm (0.47") of snow. Throughout the year, there are 49.6 snowfall days, and 1079mm (42.48") of snow is accumulated.Daylight
The average length of the day in May is 15h and 9min.On the first day of May, sunrise is at 05:43 and sunset at 20:14. On the last day of the month, sunrise is at 05:07 and sunset at 20:50 CEST.
Sunshine
The average sunshine in May is 8.8h.UV index
In Sankt Gallen, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 4 during May translates into these guidelines:
Undertake protective steps - Recommendations to avoid sunburn are issued. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Sankt Gallen, Austria
- Average high temperature in May: 15.8°C
The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is January (0.2°C).
- Average low temperature in May: 4.8°C
The month with the highest average low temperature is August (10.1°C).
The coldest months (with the lowest average low temperature) are January and February (-6.2°C).
Average pressure in May
Sankt Gallen, Austria
- Average pressure in May: 1015.5mbar
The month with the highest atmospheric pressure is December (1020.5mbar).
The month with the lowest atmospheric pressure is May (1015.5mbar).
Average wind speed in May
Sankt Gallen, Austria
- Average wind speed in May: 6.9km/h
The windiest month (with the highest average wind speed) is March (7.5km/h).
The calmest month (with the lowest average wind speed) is August (5.4km/h).
Average humidity in May
Sankt Gallen, Austria
- Average humidity in May: 81%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is August (77%).
Average rainfall in May
Sankt Gallen, Austria
- Average rainfall in May: 111mm
The wettest month (with the highest rainfall) is May (111mm).
The driest month (with the least rainfall) is April (45mm).
Average rainfall days in May
Sankt Gallen, Austria
- Average rainfall days in May: 22.8 days
The month with the highest number of rainy days is May (22.8 days).
The month with the least rainy days is February (9.1 days).
Average snowfall in May
Sankt Gallen, Austria
- Average snowfall in May: 12mm
The month with the highest snowfall is January (385mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Sankt Gallen, Austria
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Sankt Gallen, Austria
- Average daylight in May: 15h and 12min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in May: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in May
Sankt Gallen, Austria
- Average sunshine days in May: 6.2 days
The month with the most sunshine days is October (16.4 days).
The month with the least sunshine days is May (6.2 days).
Average UV index in May
Sankt Gallen, Austria
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Sankt Gallen, Austria
- Average cloud cover in May: 49
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in May
Sankt Gallen, Austria
- Average visibility in May: 8km
The months with the highest visibility are April, May, June, July and August (8km).
The months with the lowest visibility are January and February (6km).





