May weather forecast
Saint Gallen, Switzerland

The Abbey Cathedral of Saint Gall in Saint Gallen, Switzerland
The Abbey Cathedral of Saint Gall in Saint Gallen, Switzerland

Weather in May

The last month of the spring, May, is an enjoyable month in Saint Gallen, Switzerland, with an average temperature varying between 6.8°C (44.2°F) and 16.9°C (62.4°F).

Temperature

In Saint Gallen, Switzerland, the average high-temperature in May is practically the same as in April - a comfortable 16.9°C (62.4°F). The average low-temperature, in Saint Gallen, Switzerland, is 6.8°C (44.2°F).

Humidity

In May, the average relative humidity in Saint Gallen is 77%.

Rainfall

In May, the rain falls for 20.7 days. Throughout May, 113mm (4.45") of precipitation is accumulated. In Saint Gallen, during the entire year, the rain falls for 177.8 days and collects up to 1006mm (39.61") of precipitation.

Snowfall

January through May, October through December are months with snowfall in Saint Gallen. May is the last month it regularly snows. During 0.7 snowfall days, Saint Gallen aggregates 25mm (0.98") of snow. Throughout the year, there are 55.7 snowfall days, and 1345mm (52.95") of snow is accumulated.

Daylight

In May, the average length of the day is 15h and 7min.
On the first day of May, sunrise is at 06:05 and sunset at 20:33. On the last day of the month, sunrise is at 05:30 and sunset at 21:10 CEST.

Sunshine

In May, the average sunshine in Saint Gallen is 9.6h.

UV index

The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In May, the average maximum UV index of 4 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in May in Saint Gallen?

The average relative humidity in May is 77%.

How many days does it rain in May in Saint Gallen?

In Saint Gallen, during May, the rain falls for 20.7 days and regularly aggregates up to 113mm (4.45") of precipitation.

What is the last month it snows in Saint Gallen?

May is the last month it regularly snows in Saint Gallen. During 0.7 snowfall days, in May, Saint Gallen aggregates 25mm (0.98") of snow.

What is the average length of the day in May in Saint Gallen?

In Saint Gallen, the average day length in May is 15h and 7min.

When is the sunrise / sunset in May in Saint Gallen?

In May, on the first day of the month, sunrise is at 06:05 and sunset at 20:33. On the last day of the month, sunrise is at 05:30 and sunset at 21:10 CEST.

How many hours of sunshine does Saint Gallen have in May?

The average sunshine duration in May in Saint Gallen, Switzerland, is 9.6h.

What is the UV index reading in May in Saint Gallen?

In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Saint Gallen, Switzerland

Average temperature in May - Saint Gallen, Switzerland
  • Average high temperature in May: 16.9°C

The warmest month (with the highest average high temperature) is July (23.1°C).
The month with the lowest average high temperature is January (2.9°C).

  • Average low temperature in May: 6.8°C

The months with the highest average low temperature are July and August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-2.9°C).

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Average pressure in May
Saint Gallen, Switzerland

Average pressure in May - Saint Gallen, Switzerland
  • Average pressure in May: 1016.1mbar

The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).

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Average wind speed in May
Saint Gallen, Switzerland

Average wind speed in May - Saint Gallen, Switzerland
  • Average wind speed in May: 7.9km/h

The windiest month (with the highest average wind speed) is March (9km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).

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Average humidity in May
Saint Gallen, Switzerland

Average humidity in May - Saint Gallen, Switzerland
  • Average humidity in May: 77%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (75%).

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Average rainfall in May
Saint Gallen, Switzerland

Average rainfall in May - Saint Gallen, Switzerland
  • Average rainfall in May: 113mm

The wettest month (with the highest rainfall) is August (126mm).
The driest month (with the least rainfall) is April (52mm).

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Average rainfall days in May
Saint Gallen, Switzerland

Average rainfall days in May - Saint Gallen, Switzerland
  • Average rainfall days in May: 20.7 days

The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is February (9.5 days).

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Average snowfall in May
Saint Gallen, Switzerland

Average snowfall in May - Saint Gallen, Switzerland
  • Average snowfall in May: 25mm

The month with the highest snowfall is January (353mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in May
Saint Gallen, Switzerland

Average snowfall days in May - Saint Gallen, Switzerland
  • Average snowfall days in May: 0.7 days

The month with the highest number of snowfall days is February (12.6 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in May /
Average sunshine in May
Saint Gallen, Switzerland

Average daylight in May / Average sunshine in May - Saint Gallen, Switzerland
  • Average daylight in May: 15h and 7min

The month with the longest days is June (Average daylight: 15h and 53min).
The month with the shortest days is December (Average daylight: 8h and 32min).

  • Average sunshine in May: 9h and 36min

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).

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Average sunshine days in May
Saint Gallen, Switzerland

Average sunshine days in May - Saint Gallen, Switzerland
  • Average sunshine days in May: 7.3 days

The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is July (6.6 days).

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Average UV index in May
Saint Gallen, Switzerland

Average UV index in May - Saint Gallen, Switzerland
  • Average UV index in May: 4

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in May
Saint Gallen, Switzerland

Average cloud cover in May - Saint Gallen, Switzerland
  • Average cloud cover in May: 41

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in May
Saint Gallen, Switzerland

Average visibility in May - Saint Gallen, Switzerland
  • Average visibility in May: 9km

The months with the highest visibility are April, May, June, July, August, October and November (9km).
The months with the lowest visibility are January, February, March, September and December (8km).

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