Saint Gallen
Switzerland
Long-term weather forecast
Long-term weather forecast
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May weather forecast and Climate
Saint Gallen, Switzerland

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The Abbey Cathedral of Saint Gall in Saint Gallen, Switzerland, looking beautiful in the aerial panorama of the beautiful city, and a clear view of the nearby mountains
The Abbey Cathedral of Saint Gall in Saint Gallen, Switzerland, looking beautiful in the aerial panorama of the beautiful city, and a clear view of the nearby mountains
  • The average high temperature in May: 16.3°C

The warmest month (with the highest average high temperature) is July (21.6°C).
The month with the lowest average high temperature is January (2.5°C).

  • The average low temperature in May: 7.8°C

The month with the highest average low temperature is July (13.1°C).
The coldest month (with the lowest average low temperature) is January (-3°C).

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  • The average humidity in May: 74.5%

The month with the highest relative humidity is December (85.5%).
The month with the lowest relative humidity is July (74.4%).

  • The average rainfall in May: 143mm

The wettest month (with the highest rainfall) is July (172mm).
The driest month (with the lowest rainfall) is February (57mm).

  • The average rainfall days in May: 13.7 days

Months with the highest number of rainy days are June and July (13.8 days).
The month with the lowest number of rainy days is February (9.1 days).

  • The average snowfall in May: 7mm

The month with the highest snowfall is February (458mm).
Months with the lowest snowfall are June, July and August (0mm).

  • The average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (7 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

  • The average daylight in May: 15h

The month with the longest days is June (Average daylight: 16h).
Months with shortest days are January, November and December (Average daylight: 9h).

  • The average sunshine in May: 5.7h

The month with most sunshine is July (Average sunshine: 7.1h).
The month with least sunshine is December (Average sunshine: 1.4h).

  • The average UV index in May: 7

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).

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