Graz
Austria
Long-term weather forecast
Long-term weather forecast
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September weather forecast and Climate
Graz, Austria

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  • The average high temperature in September: 20°C

The warmest month (with the highest average high temperature) is July (24°C).
The month with the lowest average high temperature is January (0°C).

  • The average low temperature in September: 9°C

Months with the highest average low temperature are July and August (12°C).
The coldest month (with the lowest average low temperature) is January (-7°C).

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  • The average rainfall in September: 89mm

The wettest month (with the highest rainfall) is July (131mm).
The driest month (with the lowest rainfall) is January (40mm).

  • The average rainfall days in September: 11 days

Months with the highest number of rainy days are May and June (15 days).
The month with the lowest number of rainy days is October (9 days).

  • The average daylight in September: 13h

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 September: 6h

The month with most sunshine is July (Average sunshine: 8h).
Months with least sunshine are January and December (Average sunshine: 2).

  • The average UV index in September: 5

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

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