Sacramento
California, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and Climate
Sacramento, CA

The State Capitol Building in Sacramento, California under the perfect blue sky
The State Capitol Building in Sacramento, California under the perfect blue sky
  • The average high temperature in September: 30.7°C

The warmest month (with the highest average high temperature) is July (33.4°C).
The month with the lowest average high temperature is January (12.1°C).

  • The average low temperature in September: 13.2°C

The month with the highest average low temperature is July (14.7°C).
The coldest month (with the lowest average low temperature) is December (3.6°C).

  • The average humidity in September: 57%

The month with the highest relative humidity is January (83.3%).
The month with the lowest relative humidity is July (53.2%).

  • The average rainfall in September: 7.4mm

The wettest month (with the highest rainfall) is January (92.5mm).
The driest month (with the lowest rainfall) is July (0mm).

  • The average rainfall days in September: 1.3 days

The month with the highest number of rainy days is January (10.3 days).
The month with the lowest number of rainy days is July (0 days).

  • The average daylight in September: 12h

Months with the longest days are June and July (Average daylight: 15h).
Months with shortest days are January, November and December (Average daylight: 10h).

  • The average sunshine in September: 11.6h

The month with most sunshine is July (Average sunshine: 14.2h).
The month with least sunshine is December (Average sunshine: 4.6h).

  • The average UV index in September: 7

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January and December (UV index 2).

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