September weather forecast and climate
Sonoma, CA

Neat rows of vines in a vineyard farm in Sonoma, California, the sun rays beaming through the cloudy sunset sky, and distant hilly silhouettes
Neat rows of vines in a vineyard farm in Sonoma, California, the sun rays beaming through the cloudy sunset sky, and distant hilly silhouettes
September, the first month of the autumn, in Sonoma, is still a hot month, with average temperature ranging between max. 86.4°F (30.2°C) and min. 49.3°F (9.6°C).

Temperature

The average high-temperature, in Sonoma, is 86.4°F (30.2°C), while the average low-temperature is 49.3°F (9.6°C).

Rainfall

In September, the rain falls for 1 days. Throughout September, 0.3" (8.4mm) of precipitation is accumulated. Throughout the year, in Sonoma, there are 65 rainfall days, and 29.4" (747.4mm) of precipitation is accumulated.

Daylight

In September, the average length of the day in Sonoma is 12.4h.

What is the temperature in September in Sonoma?

In Sonoma, in September, the average high-temperature is 86.4°F (30.2°C), and the average low-temperature is 49.3°F (9.6°C).

How much does it rain in Sonoma in September?

In September, in Sonoma, California, the rain falls for 1 days. Throughout September, 0.3" (8.4mm) of precipitation is accumulated.

What is the average length of the day in September in Sonoma?

In September, the average length of the day in Sonoma is 12.4h.
Average temperature in September - Sonoma, CA
  • Average high temperature in September: 86.3°F

The warmest month (with the highest average high temperature) is July (88.6°F).
The month with the lowest average high temperature is January (57.2°F).

  • Average low temperature in September: 49.3°F

The month with the highest average low temperature is July (51.2°F).
The coldest month (with the lowest average low temperature) is December (37.1°F).

Average rainfall in September - Sonoma, CA
  • Average rainfall in September: 0.3"

The wettest month (with the highest rainfall) is January (6.1").
The driest month (with the lowest rainfall) is July (0").

Average rainfall days in September - Sonoma, CA
  • Average rainfall days in September: 1 days

Months with the highest number of rainy days are January and December (11 days).
Months with the lowest number of rainy days are July and August (0 days).

Average daylight in September - Sonoma, CA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.5h).

deutscheenglishespañolрусский中文