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

September weather forecast and climate
Livermore, CA

A path in the scenic hilly and forest landscape of the iconic Lake Del Valle Regional Park in Livermore, California
A path in the scenic hilly and forest landscape of the iconic Lake Del Valle Regional Park in Livermore, California
The first month of the autumn, September, is still a tropical month in Livermore, California, with average temperature ranging between max 86°F (30°C) and min 52.5°F (11.4°C).

Temperature

In September, the average high-temperature is relatively the same as in August - a still hot 86°F (30°C). In Livermore, the average low-temperature is 52.5°F (11.4°C).

Rainfall

In Livermore, California, in September, 0.2" (5.6mm) of precipitation is typically accumulated. Throughout the year, 14.2" (360.3mm) of rain is accumulated.

Daylight

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

What is the temperature in September in Livermore?

In September, the average high-temperature is 86°F (30°C), and the average low-temperature is 52.5°F (11.4°C).

How much does it rain in Livermore in September?

In Livermore, California, in September, 0.2" (5.6mm) of precipitation is typically accumulated.

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

The average length of the day in September in Livermore is 12.4h.
Average temperature in September - Livermore, CA
  • Average high temperature in September: 86°F

The warmest month (with the highest average high temperature) is July (89°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in September: 52.5°F

The month with the highest average low temperature is July (54.2°F).
The coldest month (with the lowest average low temperature) is January (36.7°F).

Average rainfall in September - Livermore, CA
  • Average rainfall in September: 0.2"

The wettest month (with the highest rainfall) is January (3").
Driest months (with the lowest rainfall) are July and August (0").

Average rainfall days in September - Livermore, CA
  • Average rainfall days in September: 0 days

Months with the highest number of rainy days are January, February and December (6 days).
Months with the lowest number of rainy days are June, July, August and September (0 days).

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

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.6h).