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

September weather forecast and climate
Antioch, CA

A high bridge passing over the famous San Joaquin River Delta in Antioch, California
A high bridge passing over the famous San Joaquin River Delta in Antioch, California
September, the first month of the autumn, in Antioch, is also a hot month, with temperature in the range of an average high of 86.4°F (30.2°C) and an average low of 55.2°F (12.9°C).

Temperature

In Antioch, the average high-temperature is essentially the same as in August - a still tropical 86.4°F (30.2°C). The average low-temperature, in September, is 55.2°F (12.9°C).

Rainfall

In Antioch, during 1 rainfall days, 0.2" (4.6mm) of precipitation is typically accumulated. In Antioch, during the entire year, the rain falls for 54 days and collects up to 13.2" (335.8mm) of precipitation.

Daylight

The average length of the day in September in Antioch is 12.4h.

What is the temperature in September in Antioch?

In Antioch, California, in September, the average high-temperature is 86.4°F (30.2°C), and the average low-temperature is 55.2°F (12.9°C).

How much does it rain in Antioch in September?

In Antioch, in September, during 1 rainfall days, 0.2" (4.6mm) of precipitation is typically accumulated.

How many hours of daylight does Antioch have in September?

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

The warmest month (with the highest average high temperature) is July (91.1°F).
The month with the lowest average high temperature is January (54°F).

  • Average low temperature in September: 55.3°F

The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (37.1°F).

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

The wettest month (with the highest rainfall) is January (2.8").
Driest months (with the lowest rainfall) are July and August (0").

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

The month with the highest number of rainy days is January (10 days).
Months with the lowest number of rainy days are July and August (0 days).

Average daylight in September - Antioch, 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: 9.6h).