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

September weather forecast and climate
Pasadena, CA

The iconic intricate design of the classical Pasadena City Hall in California, with neon-lit paths and natural gardens, under a perfect blue night sky
The iconic intricate design of the classical Pasadena City Hall in California, with neon-lit paths and natural gardens, under a perfect blue night sky
September, the first month of the autumn, in Pasadena, is still a tropical month, with temperature in the range of an average high of 88.5°F (31.4°C) and an average low of 60.6°F (15.9°C).

Temperature

In September, the average high-temperature is essentially the same as in August - a still tropical 88.5°F (31.4°C). The average low-temperature, in Pasadena, is 60.6°F (15.9°C).

Rainfall

In Pasadena, California, during September, it is raining for 1.7 days. In Pasadena, California, during the entire year, the rain falls for 43.8 days.

Daylight

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

What is the temperature in September in Pasadena?

The average high-temperature, in September, in Pasadena, California, is 88.5°F (31.4°C), while the average low-temperature is 60.6°F (15.9°C).

How many days does it rain in September in Pasadena?

In September, the rain falls for 1.7 days.

How many hours of daylight does Pasadena have in September?

The average length of the day in September is 12.4h.
Average temperature in September - Pasadena, CA
  • Average high temperature in September: 88.5°F

The warmest month (with the highest average high temperature) is August (90.6°F).
The month with the lowest average high temperature is January (67.8°F).

  • Average low temperature in September: 60.6°F

The month with the highest average low temperature is August (62°F).
The coldest month (with the lowest average low temperature) is December (44.1°F).

Average rainfall days in September - Pasadena, CA
  • Average rainfall days in September: 1.7 days

The month with the highest number of rainy days is March (7.7 days).
The month with the lowest number of rainy days is July (0.5 days).

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

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).