Mission Viejo
California, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Mission Viejo, CA

The calm waters on Lake Mission Viejo, California, and a view of the lakeside homes and trees, a distant view of high hills, light clouds in the sky
The calm waters on Lake Mission Viejo, California, and a view of the lakeside homes and trees, a distant view of high hills, light clouds in the sky
The first month of the autumn, September, is still a warm month in Mission Viejo, California, with temperature in the range of an average low of 59°F (15°C) and an average high of 80.1°F (26.7°C).

Temperature

The warmest months are August and September, with an average high-temperature of 80.1°F (26.7°C).

Rainfall

In Mission Viejo, California, 0.3" (6.4mm) of precipitation is typically accumulated. Throughout the year, 13.9" (354.1mm) of rain is accumulated.

Daylight

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

What are the warmest months in Mission Viejo?

Warmest months in Mission Viejo, California, are August and September, with an average high-temperature of 80.1°F (26.7°C).

What is the temperature in September in Mission Viejo?

The average high-temperature, in September, in Mission Viejo, California, is 80.1°F (26.7°C), while the average low-temperature is 59°F (15°C).

How much does it rain in Mission Viejo in September?

Throughout September, 0.3" (6.4mm) of precipitation is accumulated.

What is the average length of the day in September in Mission Viejo?

The average length of the day in September in Mission Viejo, California, is 12.4h.
Average temperature in September - Mission Viejo, CA
  • Average high temperature in September: 80°F

Warmest months (with the highest average high temperature) are August and September (80°F).
The month with the lowest average high temperature is December (67°F).

  • Average low temperature in September: 59°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is December (43°F).

Average rainfall in September - Mission Viejo, CA
  • Average rainfall in September: 0.3"

The wettest month (with the highest rainfall) is February (3.4").
The driest month (with the lowest rainfall) is August (0").

Average daylight in September - Mission Viejo, 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: 10h).