Simi Valley weather in September (California, United States of America)

Curious about the climate in Simi Valley this September? Here’s a detailed forecast of the month’s weather patterns.

Temperatures

For September, the weather in Simi Valley is generally perfect, featuring very high temperatures and almost no rainfall. September marks the summer season. Daytime temperatures are expected to be around 30°C, cooling off to about 16°C at night. Expect some days to be hotter than these averages. Stay cool by wearing light clothing and drinking plenty of water throughout the day.

Precipitation

Simi Valley in September usually receives almost no rainfall, averaging around 3.8 mm for the month. Analyzing past climate data, one can expect approximately 0 days of rain.

Average sunshine

Enjoy a sunny month with about 278 hours of sunshine, providing a cheerful and lively atmosphere.

If you favor pleasant temperatures and minimal rainfall, September is one of the better months to visit Simi Valley. February, March, April, May, June, July, August, September, October and November typically offer the most agreeable circumstances. On the other hand, January and December tend to be characterized by conditions that may not be as optimal.

For an in-depth look at the yearly conditions, visit our specialized Simi Valley climate page with graphs.

 

Simi Valley, monthly averages in September

Min Temperature 16°C  

Max Temperature 30°C  

Chance of Rain 1%  

Precipitation 3.8 mm  

Rainy days 0 days  

Humidity 67% *  

Sunshine 278 hours *  

Percentage Sunshine 75% *  

Data from: Los Angeles, the United States of America (51 KM, 31 Miles).

Where to go in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Simi Valley.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.