THINGS TO DO · YOUTUBE SHORT
Things to Do in Simi Valley!
A local activity Short shared by Teresa in California.
Watch on YouTube ↗
Weather · September
Simi Valley weather in September
Average highs of 94°F, lows of 59°F and 0.10 in of rain, from 30 years of weather records.
September is Simi Valley’s 3rd warmest month, with average highs of 94°F and lows of 59°F. That is 3° cooler than August, and 12° above the yearly average high.
- Average high
- 94°F
- Average low
- 59°F
- Precipitation
- 0.10 in
- Wet days
- 1
- Sunrise · sunset
- 6:37 AM · 7:02 PM
September across the year
High and low Rain
What to wear in September
- Hot days: light, breathable clothes, a sun hat, sunscreen and plenty of water for anything outdoors.
September is good for
- Early-morning or evening outings, with indoor plans for the afternoon heat
What’s on in Simi Valley in September
See all upcoming events.
Around Simi Valley
See Simi Valley
A look around town before you go.
THINGS TO DO · YOUTUBE SHORT
Top Things to do in Simi Valley.
A local activity Short shared by Lian Turnbough.
Watch on YouTube ↗September compared with the months around it
Planning a trip? See the best time to visit Simi Valley and today’s forecast.
Questions
How hot does it get in Simi Valley in September?
Average highs are 94°F and average lows 59°F, for a daily mean of 76°F. Individual days run hotter or colder than these 30-year averages.
Does it rain in Simi Valley in September?
September averages 0.10 in of precipitation over about 1 days with at least 0.01 in. It is the 10th wettest month of the year.
What time is sunset in Simi Valley in September?
Around mid-September the sun rises about 6:37 AM and sets about 7:02 PM, for roughly 12.4 hours of daylight.
Is September a good time to visit Simi Valley?
The mildest months for visiting are April, May, November. September is hot, with Halloween events.
NOAA U.S. Climate Normals 1991–2020, Woodland Hills Pierce College station (11.3 mi from downtown). Sunrise and sunset are calculated for September 15 at the city’s coordinates.