Aerial view of Antioch and the San Joaquin River Delta

Weather · September

Antioch weather in September

Average highs of 87°F, lows of 59°F and 0.10 in of rain, from 30 years of weather records.

September is Antioch’s 3rd warmest month, with average highs of 87°F and lows of 59°F. That is 3° cooler than August, and 13° above the yearly average high.

Average high
87°F
Average low
59°F
Precipitation
0.10 in
Wet days
0
Sunrise · sunset
6:48 AM · 7:16 PM

September across the year

  1. 56°40°Jan
  2. 61°44°Feb
  3. 67°47°Mar
  4. 72°50°Apr
  5. 79°54°May
  6. 86°59°Jun
  7. 91°61°Jul
  8. 90°60°Aug
  9. 87°59°Sep
  10. 78°54°Oct
  11. 65°46°Nov
  12. 56°40°Dec

High and low Rain

What to wear in September

  • Warm days: shorts and T-shirts, with a light layer for cooler evenings.

September is good for

What’s on in Antioch in September

See all upcoming events and school days off.

Around Antioch

Carnegie Library in Antioch, California, front
Carnegie Library in Antioch, California, frontMliu92 · CC BY-SA 4.0
Carnegie Library in Antioch, California, side
Carnegie Library in Antioch, California, sideMliu92 · CC BY-SA 4.0
Antioch Library (rear)
Antioch Library (rear)Mliu92 · CC BY-SA 4.0

See Antioch

A look around town before you go.

Senior-Friendly Travel Tips: Explore Antioch, California, with Ease! video thumbnail

THINGS TO DO · YOUTUBE SHORT

Senior-Friendly Travel Tips: Explore Antioch, California, with Ease!

A local activity Short shared by Kblz AI.

Watch on YouTube ↗

September compared with the months around it

MonthHighLowRain
August90°F60°F0.00 in
September87°F59°F0.10 in
October78°F54°F0.40 in

Planning a trip? See the best time to visit Antioch and today’s forecast.

Questions

How hot does it get in Antioch in September?

Average highs are 87°F and average lows 59°F, for a daily mean of 73°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Antioch in September?

September averages 0.10 in of precipitation over about 0 days with at least 0.01 in. It is the 10th wettest month of the year.

What time is sunset in Antioch in September?

Around mid-September the sun rises about 6:48 AM and sets about 7:16 PM, for roughly 12.5 hours of daylight.

Is September a good time to visit Antioch?

The mildest months for visiting are April, May, October. September is warm, with Halloween events.

NOAA U.S. Climate Normals 1991–2020, Antioch Pumping Plt #3 station (3.3 mi from downtown). Sunrise and sunset are calculated for September 15 at the city’s coordinates.

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