Downtown Livermore California

Weather · September

Livermore weather in September

Average highs of 85°F, lows of 55°F and 0.10 in of rain, from 30 years of weather records.

September is Livermore’s 3rd warmest month, with average highs of 85°F and lows of 55°F. That is 2° cooler than August, and 13° above the yearly average high.

Average high
85°F
Average low
55°F
Precipitation
0.10 in
Wet days
1
Sunrise · sunset
6:48 AM · 7:16 PM

September across the year

  1. 57°38°Jan
  2. 61°40°Feb
  3. 65°42°Mar
  4. 69°45°Apr
  5. 75°49°May
  6. 83°54°Jun
  7. 88°57°Jul
  8. 88°57°Aug
  9. 85°55°Sep
  10. 78°49°Oct
  11. 66°42°Nov
  12. 58°38°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 Livermore in September

See all upcoming events and school days off.

See Livermore

A look around town before you go.

Driving in Downtown Livermore, California - 4K video thumbnail

A DRIVE AROUND TOWN

Driving in Downtown Livermore, California - 4K

Driving in Downtown Livermore, California - 4K. A film shared by Wei City Tour.

Watch on YouTube ↗

September compared with the months around it

MonthHighLowRain
August88°F57°F0.10 in
September85°F55°F0.10 in
October78°F49°F0.80 in

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

Questions

How hot does it get in Livermore in September?

Average highs are 85°F and average lows 55°F, for a daily mean of 70°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Livermore in September?

September averages 0.10 in of precipitation over about 1 days with at least 0.01 in. It is the 11th wettest month of the year.

What time is sunset in Livermore 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 Livermore?

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

NOAA U.S. Climate Normals 1991–2020, Livermore Muni Ap station (3 mi from downtown). Sunrise and sunset are calculated for September 15 at the city’s coordinates.

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