Waterfall and gardens at Grand Tradition Estate in Fallbrook, photographed September 25, 2018.

Weather · September

Fallbrook weather in September

Average highs of 88°F, lows of 62°F and 0.10 in of rain, from 30 years of weather records.

September is Fallbrook’s 2nd warmest month, with average highs of 88°F and lows of 62°F. That is 1° cooler than August, and 11° above the yearly average high.

Average high
88°F
Average low
62°F
Precipitation
0.10 in
Wet days
2
Sunrise · sunset
6:32 AM · 6:56 PM

September across the year

  1. 68°47°Jan
  2. 67°46°Feb
  3. 70°48°Mar
  4. 72°51°Apr
  5. 75°53°May
  6. 81°56°Jun
  7. 87°60°Jul
  8. 89°62°Aug
  9. 88°62°Sep
  10. 83°58°Oct
  11. 74°52°Nov
  12. 67°46°Dec

High and low Rain

What to wear in September

  • Warm days: shorts and T-shirts.

September is good for

What’s on in Fallbrook in September

See all upcoming events.

Around Fallbrook

180925 036 Fallbrook - Grand Tradition Estate, Upper Waterfall Garden, Schefflera pueckleri Mallet Flower
180925 036 Fallbrook - Grand Tradition Estate, Upper Waterfall Garden, Schefflera pueckleri Mallet Flowercultivar413 · CC BY 2.0
180925 005 Fallbrook - Grand Tradition Estate, parking lot, Jacaranda mimosifolia, Buxus sp Boxwood, Rosa cvs
180925 005 Fallbrook - Grand Tradition Estate, parking lot, Jacaranda mimosifolia, Buxus sp Boxwood, Rosa cvscultivar413 · CC BY 2.0
180925 039 Fallbrook - Grand Tradition Estate, Parking Lot, Aptenia cordifolia
180925 039 Fallbrook - Grand Tradition Estate, Parking Lot, Aptenia cordifoliacultivar413 · CC BY 2.0

See Fallbrook

A look around town before you go.

[4K] Fallbrook CA Walk | Rural California, Main Street & Quiet Neighborhoods video thumbnail

A WALK AROUND TOWN

[4K] Fallbrook CA Walk | Rural California, Main Street & Quiet Neighborhoods

Recorded footage by Funky Towns & Hoods. Not live road conditions.

Watch on YouTube ↗

September compared with the months around it

MonthHighLowRain
August89°F62°F0.20 in
September88°F62°F0.10 in
October83°F58°F0.70 in

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

Questions

How hot does it get in Fallbrook in September?

Average highs are 88°F and average lows 62°F, for a daily mean of 75°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Fallbrook in September?

September averages 0.10 in of precipitation over about 2 days with at least 0.01 in. It is the 12th wettest month of the year.

What time is sunset in Fallbrook in September?

Around mid-September the sun rises about 6:32 AM and sets about 6:56 PM, for roughly 12.4 hours of daylight.

Is September a good time to visit Fallbrook?

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

NOAA U.S. Climate Normals 1991–2020, Fallbrook 5 Ne station (5.6 mi from downtown). Sunrise and sunset are calculated for September 15 at the city’s coordinates.

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