Fallbrook Weather in September

September in Fallbrook averages 30°C (86°F) during the day and 17°C (63°F) at night. With only 4.4 mm (0.2 in) of rainfall expected on average, it's a largely dry month.

Rainfall in Fallbrook in September

On average, there are about a single day with rain during this month, averaging 4.4 mm (0.2 in). If rain does fall, it tends to be a moderate shower rather than anything heavy.

Temperature in Fallbrook in September

If you're visiting Fallbrook in September, expect perfect temperatures with highs of 30°C (86°F) and overnight lows of 17°C (63°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. With overnight lows of 17°C (63°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. It's the warmest month of the year on average, so summer clothing is the way to go.

Sunshine in Fallbrook in September

Expect sunny days throughout the month, with an estimated 290 hours of sunshine. This makes it a pleasant time to visit Fallbrook.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Fallbrook. Our weather planner can help you explore destinations with more pleasant weather conditions.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Fallbrook's climate page.

Fallbrook Temperature in September

Min Temperature 17°C (63°F)  

Max Temperature 30°C (86°F)  

Chance of Rain 3%  

Precipitation 4.4 mm (0.2 in)  

Rainy days a single day  

Sunshine 290 hours *  

Percentage Sunshine *  

* Data from: Corona, the United States of America (62 KM, 38 Miles).

What to Wear in Fallbrook in September

Warm but pleasant conditions in Fallbrook in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Dry conditions mean you won't need to worry about rain protection. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Fallbrook in September

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

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Fallbrook's climate page.

More climate data for Fallbrook

Temperature Rainfall Sunshine

See the full Fallbrook climate overview or explore weather in the United States of America.