Brea Weather in September

Brea in September sees very high temperatures, with highs around 32°C (90°F) and overnight lows of 17°C (63°F). With just 5.5 mm (0.2 in) of rainfall on average, rain is rarely an issue.

Rainfall in Brea in September

Typically around a single day of rainfall are expected, averaging 5.5 mm (0.2 in) for the month. Any rain that does arrive is likely to be fairly light and short-lived.

Temperature in Brea in September

Brea has excellent weather in September, with days reaching 32°C (90°F) and nights cooling to 17°C (63°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. Nights drop to around 17°C (63°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Brea in September

The month enjoys around 290 hours of sunshine, creating mostly sunny days with good weather conditions.

If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Brea. Our weather planner can help you explore destinations with more pleasant weather conditions.

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• January
• February
• March
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• May
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• October
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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 Brea's climate page.

Brea Temperature in September

Min Temperature 17°C (63°F)  

Max Temperature 32°C (90°F)  

Chance of Rain 3%  

Precipitation 5.5 mm (0.2 in)  

Rainy days a single day  

Sunshine 290 hours *  

Percentage Sunshine *  

* Data from: Corona, the United States of America (30 KM, 18 Miles).

What to Wear in Brea in September

Warm but pleasant conditions in Brea 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Brea 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 Brea's climate page.

More climate data for Brea

Temperature Rainfall Sunshine

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