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Typical September weather

Los Angeles

California · September

Santa Ana heat, empty beaches, the warmest water all year.

83° days
64° nights

rain is rare · 12½ hours of daylight · ocean 69°

What to pack

What September feels like

September is the sneaky beach month — kids are back in school and the ocean is at its warmest. The catch is the first Santa Anas, which shove hot dry air all the way to the coast and put the whole basin on fire watch.

Rain is genuinely rare — most years, September stays dry start to finish. about 6 afternoons top 90°.

Can you swim?

The ocean runs about 69° — brisk but swimmable.

The numbers

Typical high83°
Typical low64°
Days with real rain0
Total rain0.1 in
Water temperature69°
Sunrise / sunset (mid-month)6:36 am / 6:59 pm

How September compares

See the whole year in Los Angeles ›