Weather in Los Angeles in September

September in Los Angeles is warm outdoor weather. Days are long enough to be useful. Shade starts to matter at midday.

In United States, this is how Los Angeles actually wears September, not how a country centroid would. Compared with August and December, September sits in the middle of Los Angeles's year.

Los Angeles
Average temp
21°C

18–25°C

Rainfall
3 mm

Not much rain

Sunshine
Wind
12 km/h

What to expect

Daytime

Warm days in Los Angeles in September. A hat starts to earn its keep at midday. Evenings are the comfortable part of the clock.

You can walk at more hours than in the fierce months. Still build in a pause when the sun is high. Nights are easy.

Rain

Rain is not the story in Los Angeles in September. Pack for sun. A shower would be news, not a plan.

Do not build the trip around weather windows. Build it around shade if it is hot, and around getting outside if it is not.

Evening

Evenings are cooler. A layer helps after sunset.

What to pack

  • A layer for cooler evenings

Where to stay in Los Angeles

Dates are a starting point for September.

All hotels in Los Angeles

Average weather in Los Angeles

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 28 Aug 2026265 places covered

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FAQs about Los Angeles

Climate averages for Los Angeles, 1991–2020.

The best time to visit Los Angeles is between May and October, the most comfortable stretch of the year on these averages.

August is the hottest month, with an average around 21°C.

February is the wettest month, with about 76 mm of rain.

No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.