Monthly climate guide
Los Angeles weather in September
Expect hot weather in Los Angeles in September: afternoons reach about 30°C (86°F), while nights drop to around 18°C (65°F). Around 4 mm of rain falls over the month (very dry), and skies are mostly sunny. Daytime highs are about the same as August and 3°C warmer than October.
What stands out in September
- It's one of the drier months, with about 84% less rain than Los Angeles's average.
- With the heat, see Hollywood Walk of Fame early in the morning or late in the afternoon.
- Los Angeles is usually about 6°C warmer than Santa Ana, 50 km away, in September.
- September is Los Angeles's second warmest month.
Avg high
30°C
86°F
Avg low
18°C
65°F
Rainfall
4 mm
very dry
Humidity
50%
relative
Sky
19%
cloud · mostly sunny
Los Angeles weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 19°C / 66°F | 8°C / 47°F | 68 mm | 60% | 44% |
| February | 19°C / 66°F | 8°C / 46°F | 53 mm | 61% | 35% |
| March | 20°C / 68°F | 9°C / 49°F | 57 mm | 65% | 44% |
| April | 22°C / 72°F | 11°C / 51°F | 17 mm | 61% | 35% |
| May | 24°C / 74°F | 12°C / 54°F | 10 mm | 63% | 32% |
| June | 27°C / 81°F | 15°C / 58°F | 1 mm | 56% | 21% |
| July | 30°C / 86°F | 18°C / 64°F | 3 mm | 51% | 18% |
| August | 31°C / 88°F | 19°C / 65°F | 1 mm | 48% | 14% |
| September | 30°C / 86°F | 18°C / 65°F | 4 mm | 50% | 19% |
| October | 27°C / 81°F | 15°C / 60°F | 8 mm | 50% | 22% |
| November | 22°C / 72°F | 11°C / 53°F | 27 mm | 52% | 32% |
| December | 18°C / 65°F | 8°C / 47°F | 56 mm | 56% | 40% |
What to pack for September
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- An extra layer — evenings are noticeably cooler than afternoons
- Sunglasses
Is September a good time to visit Los Angeles?
Our Los Angeles guide recommends: March to May or September to November, when temperatures are comfortable and coastal fog is less frequent.
Budget real time for driving between neighbourhoods — LA's distances look short on a map but traffic can make them slow.
Best time to visit Los Angeles →Other United States cities in September
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Los Angeles weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/usa/los-angeles/september
<a href="https://weathercompare.eu/weather/usa/los-angeles/september">Los Angeles weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/usa/los-angeles" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Los Angeles weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/usa/los-angeles/september">Los Angeles weather in September</a> – WeatherCompare</p>
Los Angeles in September: quick answers
Is September a good time to visit Los Angeles?
September is a reasonable time for Los Angeles: highs around 30°C and about 4 mm of rain, though not one of the three best months.
How warm is Los Angeles in September?
Average highs are about 30°C (86°F) and average lows about 18°C (65°F), based on 10 years of daily data.
Does it rain a lot in Los Angeles in September?
Los Angeles typically gets around 4 mm of rain in September — very dry.
When is the best time to visit Los Angeles?
March to May or September to November, when temperatures are comfortable and coastal fog is less frequent.
Figures are long-term averages for the area around Los Angeles (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.