Los Angeles weather in September
Los Angeles in September averages 21°C (70°F) and 3 mm of rain. It is one of the driest months of the year here.
Of the twelve months in Los Angeles, September is the second warmest and the fourth driest.
- Average temp
- 21°C (70°F)
18–25°C · 64–76°F
- Rainfall
- 3 mm
Not much rain
- Sunshine
- —
- Wind
- 12 km/h
What is Los Angeles like in September?
Daytime
Days are mild.
Rain
Rain is usually light.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Los Angeles in September?
A layer for the evening
Evenings cool off noticeably once the sun is down.
September compared with August and October
September in Los Angeles is about the same temperature as August and about as wet as it, which averages 21°C (71°F).
September in Los Angeles is 1.7°C warmer than October and 10 mm drier than it, which averages 20°C (67°F).
Daylight in Los Angeles in September
On 15 September the sun is up for 12 hours 22 minutes in Los Angeles, rising about 06:36 and setting about 18:58 local time.
September ends 1 hour 1 minute shorter than it begins, so the last week of the month is a different length of day from the first.
That is 2 hours 3 minutes short of June, the longest-lit month here.
Where to stay in Los Angeles
Dates are a starting point for September.
Travel guides for Los Angeles
What to read before you book.
Los Angeles weather by month
TemperatureRainfall
How September compares with the rest of the year
September is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 14°C / 58°F | 73 mm |
| February | 14°C / 58°F | 76 mm |
| March | 15°C / 59°F | 44 mm |
| April | 16°C / 61°F | 16 mm |
| May | 18°C / 64°F | 7 mm |
| June | 19°C / 67°F | 2 mm |
| July | 21°C / 69°F | 1 mm |
| August | 21°C / 71°F | 0 mm |
| September | 21°C / 70°F | 3 mm |
| October | 20°C / 67°F | 13 mm |
| November | 17°C / 62°F | 21 mm |
| December | 14°C / 58°F | 57 mm |
Check another month
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FAQs about Los Angeles in September
September climate averages for Los Angeles, 1991–2020.
Los Angeles averages 21°C (70°F) in September, ranging from about 18°C (64°F) at night to 25°C (76°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Barely. September sees only about 3 mm, so rain is unlikely to affect your plans.
Yes. September averages 21°C (70°F) against 20°C (67°F) in October — 1.7°C warmer.
September is about as warm as August, and about as wet.
Yes. September falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what September is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 12 hours 22 minutes of daylight in mid-September, against 14 hours 25 minutes in June and 9 hours 54 minutes in December.
On 15 September, sunrise is about 06:36 and sunset about 18:58 local time. Both shift across the month — the month ends 1 hour 1 minute shorter than it starts.
