Los Angeles in September
In September, Los Angeles averages 28°C (82°F) during the day and 17°C (63°F) at night, with only about 1 rainy day.
ShoulderConditions are warm and beach-friendly. Skies are generally dry and clear.
It's peak hurricane season in Los Angeles during September. Travel is possible but expect storm risk, possible flight disruption, and generally lower travel insurance coverage.
How September compares to the rest of the year in Los Angeles
September is one of the warmest months in Los Angeles (3rd of 12) and moderately rainy compared to the rest of the year (9th of 12). Daytime temperature runs 4°C above the annual average (24°C). September runs roughly the same as August (28°C) and cools 2°C in October (26°C).
September sunrise & sunset in Los Angeles
Times shown for Los Angeles local time (America/Los_Angeles), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Los Angeles — September
Golden-hour and blue-hour windows for the 15th of September, in Los Angeles's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Los Angeles in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (Shoulder) and Los Angeles's popularity.
Crowds & pricing — September in Los Angeles
Los Angeles is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Why this tier: excellent tourism weather peak hazard season (1 active)
Sun & mosquito risk — September in Los Angeles
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Sea temperature in Los Angeles — September
Across the year Los Angeles's sea swings from 14.5°C (February) to 21.2°C (August) — September sits at 20.8°C.
Los Angeles in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 20°C / 68°F | 9°C / 48°F | 79 mm | 6 | 0 |
| February | 20°C / 68°F | 10°C / 50°F | 91 mm | 6 | 0 |
| March | 21°C / 70°F | 11°C / 52°F | 56 mm | 5 | 0 |
| April | 22°C / 72°F | 12°C / 54°F | 23 mm | 3 | 0 |
| May | 23°C / 73°F | 14°C / 57°F | 5 mm | 1 | 0 |
| June | 25°C / 77°F | 16°C / 61°F | 2 mm | 0 | 0 |
| July | 28°C / 82°F | 18°C / 64°F | 0 mm | 0 | 0 |
| August | 28°C / 82°F | 18°C / 64°F | 2 mm | 0 | 0 |
| September | 28°C / 82°F | 17°C / 63°F | 5 mm | 1 | 0 |
| October | 26°C / 79°F | 15°C / 59°F | 13 mm | 2 | 0 |
| November | 23°C / 73°F | 12°C / 54°F | 28 mm | 3 | 0 |
| December | 20°C / 68°F | 9°C / 48°F | 56 mm | 5 | 0 |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Los Angeles in September →
Frequently asked questions
How hot is Los Angeles in September?
In September, Los Angeles averages a high of 28°C (82°F) and a low of 17°C (63°F) — generally warm.
Does it rain a lot in Los Angeles in September?
September is generally dry in Los Angeles, with about 1 rainy day on average.
Is September a good time to visit Los Angeles?
September is warm and mostly dry. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Los Angeles in September?
Pack lightweight, breathable clothing, sunglasses and sunscreen. See the full September packing list for Los Angeles for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.