What to Wear in Los Angeles in September
September in Los Angeles is warm, sunny, and nearly dry — the continuation of summer with highs around 83°F and lows near 67°F. With essentially 1 rainy day expected, the weather is exceptionally reliable. Light summer clothes with a layer for the rare marine layer morning or breezy Malibu evening cover the full range.
What to wear
top / Tank & Cami
tank top
breathable — lets heat escape in warm weather
bottom / Shorts
denim shorts
breathable fabric for high-heat days
lightweight linen pants for more coverage
footwear / Sandals
flat sandals
let feet breathe in the heat
white sneakers if you walk a lot
Based on typical September conditions in Los Angeles. Weather varies year to year — check the live forecast when you're within two weeks of your trip.
September is one of the warmest and sunniest months in Los Angeles — the marine layer that keeps June and July mornings grey has retreated inland, the Santa Monica and Malibu beaches are bathed in clear afternoon light, and the Hollywood Hills trails offer panoramic views of the basin under deep blue skies. Griffith Observatory and the Griffith Park trails are exceptional in September's warm, clear conditions, and the outdoor dining culture along Melrose Avenue, in Silver Lake, and on the Abbot Kinney corridor runs well into warm September evenings. Late-month Santa Ana wind events can push temperatures into the 90s with extremely low humidity — the famous 'earthquake weather' of Southern California lore, when the basin bakes under offshore desert air. The Los Angeles September wardrobe is among the easiest to pack for in any American city — almost no rain, warm and predictable afternoons, and a simple morning-to-evening range from 67°F to 83°F that doesn't require elaborate layering. The marine layer occasionally affects coastal neighborhoods like Venice and Santa Monica in the early morning, keeping temperatures in the mid-60s until midday, while inland neighborhoods like Pasadena and the San Fernando Valley can be several degrees warmer than the coast. A light layer — a linen blazer, denim jacket, or light cardigan — handles both the coastal morning cool and the evenings on Malibu's PCH restaurants when the sea breeze picks up.
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Frequently Asked Questions
What should I wear in Los Angeles in September?+
Light summer clothes are perfect for September's warm, dry days — highs near 83°F with almost no rain. A light layer (linen blazer, denim jacket, or cardigan) handles coastal marine layer mornings and breezy evenings. Santa Ana events can push temperatures to the 90s briefly — dress in breathable fabrics for those days.
Is September a good time to visit Los Angeles?+
September is one of LA's best months — clear skies, warm temperatures, and beach weather at its peak. Griffith Park and the Hollywood Hills trails are excellent, the outdoor dining scene is fully active, and the city's arts and entertainment calendar runs at full capacity.
What shoes are best for Los Angeles in September?+
Comfortable walking shoes or sandals work well for most LA neighborhoods. For Griffith Park trails or hiking in the Santa Monica Mountains, trail shoes with grip are worth wearing — dusty, rocky terrain can be uneven even on popular routes.
How warm is Los Angeles in September?+
Highs average around 83°F with low humidity in most neighborhoods. The coast runs slightly cooler with marine influence, while inland areas like Pasadena and the San Fernando Valley can reach the upper 80s. Santa Ana wind events occasionally push temperatures into the 90s with very low humidity.
What should I pack for a September trip to Los Angeles?+
Pack light summer clothes, sandals and walking shoes, sunscreen (LA September sun is intense), sunglasses, and a light packable layer for coastal evenings and air-conditioned restaurants. September is one of the easiest months in LA to pack for — minimal rain, consistent warmth, simple layering needs.