Cozy
Crewneck and Espadrilles
A black crewneck and fleece leggings with espadrilles in the heat is the statement of someone who runs cold. The knit beanie seals the commitment.
What to Wear in Long Beach in September
September in Long Beach is warm, sunny, and almost completely dry — Southern California summer at its most settled, with highs near 81°F and lows around 66°F. With essentially 1 rainy day for the month, the weather is highly predictable. Light summer clothes and a layer for the marine layer mornings and breezy evenings along the waterfront are all you need.
What to wear
top / Short-Sleeve Top
classic tee
bottom / Jeans
straight-leg
chinos for a slightly smarter look
footwear / Sneakers
white sneakers
cushioned for all-day city walking
Consider bringing:
Sunglasses
Based on typical September conditions in Long Beach. Weather varies year to year — check the live forecast when you're within two weeks of your trip.
September in Long Beach, CA, offers delightful weather, marking a sweet spot between summer warmth and the mild onset of autumn. Expect daytime temperatures to comfortably range from the low to mid-70s°F (22-25°C), often peaking in the afternoons with abundant sunshine. Evenings and mornings cool down noticeably, typically dipping into the mid-60s°F (18-20°C), especially near the coast due to refreshing ocean breezes. The infamous 'June Gloom' is largely a memory by September, giving way to consistently clear skies. Precipitation is highly unlikely; September is one of Long Beach's driest months. This significant daily temperature swing makes layering essential for navigating the city comfortably. For daytime, opt for breathable fabrics like cotton or linen in shorts, skirts, light dresses, or t-shirts. Always have a light jacket, cardigan, or denim jacket handy for cooler mornings, breezy afternoons by the water, or evening outings. Comfortable walking shoes are a must for exploring attractions like Shoreline Village or Belmont Shore. Sunglasses and a hat are advisable for sun protection during the day.
Curated Looks
Chic
Blue Linen Gold Sunnies
A blue linen collarless blouse over ivory wide-leg linen trousers in the heat is understated and intentional. Gold-frame aviators are the only thing needed to complete the picture.
Cute
Open Knit Denim Mini
A dusty blue open-knit sweater worn loose over a denim mini skirt is the easy hot-day look. Espadrilles and a crochet hat keep it relaxed and summery.
Business Casual
White Linen Blouse Out
A white linen sleeveless blouse tucked into cream wide-leg linen trousers is the clean hot-weather business-casual answer. Espadrilles and gold aviators are all the styling it needs.
Sporty
Tank Cap and Espadrilles
A white athletic tank with black biker shorts and espadrilles is the clean hot-day sporty look. An olive baseball cap is the functional accessory that pulls the palette.
Sporty
White Tank Race Day
A white sleeveless athletic tank keeps things breathable at 80°F with black biker shorts holding the athletic silhouette. The baseball cap handles the sun.
Casual
Wide-Leg Linen Morning
A white oversized button-down with ivory wide-leg linen trousers is the understated hot-day summer uniform. Espadrilles and a crochet bucket hat finish it without effort.
Formal
Ivory Silk Maxi Heat
An ivory silk-look blouse and black pleated maxi skirt in the heat is the formal look that earns its occasion without adding weight. Espadrilles keep it grounded in the season.
Packing List
What to Pack for Long Beach in September →
Other Months in Long Beach
Frequently Asked Questions
What to wear in Long Beach in September?+
For Long Beach in September, focus on versatile layers. Daytime calls for light, breathable clothing such as shorts, skirts, dresses, or t-shirts. Evenings necessitate a light jacket, cardigan, or denim layer as temperatures cool. Comfortable walking shoes are essential for exploring, and sunglasses are recommended for the abundant sunshine.
Is Long Beach cold in September?+
No, Long Beach is generally not cold in September. Daytime temperatures are pleasantly warm, typically in the low to mid-70s°F (22-25°C). However, evenings and mornings can feel cooler, dropping into the mid-60s°F (18-20°C), especially with coastal breezes. A light jacket or sweater is advisable for these times.
Does it rain in Long Beach in September?+
Rain is highly improbable in Long Beach during September. The month is historically one of the driest, characterized by clear skies and abundant sunshine. You can confidently leave your heavy rain gear at home, though a light umbrella could be packed as a 'just in case' measure, purely out of habit.
What should I pack for Long Beach in September?+
Pack a mix of light clothing suitable for warm days, including shorts, t-shirts, light dresses, and skirts. Crucially, include layering pieces such as a light jacket, cardigan, or a denim jacket for cooler evenings and mornings. Don't forget comfortable walking shoes, sandals, sunglasses, sunscreen, and possibly swimwear if you plan on visiting the beach.
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