Do I need a jacket in Long Beach in September?

Probably not for daytime — highs average around 81°F. A light layer for air-conditioned interiors is enough.

Will it rain in Long Beach in September?

Only about 1 rainy days on average — a packable rain shell is usually enough without a full umbrella.

Daytime highs average around 81°F. Lean toward breathable fabrics like cotton and linen, and bring sun protection.

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Linen shirts
Linen remains the fabric of choice for Long Beach's 81°F September afternoons, offering comfort and a nautical look.
Lightweight denim shorts
Perfect for the casual 81°F September weather in the Belmont Shore and Naples neighborhoods.
Cotton t-shirts
Simple cotton tees are ideal for a day at the Aquarium of the Pacific or walking the Long Beach shoreline.
Lightweight maxi skirt
A long, airy skirt is comfortable for the 81°F daytime heat and provides some coverage for 66°F evenings.

Fashionable sandals
Stay cool and stylish in the 81°F September sun while exploring the East Village Arts District.
Canvas sneakers
Lightweight sneakers are a versatile choice for the 81°F days and the 5-mile Long Beach beach path.
Boat shoes
Boat shoes are a Long Beach classic, perfect for a September afternoon at the Rainbow Harbor marinas.
Comfortable flip-flops
Essential for late-summer beach visits when the Long Beach air is still a warm 81°F.

Polarized sunglasses
Eye protection is still vital in September; the sun remains bright over the Long Beach waterfront.
Lightweight sun hat
Protect yourself from the 81°F September sun during outdoor dining at Shoreline Village.
Thin zip-up hoodie
A light layer is useful for when the 66°F ocean breeze picks up after the sun goes down in Long Beach.
Canvas tote bag
Long Beach's 81°F September days are ideal for walking the waterfront; a tote handles layers, sunscreen, and Shoreline Village shopping in one bag.

Daily sunscreen
The September sun in Long Beach is still very strong; protect your skin during your 81°F outdoor activities.
Insulated water bottle
Stay hydrated during the warm 81°F September days while exploring the city's many outdoor attractions.
Cooling towel
A refreshing accessory for the warmest parts of a 81°F September afternoon in Long Beach.
Small umbrella
While there's only 1 day of rain typical in September, it's good to be prepared for a surprise late-summer shower.

September is often the best time to visit Long Beach as the crowds thin out but the 81°F weather remains summer-like.

Keep an eye out for 'Santa Ana' wind events in September, which can bring much hotter, drier air to the Long Beach coast.

The water temperature is at its peak in September, making it the best month for paddleboarding in the Naples canals.

Probably not for daytime — highs average around 81°F. A light layer for air-conditioned interiors is enough.
Only about 1 rainy days on average — a packable rain shell is usually enough without a full umbrella.
Daytime highs average around 81°F. Lean toward breathable fabrics like cotton and linen, and bring sun protection.