Business Casual
Mauve Happy Hour
At 65–74°F the mauve tie-front cropped linen shirt earns its place over ivory wide-leg linen trousers. Ivory pointed-toe mules and aviator sunglasses make the commute feel like an editorial moment.
What to Wear in San Francisco in September
What to wear
top / Short-Sleeve Top
classic tee
bottom / Jeans
straight-leg
chinos for a slightly smarter look
footwear / Sneakers
classic sneakers
cushioned for all-day city walking
Consider bringing:
Sunglasses
Based on typical September conditions in San Francisco. Weather varies year to year — check the live forecast when you're within two weeks of your trip.
San Francisco in September is dry and clear, with average highs near 73°F. September is one of San Francisco's driest months — rainfall is rare and conditions are reliably clear. Light layers — a cardigan or denim jacket — cover morning and evening temperature dips. Plan outfits that can transition comfortably between outdoor conditions and air-conditioned interiors. The layering-obsessed, fog-adapted, quietly stylish style sensibility shapes what works here — practical and polished, comfort-forward without sacrificing presence. Whether you're exploring San Francisco's neighborhoods or attending events, September rewards dressers who layer thoughtfully and prioritize fabric quality for the conditions.
Curated Looks
Casual
Bright, Blue, and Breezy
Embrace the 65–74°F sunny weather with a breathable linen shirt, classy bermuda shorts, and espadrilles. Pair it with a class bucket bag for that summer ready look.
Chic
White Shirt Wide-Leg
A white oversized button-down with ivory wide-leg linen trousers and a brown woven belt is the warm-clear uniform for someone who doesn't overthink it. Black mule heels are the one decisive choice.
Cozy
Cable Knit and Mules
A grey cable knit with fleece-lined leggings and black mules in warmer weather is cozy without capitulating to the temperature. A knit beanie on a warm-clear day feels like a choice.
Cute
Floral Skirt and Mules
A floral pleated midi skirt with a white fitted tank and black mules reads warm-day dressed-up without veering formal. A crochet bucket hat shifts the mood back to weekend.
Formal
Ivory and Pleated Maxi
An ivory silk-look blouse tucked into a black pleated maxi skirt is the warm-clear formal look with evening flexibility. Espadrilles and a black mini bag make it daytime without losing the occasion feel.
Sporty
Biker Shorts Graphic Tee
A black graphic tee over biker shorts with mule heels is the warm-day sporty look that works from coffee to casual. The olive baseball cap adds a directional touch.
Other Months in San Francisco
Frequently Asked Questions
What should I wear in San Francisco in September?+
San Francisco in September is warm, with comfortable highs in the 70s. Comfortable layering works well: a jacket or cardigan over lighter pieces covers temperature variation through the day.
How hot is San Francisco in September?+
San Francisco in September averages highs around 73°F. Warm enough for summer-weight clothing during the day, with cooler mornings and evenings.
Does it rain in San Francisco in September?+
September is one of San Francisco's driest months — rainfall is uncommon and you can usually plan outdoor activities without weather concerns.
What to pack for San Francisco in September?+
For San Francisco in September, pack light layers, a versatile jacket, and comfortable shoes. Versatile layering pieces give you flexibility for changing conditions.