What to Wear in San Francisco in Summer
SF summer runs 58-62F with bay wind all day - bring a packable layer, not a swimsuit. July fog burns off by noon and returns by 4 PM. Four formulas plus the shoe and bag picks, so you pack for actual SF, not for California.
San Francisco in summer is one of the most misread weather situations in American travel. Visitors pack for California sunshine and land in 58-degree fog with 15 mph wind off the bay. The answer is a layering system you can peel and add throughout the day: a light base, a mid-layer that stuffs into your bag, and a wind-resistant shell for the waterfront.
🛒 The San Francisco Summer Outfit Forecast Formula
Temperature feel 58-65F across most neighborhoods. Felt temperature is 5-10F lower near the water due to 15-20 mph bay wind. Sunset and Richmond districts run 5-8F cooler than the Mission on the same afternoon. Key layer A packable wind shell, denim jacket, or fleece zip-up. Fog burns off by midday in warmer neighborhoods but the bay wind stays all day along the waterfront. Base layer Long-sleeve chambray or a soft tee under a hoodie. Short sleeves work in the Mission by 1 PM; they do not work on the Embarcadero at 4 PM. Avoid Shorts and sandals as your only option. A light sundress with no layer over it. Flip-flops on the hills. Footwear Cushioned sneakers for the hills and tourist corridors. A clean low-top leather or canvas for dinner out. Waterproof sole strongly recommended. Tested in July and August across Embarcadero, Mission, Haight, Nob Hill, and SOMA. Fog conditions and waterfront wind chill confirmed across neighborhoods.
The SF Summer Outfit Formulas
The Fog Layer Formula
This is the formula for any SF summer day, regardless of itinerary. Start with a long-sleeve chambray or a lightweight tee as your base. Add a soft zip-up hoodie as your mid-layer. Carry a packable shell or denim jacket as the outer option. Wear jeans or slim chinos, a pair of cushioned sneakers, and keep a beanie in your bag for the afternoon wind off the water.
The Weatherproof Vintage Long Sleeve Chambray earns its place here because of its range. It is a finished enough shirt to wear alone on a warm Mission afternoon and warm enough as a base layer under a jacket on a foggy Haight morning. That 15-degree flexibility is what SF summer demands of every piece you bring.
The Waterfront and Tourist Corridor Formula
The Embarcadero, Ferry Building, Fisherman's Wharf, and Golden Gate Bridge viewpoints all sit in the direct path of bay wind. On these routes, a denim jacket alone is often not enough. You need the second wind-blocking layer: a packable puffer stuffed inside the jacket or a dedicated windbreaker worn on top.
Formula: long-sleeve base plus soft mid-layer plus packable shell or windbreaker plus jeans plus cushioned sneakers plus beanie in the bag. This sounds like a lot. In practice it compresses to a day bag with one extra item inside it, and you will not regret having it.
Outdoor Voices CloudKnit Hoodie
The SF mid-layer. Lightweight enough to tie around your waist at noon on a clear Mission afternoon, warm enough over a tee when the wind picks up at the Ferry Building by 3 PM.
Shop This PickThe Evening Out Formula
SF restaurant culture is excellent and the evenings cool fast in every neighborhood. By 7 PM the temperature has usually settled into the upper 50s. A clean pair of dark jeans with a chambray shirt or thin knit top plus a denim jacket reads well everywhere from Hayes Valley to the Mission to Chinatown. Add a low-profile crossbody bag to keep your hands free on hilly sidewalks.
If the restaurant has outdoor seating - and most SF restaurants run their patios all summer with heaters - a packable layer in your bag is not optional. The wind between tables and on the walk back is real. The puffer that spent the afternoon in your bag becomes useful again at 8 PM without any planning required.
Do:
- Pack at least two layers for every day, regardless of what the weather app says
- Carry something packable - anything that compresses to bag size and comes out when the wind picks up
- Wear closed-toe shoes for the hills; SF sidewalks are steep and uneven in ways that will surprise you
- Check a neighborhood-level forecast, not just the city-wide one. The Mission regularly runs 10F warmer than the Outer Sunset on the same afternoon
- Bring a bag you can zip closed. Tourist corridors around Fisherman's Wharf and Pier 39 have an active pickpocket situation
Don't:
- Rely on "San Francisco" as a single weather data point. The microclimates are real and consequential
- Pack a bag full of shorts, tank tops, and nothing with sleeves
- Wear heels on the hills if you are walking more than two blocks
- Assume August is warm because the rest of California is warm in August
- Leave the beanie at home because it feels silly to pack one for a summer trip
Best Shoes for San Francisco in Summer
Cushioned neutral trainer is the practical first answer for any SF walking day. You will cover more miles than expected, on hills, on uneven pavement, and on tourist-trafficked routes where you stop and start constantly. A shoe with real cushioning and a stable base handles the steep grade streets better than a flat sneaker. Price range: $140-160.
Clean leather or canvas low-top is the step-up option for dinner and evening plans. Allbirds Wool Runners, a simple canvas like the Converse Chuck 70, or a clean white leather like the New Balance 550 work in SF's restaurant environment without looking like activewear after a full day of walking. Price range: $40-120.
Waterproof ankle boot is worth it for early-morning departures or any day that starts under heavy fog. The pavement stays damp well into mid-morning, and a boot with a sealed toe keeps everything dry without requiring you to think about it. Price range: $80-130.
Avoid: open-toed sandals as your primary walking shoe. The hills, the pavement gaps, and the grit that the bay wind kicks up along the Embarcadero all argue against them. Flip-flops on any street with a meaningful grade are a slip risk.
Brooks Ghost 18 Road Running Shoes
Neutral cushioning built for pavement miles - exactly what SF hills require. Works with jeans and chinos without reading as activewear at dinner.
Shop This PickMistakes People Make Packing for SF in Summer
- Packing for California weather instead of SF weather. Los Angeles in July averages 85F and sunny. San Francisco in July averages 62F with fog and wind. Same coast, completely different pack list. The mistake is treating "California summer" as one thing.
- Checking the morning forecast and calling it done. SF's temperature swings 10-15F within a neighborhood by early afternoon, and the gap between neighborhoods is just as wide. The Haight-Ashbury is often sunlit by noon while the Outer Richmond sits under fog. A neighborhood-level forecast changes your layering decision for the day.
- Skipping the beanie because it is July. A light cuffed beanie is one of the most-purchased items at shops near the Ferry Building and Pier 39, because visitors arrive without one and regret it by 3 PM. It weighs nothing. Pack one before you leave.
- Wearing flat-soled shoes for a full walking day. The grade on streets like Filbert, Lombard, and the steeper Castro blocks is more aggressive than it looks in photographs. A shoe with grip and structure is not optional on a day that covers multiple neighborhoods. The risk is higher for smooth-soled dress shoes and particularly for heels.
Why This Approach Works
San Francisco's summer fog is the product of a specific weather pattern: the Central Valley heats to 95-100F in summer, which creates a pressure difference that draws cool, moist Pacific air in through the Golden Gate. That marine layer settles over the city each morning, burns off in the warmer eastern neighborhoods by midday, and returns each late afternoon as inland heat peaks.
The practical result is a daily temperature arc: 55-58F at 8 AM, 62-65F in warmer spots by 2 PM, and back to 58F by 7 PM. A single outfit cannot cover that range without a layering system. The chambray shirt works as a base because the tightly woven fabric resists light wind and stays comfortable at 65F without feeling heavy. A brushed-knit hoodie or a packable shell handles the 10F swing. Together, the system covers the full SF summer day without a wardrobe change and without overpacking.
The wind is what most people underestimate. At 15-20 mph, the bay wind makes 60F feel like 50F near the Embarcadero. A jacket that is overkill in most 60F situations is appropriate on the waterfront because the wind exposure is consistent and direct. That is why the packable puffer earns its place in your bag rather than left at the hotel.
⭐ Claire's Pick
Amazon Essentials Packable Puffer Jacket
Under $25 and compresses to the size of a paperback. I pull this out at the Ferry Building and stuff it back in my bag by the time I get to the Mission. It is the single most useful thing you can carry in SF in summer, and it costs less than a round of drinks at the airport.
Shop This PickWhat temperature is San Francisco in July and August? July and August average 58-65F across most neighborhoods. Coastal and western neighborhoods - Sunset, Richmond, Ocean Beach - run on the lower end, 55-62F. Warmer interior neighborhoods like the Mission and SOMA can reach 68-70F on afternoons when the fog has fully cleared. Bay wind keeps the felt temperature 5-10F lower near the Embarcadero and waterfront.
What should I pack for a summer trip to San Francisco? Plan for cool fall weather, not California summer. The core of the pack list: two or three long-sleeve shirts or chambray shirts, one hoodie or soft zip-up, one packable jacket or windbreaker, two pairs of jeans or slim trousers, one pair of good walking shoes, and a light beanie. Shorts are worth bringing for warm Mission afternoons but should not be your primary legwear plan.
Is San Francisco cold in summer compared to other US cities? It is the coolest major US city in July and August by a significant margin. Chicago averages 73F in July. New York averages 76F. Los Angeles averages 75F. San Francisco averages 63F with marine layer and bay wind. It is not cold in an absolute sense, but it is considerably cooler than every comparable US city in summer.
Why does San Francisco get fog in summer? The Central Valley heats to 95-100F in summer, which creates a pressure difference that draws cool Pacific air in through the Golden Gate. That marine layer drops coastal and western neighborhood temperatures significantly. The fog burns off in the warmer inland-facing neighborhoods by noon, but the cooling cycle repeats each afternoon as the inland heat peaks and the pressure gradient pulls in fresh marine air.
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About the Author: Claire Maddox is a fashion journalist covering function meets style for regional magazines and outdoor lifestyle publications. Read more from Claire.
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