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San Francisco across the bay, with the Transamerica Pyramid, Salesforce Tower and Bay Bridge
United States · Destination guide
San Francisco, United States
Best seasonApr–Sep
CurrencyUnited States dollar (USD)
Plug typesA, B · 120 VCheck adapter →
Time zoneAmerica/Los_Angeles (UTC-7)
Emergency number911
Destination guide

A first look at San Francisco

Give one day to the Embarcadero and a Golden Gate view, then choose gardens or an available Alcatraz visit for the second. Keeping these outings separate leaves space for hills, transport and a proper meal.

Explore our San Francisco guides

Weather guide

Weather in San Francisco

Carry removable warmth and a windproof layer throughout the year. The airport’s 1991–2020 normals offer a seasonal baseline, but ocean-facing neighbourhoods, fog and exposed boat decks can feel cooler than this station south of the city.

20–24°C

Mild afternoons; fog and exposed coastal wind can feel cool.

October · representative month, not a forecast
Evenings
10–14°C
Rain
Showers possible
Daylight
Use daylight for park paths and viewpoints, with a layer for later returns.
See weather details →

What this means for packing

October can mix mild afternoons with cooler waterfront evenings. Pack a shirt, removable sweater and a shell that can handle rain as the wetter season approaches. Wear shoes with grip and confirm Alcatraz access before planning an island outing around late-October dock work.

Choosing a season

The best-season badge suggests months for general sightseeing, using the typical daytime temperatures and rainfall in our monthly guides. Beach holidays, festivals, winter sports and northern lights trips may suit different dates.

Climate methodology

NOAA NCEI San Francisco International Airport station USW00023234, 1991–2020 normals: mean daily maximum 72.3°F (22.4°C), minimum 53.4°F (11.9°C); monthly precipitation 0.79 inches (20.1 mm). Clothing bands convert to Celsius, round and expand 2°C each way; they are outfit prompts, not forecast limits. The airport is south of the city and is not a forecast for foggy ocean-facing neighbourhoods. Check actual dates and local conditions.

Reviewed 2026-10-13

NOAA NCEI: San Francisco airport 1991–2020 monthly normals · National Park Service: bay fog and wind · SFMTA: current transport and fares

About the climate in San Francisco

Carry removable warmth and a windproof layer throughout the year. The airport’s 1991–2020 normals offer a seasonal baseline, but ocean-facing neighbourhoods, fog and exposed boat decks can feel cooler than this station south of the city.

Packing guide

What to wear in San Francisco in August.

An example packing list for San Francisco in August

Use this as a starting point and choose what suits your plans. Packtricia tailors your list and quantities to your trip length, weather and preferences.

Clothing

  • Underwear
  • Bras (if worn)
  • Socks
  • Sleepwear
  • Breathable shirt
  • Comfortable trousers
  • Removable sweater or fleece
  • Packable windproof jacket
  • Broken-in walking shoes with grip
  • Sun hat (for longer clear-weather outings)

Toiletries

  • Toothbrush
  • Toothpaste
  • Shampoo
  • Conditioner
  • Body wash or soap
  • Deodorant
  • Skincare products
  • Sunscreen
  • Hairbrush or comb
  • Shaving supplies (if used)
  • Menstrual products (if needed)
  • Contact lens solution (if used)

Essentials

  • Passport or accepted travel ID
  • Travel tickets and booking confirmations
  • Wallet and payment cards
  • Phone
  • Charging cable and charger
  • Travel adapter (if needed)
  • Medication (if needed)
  • Glasses or contact lenses (if used)
  • Refillable water bottle
  • Day bag
  • Power bank (if needed)
  • Water-resistant pouch
  • Compact umbrella (if preferred)
Monthly weather and packing notes

August still rewards a layered city outfit. A breathable top and trousers work for the Ferry Building, with a sweater and windproof layer ready for a boat deck or bridge view. Keep walking shoes comfortable for hills and save an outer layer for evening.

Daytime
21–25°C
Evenings
12–16°C
Rain
Usually dry; coastal fog possible
Daylight
Use daylight for park paths and viewpoints, with a layer for later returns.
Packing style
Removable warmth, wind protection and comfortable walking shoes

NOAA NCEI San Francisco International Airport station USW00023234, 1991–2020 normals: mean daily maximum 73.4°F (23.0°C), minimum 56.4°F (13.6°C); monthly precipitation 0.04 inches (1.0 mm). Clothing bands convert to Celsius, round and expand 2°C each way; they are outfit prompts, not forecast limits. The airport is south of the city and is not a forecast for foggy ocean-facing neighbourhoods. Check actual dates and local conditions.

Outfit ideas for your outings

August around the Ferry Building

  • Breathable shirt
  • Comfortable trousers
  • Removable sweater
  • Walking shoes with grip
  • Windproof outer layer

Golden Gate viewpoint or bay deck

  • Shirt
  • Warm knit or fleece
  • Windproof outer layer
  • Comfortable long trousers
  • Secure walking shoes

Golden Gate Park and an indoor visit

  • Breathable top
  • Removable knit
  • Comfortable trousers or skirt
  • Walking shoes
  • Day bag for spare layers

What to leave behind

  • Only beach clothes: coastal fog and wind can make a bay outing cool even in summer.
  • Stiff unworn shoes: hills, transit steps and park paths call for footwear tested before travel.

Reviewed 2026-10-13

NOAA NCEI: San Francisco airport 1991–2020 monthly normals · National Park Service: bay fog and wind · SFMTA: current transport and fares

Transport guide

Getting around San Francisco

Use Citymapper to compare San Francisco journeys and check SFMTA’s current fare guidance before paying. MuniMobile no longer sells single-ride tickets, while some passes remain available during its retirement; check Clipper and other current payment options for the actual service.

Check the operator’s current service notices and ticket instructions before travelling.

Practical essentials

Language and calling code

Language
English
Calling code
+1
Useful essentials for San Francisco
  • Broken-in walking shoes
  • Removable sweater or fleece
  • Windproof outer layer
  • Small secure day bag
  • Saved Muni route and booking confirmations
  • US socket adapter if needed

Do you need a visa?

Check travel-document and visa requirements for your passport, destination and transit stops.

Check your requirements on TravelDoc

Use the checker as a starting point, then confirm requirements with the relevant government or embassy before travelling.

Things to do in San Francisco

Find a guided walk or an attraction visit to fit around your plans in San Francisco.

Stay connected

Mobile data for your trip. Check what your current plan includes for roaming. If you need another option for maps, messages and booking details, compare NXTL eSIM coverage and rates. Check that your phone supports eSIM and is unlocked, and check coverage for every stop. Download important maps and confirmations for offline use too.

Photo: David McElwee / Pexels