San Francisco

    United States

    A foggy, hilly peninsula celebrated for its Victorian architecture, historic cable cars, and culinary innovation.

    Warmest month is September at 24°C on average. Coolest is December at 14°C. Driest reading falls in June with 0 rain days.

    Costs and travel essentials

    • CoffeeCurated by Hugo
      $5.50 (~$5.50)
      Destination estimate, 2026-07-11. SF premium over US baseline. Not a surveyed local price.
    • BeerCurated by Hugo
      $8.50 (~$8.50)
      Destination estimate, 2026-07-11. SF premium over US baseline. Not a surveyed local price.
    • Flight timeMethodology
      11h 30m from London Heathrow
      Great-circle plus routing overhead.
    • Flight CO2eDEFRA 2024 factors
      3,284 kg return from London Heathrow
      DEFRA 2024 economy factors, includes radiative forcing.
    • FCDO advisorygov.uk, snapshot compiled 2026-07-11
      No specific FCDO warnings against travel.
      Check the latest FCDO advice before booking.
    • Tap waterCDC / WHO guidance
      Tap water is generally safe to drink.
    MonthAvg highDaily spreadRain days
    January15°5°C9
    February16°8°C7
    March17°7°C10
    April18°8°C4
    May20°8°C1
    June22°8°C0
    July22°6°C0
    August23°7°C0
    September24°10°C0
    October22°10°C2
    November18°6°C6
    December14°6°C8

    What to do

    • Cycle across the Golden Gate Bridge
    • Tour Alcatraz Island
    • Eat clam chowder at Fisherman's Wharf
    • Ride a historic cable car

    How we know this

    Values are the average of the last ten calendar years of daily readings from Visual Crossing, snapped to the destination cluster. Daily spread is the width between the 10th and 90th percentiles of daily highs, not a forecast error margin. Rain days count any day with at least 1 mm of precipitation.