








The City by the Bay | The City by the Bay
San Francisco still works for hills, ferries, neighborhoods, food, museums, bay views, and access toward redwoods or wine country. The best days stay compact because the terrain and transit shape everything.
Do not visit San Francisco expecting every worthwhile stop to be close together or easy to improvise. For San Francisco, the practical constraints are part of the itinerary: hours, transport, weather, crowds, and the distance between worthwhile areas. A day in San Francisco should account for distance, heat, parking, and transit before adding more stops. For San Francisco, do not make weak transit carry the whole day. Use a ride or car when it keeps the route sensible.
Current conditions and the practical reference material that helps turn the saved places into a trip.
7-day forecast from Open-Meteo. UV badges flag days when sun protection matters (3 and above is moderate; 8 and above is risk territory for unprotected fair skin within 30 minutes).
About 83% of the year's rain falls in these months. Typical highs around 14°C, lows around 7°C.
About 15mm of rain a month, against 97mm in the wet season.
Public holidays from Nager.Date.
Public-transit operators within 8 km of the city center. Click through to each operator’s site for routes, fares, and tickets.
San Francisco, officially the City and County of San Francisco, is the fourth-most populous city in California and the 17th-most populous in the United States, with a population of 826,079 in 2025. Among U.S. cities with a population of 300,000 or more, San Francisco is ranked first by per capita income, second by population density, and sixth by aggregate income as of 2023. Some 4.6 million residents live in the city's metropolitan statistical area, which is the 13th-largest in the United States. Around 9.2 million live in the San Jose–San Francisco–Oakland combined statistical area, the fifth-largest in the United States.
The links below support the changing or licensed reference material on this page. Personal notes and ordinary geographic facts are not footnoted individually.
Monthly highs, lows, rainfall — long-term averages, NASA POWER.
Operators and modes are aggregated from individual transit-agency GTFS feeds. Route classifications come from each feed’s route type codes.
Maps, image licenses, and the full dataset registry are listed in site credits.