Best time to visit San Francisco for good weather
When is the best weather in San Francisco? Monthly breakdown of temperature, rainfall, and sunshine hours — ranked by what actually matters for your trip.
Best month
October
Warmest weather, two great free festivals, Fleet Week air show — October is the answer.
↑October brings Fleet Week (typically the second weekend), when the US Navy's Blue Angels fly formation demonstrations over the bay that are visible from virtually every north-facing vantage point in the city. The show is free to watch from Crissy Field, Fort Mason, Marina Green, and dozens of rooftops and hills. It's one of the few genuinely world-class free spectacles available in any major city — an F/A-18 in full afterburner over the Golden Gate Bridge is difficult to forget.
↑Hardly Strictly Bluegrass (first weekend of October, Golden Gate Park) is the other great October event — a free, three-day, multi-stage music festival that draws 750,000 people over the weekend. The late Warren Hellman's gift to the city is fully funded in perpetuity: no ticket required, no commercial sponsorship wall, just an extraordinary lineup (Steve Earle, Emmylou Harris, Hazel Miller) spread across six stages in the park. It remains one of the world's great music events that most people outside the Bay Area have never heard of.
↑October weather rivals September: 20°C average highs, low fog frequency, and the first very occasional rain shower that refreshes the air without causing disruption. The long clear evenings give the outdoor patios and rooftop bars of the Mission and Castro an atmosphere that summer's fog can't match.
All months ranked — Good weather
Best match
Warmest weather, two great free festivals, Fleet Week air show — October is the answer.
#1 for good weather
Best match
San Francisco's best-kept secret — warmest, clearest month, and crowds just starting to thin.
#2 for good weather
Best match
Clearest skies of the year, warmest days before summer fog — the sweet spot.
#3 for good weather
Strong option
Spring at its best — low rainfall, comfortable warmth, and the hills still lush green.
#4 for good weather
Strong option
Rain tailing off, crowds still absent — the first genuinely pleasant month of the year.
#5 for good weather
Strong option
Prices drop sharply after Thanksgiving, weather still acceptable — underrated autumn value.
#6 for good weather
Strong option
Quietest streets, best prices, Lunar New Year if dates align — worth the grey skies.
#7 for good weather
Strong option
Cheapest hotels of the year, nearly tourist-free — but January rain is no myth.
#8 for good weather
Strong option
SF Pride transforms the city — but Karl the Fog arrives and tourist prices peak.
#9 for good weather
Worth considering
Grey and wet, but Christmas lights warm Union Square and hotel rates stay reasonable.
#10 for good weather
Worth considering
Outside Lands weekend is extraordinary; otherwise peak-season prices with lingering fog.
#11 for good weather
Worth considering
Peak tourism, peak prices, and peak fog — the month most visitors regret choosing.
#12 for good weather