Destinations › San FranciscoSan Francisco in SeptemberHigh / Low21° / 14°Rain3 mmRainy days1 / 30Index · #4/1298/100Compare hotels in San FranciscoCompare flights to San FranciscoAd · Booking links on this page are affiliate links. farepage earns a commission at no extra cost to you.Public holidays · September 202609/07Labor Day · Labour DayMonthJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember← AugustOctober →