Plan your trip
The best time to visit San Francisco is July, August and September, the months with an average high between 17°C and 26°C and the fewest rainy days.
The answer takes the months whose average daily high is between 17°C and 26°C, ranked by fewest rainy days, from NOAA averages for 1991 to 2020 at the San Francisco Downtown (USW00023272) station. Event counts are not part of the rule.
The event counts are what the calendar lists so far. Months further ahead fill in as organisers announce their dates, so a small number in a far month means not announced yet, not a quiet month.
Average high 18°C (64°F), low 10°C (51°F), 66 mm of rain on about 8 days.
547 events listed so far, including Glowfari at Oakland Zoo (6 Nov 2026 to 31 Jan 2027). See November 2026
November in San Francisco. The listings come from the organisers' own pages, and more go in as their dates are confirmed. More in Neighbourhood guides.
Average high 14°C (58°F), low 8°C (47°F), 121 mm of rain on about 12 days.
492 events listed so far, including Winterfest at Salesforce Transit Center (4 to 6 Dec) and Glowfari at Oakland Zoo (6 Nov 2026 to 31 Jan 2027). See December 2026
December in San Francisco. The listings come from the organisers' own pages, and more go in as their dates are confirmed. More in Neighbourhood guides.
Average high 14°C (58°F), low 8°C (47°F), 112 mm of rain on about 11 days.
167 events listed so far, including Glowfari at Oakland Zoo (6 Nov 2026 to 31 Jan 2027). See January 2027
January in San Francisco. The listings come from the organisers' own pages, and more go in as their dates are confirmed. More in Neighbourhood guides.
Average high 16°C (60°F), low 9°C (48°F), 111 mm of rain on about 11 days.
133 events listed so far, including Chinese New Year Parade (20 Feb 2027). See February 2027
February in San Francisco. The listings come from the organisers' own pages, and more go in as their dates are confirmed. More in Neighbourhood guides.
Average high 17°C (62°F), low 9°C (49°F), 80 mm of rain on about 11 days.
125 events listed so far. See March 2027
March in San Francisco. The listings come from the organisers' own pages, and more go in as their dates are confirmed. More in Neighbourhood guides.
Average high 17°C (63°F), low 10°C (50°F), 41 mm of rain on about 7 days.
111 events listed so far. See April 2027
April in San Francisco. The listings come from the organisers' own pages, and more go in as their dates are confirmed. More in Neighbourhood guides.
Average high 18°C (64°F), low 11°C (51°F), 18 mm of rain on about 4 days.
59 events listed so far, including Bay to Breakers (16 May 2027). See May 2027
May in San Francisco. The listings come from the organisers' own pages, and more go in as their dates are confirmed. More in Neighbourhood guides.
Average high 19°C (67°F), low 12°C (53°F), 5 mm of rain on about 2 days.
27 events listed so far, including San Francisco Opera: Pride Concert 2027 (25 Jun 2027). See June 2027
June in San Francisco. The listings come from the organisers' own pages, and more go in as their dates are confirmed. More in Neighbourhood guides.
Average high 19°C (66°F), low 12°C (54°F), 0 mm of rain on about 1 days.
26 events listed so far, including Up Your Alley (25 Jul 2027). See July 2027
July in San Francisco. The listings come from the organisers' own pages, and more go in as their dates are confirmed. More in Neighbourhood guides.
Average high 20°C (68°F), low 13°C (56°F), 2 mm of rain on about 1 days.
25 events listed so far, including Outside Lands (6 Aug to 8 Aug 2027). See August 2027
August in San Francisco. The listings come from the organisers' own pages, and more go in as their dates are confirmed. More in Neighbourhood guides.
Average high 21°C (70°F), low 13°C (56°F), 3 mm of rain on about 1 days.
25 events listed so far, including Folsom Street Fair (26 Sept 2027). See September 2027
September in San Francisco. The listings come from the organisers' own pages, and more go in as their dates are confirmed. More in Neighbourhood guides.
Average high 21°C (70°F), low 12°C (54°F), 24 mm of rain on about 4 days.
24 events listed so far.
October in San Francisco. The listings come from the organisers' own pages, and more go in as their dates are confirmed. More in Neighbourhood guides.
The best time to visit San Francisco is July, August and September, the months with an average high between 17°C and 26°C and the fewest rainy days. The answer takes the months whose average daily high is between 17°C and 26°C, ranked by fewest rainy days, from NOAA averages for 1991 to 2020 at the San Francisco Downtown (USW00023272) station. Event counts are not part of the rule.
Warmest month: September, with an average high of 21°C (70°F). Coolest month: January, with an average high of 14°C (58°F).
Wettest month: December, with about 12 rainy days. Driest month: July, with about 1 rainy day.