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San Francisco October Weather

Averages and records for weather in San Francisco, California in the month of October.

Typical San Francisco October Weather 1991–2020
Average daily high	70.4 °F
Average daily low	54.7 °F
Average monthly precipitation	0.9 inches
Daily chance of precipitation	11.3%

San Francisco October Weather Records 1921–2024
Highest temperature	102 °F	October 5, 1987
Lowest temperature	43 °F	October 31, 1935
Highest daily low	69 °F	October 16, 2020
Lowest daily high	53 °F	October 30, 1971
Hottest average high temperature	75.8 °F	1992
Coldest average high temperature	64.3 °F	1970
Most daily precipitation	4.0 inches	October 24, 2021
Most monthly precipitation	7.0 inches	2021

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
October 1	71.5	55.5	97	49
October 2	71.6	55.5	96	49
October 3	71.6	55.4	97	50
October 4	71.4	55.3	100	50
October 5	71.3	55.2	102	49
October 6	71.2	55.2	94	51
October 7	71.2	55.1	98	48
October 8	71.1	55.1	99	51
October 9	71.1	55.0	93	50
October 10	71.0	55.0	96	50
October 11	70.9	55.0	90	49
October 12	70.8	54.9	91	48
October 13	70.8	54.9	93	48
October 14	70.7	54.9	93	48
October 15	70.6	54.8	94	49
October 16	70.4	54.7	92	50
October 17	70.3	54.6	93	47
October 18	70.3	54.5	88	47
October 19	70.3	54.4	90	47
October 20	70.2	54.3	89	45
October 21	70.1	54.2	89	49
October 22	69.8	54.1	90	47
October 23	69.6	54.0	88	45
October 24	69.4	53.9	90	48
October 25	69.2	53.8	91	48
October 26	69.0	53.7	92	49
October 27	68.7	53.6	94	47
October 28	68.4	53.4	92	46
October 29	68.2	53.3	84	46
October 30	68.0	53.2	84	46
October 31	67.8	53.0	83	43

Weather Station Details

Years	Station	Coordinates
1921–2024	Downtown San Francisco	location