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Half Moon Bay October Weather

Averages and records for weather in Half Moon Bay, California in the month of October.

Typical Half Moon Bay October Weather 1991–2020
Average daily high	66.4 °F
Average daily low	48.0 °F
Average monthly precipitation	1.3 inches
Average monthly snow	none
Daily chance of precipitation	24.3%
Daily chance of snow	0%

Half Moon Bay October Weather Records 1939–2024
Highest temperature	94 °F	October 27, 2003
Lowest temperature	33 °F	October 29, 1946
Highest daily low	67 °F	October 25, 2019
Lowest daily high	52 °F	October 29, 1951
Hottest average high temperature	71.4 °F	1965
Coldest average high temperature	61.3 °F	1949
Most daily precipitation	4.9 inches	October 13, 1962
Most monthly precipitation	11.0 inches	1962
Most daily snow	none	-
Most monthly snow	none	-

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	66.7	49.1	83	37
October 2	66.7	49.0	88	35
October 3	66.8	48.9	89	36
October 4	66.7	48.8	87	40
October 5	66.6	48.8	90	37
October 6	66.6	48.7	87	35
October 7	66.5	48.6	89	36
October 8	66.5	48.5	90	38
October 9	66.6	48.5	89	37
October 10	66.6	48.4	86	38
October 11	66.6	48.4	86	36
October 12	66.6	48.3	87	36
October 13	66.6	48.2	88	35
October 14	66.6	48.1	88	37
October 15	66.6	48.0	90	38
October 16	66.4	47.9	92	36
October 17	66.3	47.8	85	38
October 18	66.4	47.7	82	37
October 19	66.3	47.5	82	36
October 20	66.3	47.4	91	35
October 21	66.2	47.3	87	36
October 22	66.1	47.2	91	36
October 23	65.9	47.1	88	37
October 24	65.9	47.0	92	35
October 25	65.8	47.0	92	34
October 26	65.7	46.9	94	36
October 27	65.5	46.8	94	37
October 28	65.3	46.7	85	37
October 29	65.1	46.5	84	33
October 30	65.0	46.4	86	36
October 31	64.8	46.3	85	39

Weather Station Details

Years	Station	Coordinates
1939–2024	Half Moon Bay	location