Average October Temperature in Half Moon Bay by Year

This page contains a list of the average monthly high and low temperatures in Half Moon Bay, California for the month of October each year between 1939 and 2023. It is based on NOAA data.

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What Was the Hottest October Ever in Half Moon Bay?

1983 was the warmest October in the history of Half Moon Bay, California. The average daily high temperature was 70.2 °F, and the average low was 52.2 °F.

What Was the Coldest October Ever in Half Moon Bay?

1971 was the coolest October in the history of Half Moon Bay, California. The average daily high temperature was 62.8 °F, and the average low was 42.8 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	21	67.1	49.1
2022	57	62.8	49.8
2021	54	65.5	47.3
2020	29	67.3	48.0
2019	66	68.9	43.2
2018	30	66.2	48.6
2017	35	68.7	45.6
2016	24	66.7	49.3
2015	8	67.5	51.5
2014	3	69.8	50.8
2013	71	65.0	45.9
2012	26	66.4	49.3
2011	12	67.9	50.1
2010	59	64.4	48.1
2009	46	65.4	48.2
2008	63	67.3	45.0
2007	73	65.0	45.6
2006	43	67.3	46.4
2005	80	63.5	45.3
2004	58	65.6	46.9
2003	34	67.5	46.9
2001	22	66.5	49.7
2000	47	64.3	49.3
1999	48	65.3	48.3
1998	70	64.6	46.7
1997	14	67.5	50.2
1996	60	64.7	47.7
1995	17	66.8	49.8
1994	44	65.3	48.4
1992	11	67.1	51.5
1991	53	64.8	48.2
1990	78	64.2	45.6
1988	51	63.6	49.5
1987	15	66.5	50.6
1986	39	64.7	49.3
1985	41	64.8	49.0
1984	68	64.3	47.3
1983	1	70.2	52.2
1982	20	67.7	48.6
1981	72	63.6	47.2
1980	67	64.5	47.4
1979	6	67.9	51.5
1978	65	64.6	47.5
1977	61	64.0	48.3
1976	18	67.8	48.8
1975	79	62.0	47.3
1974	16	66.7	49.9
1973	31	65.3	49.3
1972	5	67.6	52.5
1971	82	62.8	42.8
1970	56	66.0	46.6
1969	69	66.2	45.3
1968	62	63.5	48.7
1967	4	70.1	50.2
1966	13	70.6	47.4
1965	2	71.4	49.4
1964	23	66.2	49.9
1963	9	67.5	51.5
1962	37	65.1	49.0
1961	19	66.9	49.7
1960	49	65.6	47.8
1959	7	68.7	50.4
1958	40	64.8	49.0
1957	10	67.0	51.8
1956	38	65.3	48.8
1955	75	64.0	46.1
1954	52	66.7	46.4
1953	55	65.8	46.9
1952	32	63.6	50.9
1951	64	64.8	47.4
1950	36	66.8	47.4
1949	81	61.3	44.9
1948	28	67.0	48.4
1947	27	65.8	49.9
1946	74	65.5	44.7
1945	42	64.2	49.6
1944	45	64.5	49.1
1943	50	65.2	48.1
1942	76	63.9	46.2
1941	77	65.2	44.8
1940	33	66.1	48.3
1939	25	68.3	47.6

Weather Station Details

Years	Station	Coordinates
1939–2024	Half Moon Bay	location