Half Moon Bay, California
Climate

Half Moon Bay, California

Section Title: Climate
Table Section Text: None

Climate data for Half Moon Bay, California

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year

Record high °F (°C)	76 (24)	78 (26)	86 (30)	87 (31)	96 (36)	94 (34)	84 (29)	94 (34)	94 (34)	94 (34)	87 (31)	79 (26)	96 (36)

Average high °F (°C)	58.4 (14.7)	59.3 (15.2)	59.8 (15.4)	60.7 (15.9)	61.7 (16.5)	63.4 (17.4)	64.2 (17.9)	65.1 (18.4)	66.8 (19.3)	65.8 (18.8)	62.7 (17.1)	58.9 (14.9)	62.2 (16.8)

Daily mean °F (°C)	50.6 (10.3)	51.4 (10.8)	51.8 (11.0)	52.6 (11.4)	54.6 (12.6)	56.6 (13.7)	58.0 (14.4)	58.9 (14.9)	59.1 (15.1)	57.1 (13.9)	54.0 (12.2)	51.1 (10.6)	54.7 (12.6)

Average low °F (°C)	42.9 (6.1)	43.5 (6.4)	43.8 (6.6)	44.6 (7.0)	47.4 (8.6)	49.8 (9.9)	51.9 (11.1)	52.7 (11.5)	51.2 (10.7)	48.3 (9.1)	45.4 (7.4)	43.3 (6.3)	47.1 (8.4)

Record low °F (°C)	27 (−3)	22 (−6)	28 (−2)	31 (−1)	33 (1)	36 (2)	40 (4)	41 (5)	35 (2)	33 (1)	30 (−1)	18 (−8)	18 (−8)

Average precipitation inches (mm)	5.15 (131)	4.49 (114)	3.83 (97)	1.88 (48)	0.76 (19)	0.30 (7.6)	0.12 (3.0)	0.19 (4.8)	0.35 (8.9)	1.59 (40)	2.99 (76)	4.52 (115)	26.17 (665)

Average precipitation days (≥ 0.01 in)	12	11	11	7	5	3	4	4	4	6	9	11	86

Source: Western Regional Climate Center (normals and extremes 1939–present)

Sentence(s)

January is the month with an average high of 58.4 °F (14.7 °C) and an average low of 42.9 °F (6.1 °C) in Half Moon Bay.

final_sentence: January is the month with an average high of 58.4 °F (14.7 °C) and an average low of 42.9 °F (6.1 °C) in Half Moon Bay.