Can't find what you're looking for? We're happy to answer your questions.

Half Moon Bay Weather in 2020

Historical record of Half Moon Bay, California weather for the year 2020 based on NOAA data.
Jump to month:
2020 Half Moon Bay Weather Extremes
Highest temperature 92 °F October 16
Lowest temperature 30 °F November 9
Highest daily low 60 °F September 24
Lowest daily high 53 °F January 17
Most daily precipitation 1.4 inches January 16
Total annual precipitation 11.5 inches -
January 2020 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
January 1
58 44 0.00
January 2
59 43 0.00
January 3
59 38 0.00
January 4
58 45 0.02
January 5
58 36 0.00
January 6
61 38 0.00
January 7
59 38 0.00
January 8
56 43 0.04
January 9
55 47 0.35
January 10
54 37 0.00
January 11
55 45 0.17
January 12
56 35 0.02
January 13
55 40 0.01
January 14
55 45 0.30
January 15
54 34 0.00
January 16
53 43 1.45
January 17
53 35 0.24
January 18
55 43 0.00
January 19
58 47 0.00
January 20
59 47 0.00
January 21
58 45 0.00
January 22
58 51 0.08
January 23
61 49 0.00
January 24
58 42 0.00
January 25
60 50 0.00
January 26
64 54 0.35
January 27
58 41 0.00
January 28
58 46 0.10
January 29
57 42 0.00
January 30
58 47 0.03
January 31
62 42 0.00
February 2020 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
February 1
65 44 0.00
February 2
60 47 0.00
February 3
55 32 0.00
February 4
56 44 0.00
February 5
57 32 0.00
February 6
57 40 0.00
February 7
57 40 0.00
February 8
56 42 0.00
February 9
63 34 0.00
February 10
68 48 0.00
February 11
71 38 0.00
February 12
65 36 0.00
February 13
57 40 0.00
February 14
54 48 0.00
February 15
55 37 0.00
February 16
57 44 0.00
February 17
61 41 0.00
February 18
62 35 0.00
February 19
59 38 0.00
February 20
56 37 0.00
February 21
70 41 0.00
February 22
65 48 0.00
February 23
56 50 0.00
February 24
58 37 0.00
February 25
72 39 0.00
February 26
65 39 0.00
February 27
68 39 0.00
February 28
60 39 0.00
February 29
55 42 0.00
March 2020 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
March 1
58 40 0.00
March 2
63 43 0.00
March 3
63 38 0.00
March 4
62 38 0.00
March 5
62 47 0.00
March 6
59 51 0.00
March 7
57 48 0.49
March 8
57 37 0.03
March 9
66 44 0.00
March 10
69 46 0.00
March 11
64 50 0.00
March 12
61 46 0.00
March 13
59 48 0.00
March 14
59 49 0.44
March 15
55 47 0.16
March 16
55 48 0.22
March 17
54 39 0.18
March 18
55 41 0.07
March 19
58 42 0.01
March 20
58 39 0.00
March 21
61 40 0.00
March 22
67 40 0.16
March 23
57 41 0.17
March 24
56 44 0.13
March 25
56 40 0.20
March 26
56 36 0.00
March 27
57 50 0.00
March 28
58 50 0.16
March 29
62 50 0.10
March 30
61 48 0.00
March 31
61 45 0.00
April 2020 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
April 1
60 49 0.00
April 2
58 36 0.00
April 3
58 43 0.00
April 4
57 48 0.02
April 5
56 50 0.71
April 6
55 40 0.52
April 7
60 36 0.12
April 8
61 48 0.00
April 9
60 51 0.04
April 10
60 50 0.00
April 11
60 51 0.00
April 12
56 50 0.02
April 13
58 50 0.00
April 14
62 41 0.00
April 15
68 40 0.00
April 16
59 51 0.02
April 17
60 52 0.00
April 18
62 53 0.00
April 19
63 42 0.00
April 20
62 51 0.00
April 21
60 53 0.00
April 22
65 47 0.00
April 23
63 54 0.00
April 24
65 43 0.00
April 25
64 46 0.00
April 26
62 51 0.00
April 27
61 44 0.00
April 28
63 52 0.00
April 29
61 52 0.00
April 30
61 52 0.01
May 2020 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
May 1
61 44 0.00
May 2
62 51 0.01
May 3
63 41 0.00
May 4
62 39 0.00
May 5
64 39 0.00
May 6
62 44 0.00
May 7
66 41 0.00
May 8
64 42 0.00
May 9
61 49 0.00
May 10
62 53 0.00
May 11
64 48 0.00
May 12
64 54 0.26
May 13
63 46 0.01
May 14
66 53 0.00
May 15
64 55 0.00
May 16
64 49 0.00
May 17
67 57 0.18
May 18
66 54 0.20
May 19
66 52 0.00
May 20
64 55 0.00
May 21
64 54 0.00
May 22
64 52 0.00
May 23
62 42 0.00
May 24
64 43 0.00
May 25
66 43 0.00
May 26
66 48 0.00
May 27
66 49 0.00
May 28
62 52 0.00
May 29
65 53 0.00
May 30
66 57 0.02
May 31
65 51 0.00
June 2020 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
June 1
63 53 0.00
June 2
66 48 0.00
June 3
70 49 0.00
June 4
70 46 0.00
June 5
64 52 0.00
June 6
65 55 0.00
June 7
64 53 0.00
June 8
68 42 0.00
June 9
68 42 0.00
June 10
69 48 0.00
June 11
63 54 0.00
June 12
65 55 0.00
June 13
65 54 0.00
June 14
66 54 0.00
June 15
65 49 0.00
June 16
65 54 0.00
June 17
68 43 0.00
June 18
68 43 0.00
June 19
67 53 0.00
June 20
63 54 0.00
June 21
61 55 0.04
June 22
64 55 0.00
June 23
65 55 0.00
June 24
64 53 0.01
June 25
63 54 0.03
June 26
63 55 0.01
June 27
63 55 0.01
June 28
63 55 0.00
June 29
66 45 0.00
June 30
66 46 0.00
July 2020 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
July 1
64 54 0.00
July 2
65 54 0.00
July 3
65 55 0.00
July 4
66 46 0.00
July 5
66 44 0.00
July 6
65 48 0.00
July 7
65 53 0.00
July 8
63 52 0.00
July 9
63 54 0.00
July 10
64 48 0.00
July 11
63 48 0.00
July 12
64 43 0.00
July 13
65 55 0.00
July 14
65 55 0.00
July 15
65 56 0.00
July 16
65 56 0.00
July 17
66 56 0.00
July 18
67 57 0.00
July 19
67 56 0.00
July 20
65 56 0.01
July 21
64 55 0.00
July 22
68 55 0.00
July 23
68 55 0.02
July 24
63 55 0.00
July 25
67 56 0.00
July 26
67 56 0.00
July 27
65 56 0.00
July 28
64 55 0.00
July 29
64 54 0.00
July 30
63 56 0.00
July 31
64 55 0.00
August 2020 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
August 1
65 56 0.01
August 2
65 56 0.01
August 3
65 49 0.00
August 4
65 56 0.08
August 5
64 54 0.01
August 6
64 56 0.00
August 7
66 57 0.00
August 8
67 55 0.00
August 9
64 56 0.00
August 10
64 55 0.00
August 11
66 56 0.00
August 12
67 59 0.00
August 13
67 46 0.00
August 14
82 58 0.00
August 15
82 56 0.00
August 16
82 60 0.09
August 17
71 59 0.01
August 18
66 55 0.00
August 19
66 50 0.00
August 20
64 51 0.00
August 21
66 58 0.01
August 22
69 56 0.01
August 23
66 52 0.00
August 24
64 55 0.00
August 25
64 56 0.03
August 26
64 52 0.02
August 27
61 55 0.01
August 28
61 54 0.00
August 29
62 54 0.01
August 30
62 55 0.00
August 31
63 55 0.00
September 2020 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
September 1
65 56 0.00
September 2
65 56 0.00
September 3
65 57 0.00
September 4
65 52 0.00
September 5
68 47 0.00
September 6
71 55 0.00
September 7
83 55 0.00
September 8
68 51 0.00
September 9
64 56 0.00
September 10
62 57 0.00
September 11
62 47 0.01
September 12
60 53 0.02
September 13
60 53 0.00
September 14
63 56 0.00
September 15
67 49 0.00
September 16
72 59 0.00
September 17
71 59 0.01
September 18
66 55 0.00
September 19
66 60 0.00
September 20
66 52 0.00
September 21
63 55 0.00
September 22
65 59 0.00
September 23
70 49 0.00
September 24
70 60 0.00
September 25
66 59 0.00
September 26
69 52 0.00
September 27
75 50 0.00
September 28
80 53 0.00
September 29
63 52 0.00
September 30
68 55 0.00
October 2020 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
October 1
71 51 0.00
October 2
70 47 0.00
October 3
65 52 0.00
October 4
63 52 0.00
October 5
61 50 0.00
October 6
58 51 0.00
October 7
62 49 0.00
October 8
63 57 0.00
October 9
63 56 0.01
October 10
65 51 0.02
October 11
71 53 0.01
October 12
70 46 0.00
October 13
71 45 0.00
October 14
72 48 0.00
October 15
90 49 0.00
October 16
92 53 0.00
October 17
74 49 0.00
October 18
74 55 0.00
October 19
60 43 0.00
October 20
59 46 0.00
October 21
63 45 0.00
October 22
62 47 0.00
October 23
64 43 0.01
October 24
64 43 0.00
October 25
64 54 0.00
October 26
74 46 0.00
October 27
71 43 0.00
October 28
65 38 0.00
October 29
62 37 0.00
October 30
n/a 41 0.00
October 31
58 47 0.00
November 2020 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
November 1
61 45 0.00
November 2
60 46 0.01
November 3
59 48 0.00
November 4
65 42 0.00
November 5
69 46 0.00
November 6
64 48 0.00
November 7
58 41 0.00
November 8
56 43 0.00
November 9
56 30 0.00
November 10
56 32 0.00
November 11
59 50 0.00
November 12
58 38 0.00
November 13
58 36 0.00
November 14
59 39 0.08
November 15
64 35 0.00
November 16
71 45 0.00
November 17
70 48 0.38
November 18
60 55 0.20
November 19
59 42 0.00
November 20
65 43 0.00
November 21
65 41 0.00
November 22
65 35 0.00
November 23
57 43 0.04
November 24
56 38 0.00
November 25
57 48 0.00
November 26
63 34 0.00
November 27
64 34 0.00
November 28
64 31 0.00
November 29
64 35 0.00
November 30
57 33 0.00
December 2020 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
December 1
65 36 0.00
December 2
65 35 0.00
December 3
62 38 0.00
December 4
68 37 0.00
December 5
57 34 0.00
December 6
56 39 0.00
December 7
72 32 0.00
December 8
72 56 0.00
December 9
70 40 0.00
December 10
65 44 0.00
December 11
55 45 0.00
December 12
57 50 0.90
December 13
57 49 0.60
December 14
56 40 0.01
December 15
55 38 0.00
December 16
55 38 0.00
December 17
58 41 0.46
December 18
56 36 0.00
December 19
61 34 0.01
December 20
63 42 0.00
December 21
64 45 0.00
December 22
60 40 0.00
December 23
60 39 0.00
December 24
64 48 0.00
December 25
61 42 0.04
December 26
57 45 0.20
December 27
55 40 0.00
December 28
56 45 0.03
December 29
57 35 0.01
December 30
55 33 0.00
December 31
56 41 0.10
Weather Station Details
Years Station Coordinates
1939–2022 Half Moon Bay location