Santa Cruz Temperatures: Averages by Month





The numbers here tell you how hot and cold the weather usually is in Santa Cruz, California during each month of the year.

The average high and low temperatures are listed below for Santa Cruz, in both degrees Fahrenheit and Celsius.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 70, 80 or 90 °F monthly and annually in Santa Cruz, scroll down farther. There are also counts of days with cool weather.

The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.

10-year temperature averages for Santa Cruz, 2010 to 2019
High °F Low °F   High °C Low °C
63 42 January 17 6
65 42 February 18 6
68 44 March 20 7
71 47 April 22 8
72 49 May 22 10
75 52 June 24 11
75 55 July 24 13
76 55 August 25 13
79 54 September 26 12
75 50 October 24 10
67 45 November 19 7
61 41 December 16 5
71 48 Year 21 9
30-year temperature averages for Santa Cruz, 1981 to 2010
High °F Low °F   High °C Low °C
63 41 January 17 5
64 43 February 18 6
67 44 March 19 7
69 46 April 21 8
71 49 May 22 9
74 52 June 23 11
74 54 July 24 12
76 55 August 24 13
77 53 September 25 12
74 50 October 23 10
67 44 November 19 7
62 41 December 16 5
70 48 Year 21 9

Days of Hot Weather in Santa Cruz

While Santa Cruz can get a taste of hot weather during summer and early fall, really hot days are rare. The seaside city averages just six days a year when the temperature climbs into the 90s F (over 32 °C), typically during June to October. Every couple of years on average, one of those days reaches 100 °F (38 °C).

Days per month in Santa Cruz of at least 70, 80 or 90 °F
  70 °F
21 °C
80 °F
27 °C
90 °F
32 °C
January 4 0 0
February 5 0 0
March 7 1 0
April 12 2 0
May 16 3 0
June 20 4 1
July 22 4 0
August 25 6 1
September 22 8 2
October 19 6 1
November 7 1 0
December 2 0 0
Year 160 36 6

How Often Santa Cruz Has Cold Temperatures

Santa Cruz can count on at least moderate daytime temperatures throughout the year. All but one day annually, on average, reaches a high of at least 50 °F.

While nights during winter are often cool in Santa Cruz, they are seldom crisp. Lows below freezing typically happen six nights a year. Nights that cold can occur from November to February.

Average number of days with low temperatures of 32, 40 or 50 °F or cooler in Santa Cruz
  32 °F
0 °C
40 °F
4 °C
50 °F
10 °C
January 2 14 28
February 1 10 25
March 0 7 27
April 0 4 24
May 0 0 19
June 0 0 10
July 0 0 3
August 0 0 2
September 0 0 6
October 0 1 18
November 1 7 25
December 3 15 28
Year 6 58 214
References

Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.

NOAA National Centers for Environmental Information. 1981-2010 U.S. Climate Normals. (Data Access. FTP.)

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