Monterey Temperatures: Averages by Month





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

The average high and low temperatures are listed below for Monterey, 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 60, 70 or 80 °F monthly and annually in Monterey, scroll down farther. There are also counts of days with cool weather.

The first set of high and low temperatures are averages for 2009 to 2018. Everything else here is based on 1981 to 2010 weather recorded near the Monterey Pines Golf Course.

10-year temperature averages for Monterey, 2009 to 2018
High °F Low °F   High °C Low °C
61 44 January 16 7
60 45 February 16 7
61 46 March 16 8
62 48 April 17 9
62 50 May 17 10
65 53 June 19 11
66 54 July 19 12
67 55 August 19 13
68 55 September 20 13
68 52 October 20 11
63 47 November 17 8
59 43 December 15 6
64 49 Year 18 10
30-year temperature averages for Monterey, 1981 to 2010
High °F Low °F   High °C Low °C
58 42 January 14 5
59 44 February 15 7
59 45 March 15 7
61 47 April 16 9
62 50 May 17 10
65 52 June 18 11
66 54 July 19 12
67 54 August 20 12
67 53 September 20 12
66 50 October 19 10
62 46 November 17 8
58 42 December 14 5
62 48 Year 17 9

Days of Hot Weather in Monterey

Mild temperatures are the norm for Monterey. Only a handful of days make it into the 80s Fahrenheit and 90-degree weather is not expected at this Pacific coast city.

Days per month in Monterey of at least 60, 70 or 80 °F
  60 °F
16 °C
70 °F
21 °C
80 °F
27 °C
January 10 1 0
February 10 1 0
March 12 1 0
April 14 2 1
May 20 3 1
June 25 3 1
July 28 6 0
August 30 8 1
September 27 8 1
October 25 6 1
November 17 3 0
December 10 1 0
Year 228 44 6

How Often Monterey Has Cold Temperatures

At night, the temperature in Monterey can drop into the 30s Fahrenheit (below 4 °C) during late fall, winter and early spring. But only a couple of nights a year on average reach freezing.

No matter how cold it gets at night, the days can be counted on to warm up to at least 40 degrees. In fact, typically all but eight days a year at the waterfront city have highs of 50 degrees or more.

Average number of days with low temperatures of 40 and 50 °F or cooler in Monterey
  40 °F
4 °C
50 °F
10 °C
January 12 29
February 5 26
March 3 27
April 1 24
May 0 16
June 0 6
July 0 1
August 0 1
September 0 5
October 0 17
November 3 25
December 12 29
Year 35 207
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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