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 1991 to 2020 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, 1991 to 2020
High °F Low °F   High °C Low °C
59 43 January 15 6
60 44 February 15 7
61 46 March 16 8
62 47 April 16 9
63 50 May 17 10
65 52 June 18 11
66 54 July 19 12
67 55 August 19 13
68 54 September 20 12
67 51 October 19 10
63 46 November 17 8
58 43 December 15 6
63 49 Year 17 9

Days of Hot Weather in Monterey

Mild temperatures are the norm for Monterey. Only 11 days make it into the 80s Fahrenheit and with two of those on average reaching 90 degrees. Temperatures in the 100s F (38 °C) is not normal for 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 18 3 0
February 16 3 0
March 21 4 1
April 20 4 1
May 25 5 1
June 28 8 1
July 31 11 1
August 31 13 1
September 30 14 2
October 29 11 3
November 24 6 1
December 17 2 0
Year 289 83 11

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 one day 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 9 29
February 6 25
March 3 27
April 1 25
May 0 17
June 0 7
July 0 2
August 0 1
September 0 4
October 0 15
November 2 24
December 11 28
Year 33 204
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 (NCEI). Climate Normals.

California Temperatures
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