San Juan Capistrano (CA) monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at San Juan Capistrano

San Juan Capistrano average temperature chart (Celsius) San Juan Capistrano average temperature chart (Fahrenheit)
Average monthly temperatures in San Juan Capistrano (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 17.8 18.5 18.2 20.2 21.8 24.1 27.6 28.1 26.9 24.3 20.6 17.9
°F 64.1 65.2 64.8 68.3 71.2 75.4 81.6 82.6 80.3 75.7 69.1 64.3

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

San Juan Capistrano monthly rainfall chart (mm) San Juan Capistrano monthly rainfall chart (inches)
Average monthly rainfall in San Juan Capistrano (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 72 64 63 31 7 2 2 3 6 7 41 49
inches 2.8 2.5 2.5 1.2 0.3 0.1 0.1 0.1 0.2 0.3 1.6 1.9
Rainy days 5 5 6 4 1 1 0 1 2 2 4 5

Average annual rainfall in San Juan Capistrano: 261.6mm (103 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in San Juan Capistrano

San Juan Capistrano average daily sunshine chart
Average daily sunshine San Juan Capistrano
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 8 8.6 9.1 10.4 9.6 10 11.8 11.4 9.8 8.9 8.1 7.9

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

San Juan Capistrano average minimum / maximum temperatures (Celsius) San Juan Capistrano average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in San Juan Capistrano (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 5.5 6.3 6.9 8.4 11 13.2 15.6 16.2 14.7 11.8 8.1 5.4
Max °C 18.2 18.8 18.5 20.5 22.1 24.4 27.9 28.4 27.2 24.6 20.9 18.3
Min °F 41.8 43.3 44.4 47 51.7 55.8 60 61.2 58.4 53.2 46.6 41.6
Max °F 53.2 54.5 54.9 57.9 61.7 65.8 71.1 72.1 69.6 64.8 58.1 53.2

Sea temperature

The graph below shows the average sea temperature.

San Juan Capistrano average sea temperature chart (Celsius) San Juan Capistrano average sea temperature chart (Fahrenheit)
Average sea temperature around San Juan Capistrano in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 14.9 14.9 15.1 15.6 16.6 18 19.8 20.5 20.4 19.3 17.5 15.7
°F 58.8 58.8 59.3 60 61.8 64.4 67.6 69 68.8 66.7 63.5 60.2

Wind speed

The graph below shows the average wind speed.

San Juan Capistrano average winspeed by month (km/h) San Juan Capistrano average winspeed by month (mph)
Average wind speed in San Juan Capistrano (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 11 12 14 14 14 14 14 13 13 12 11 10
mph 7 8 9 9 9 9 9 8 8 7 7 7

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

San Juan Capistrano relative humidity averages
Average relative humidity in San Juan Capistrano
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
63% 65% 65% 63% 65% 67% 67% 68% 68% 66% 65% 64%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

San Juan Capistrano weather stats

San Juan Capistrano weather statistics
Hottest month: August 28.1°C 82.6°F
Driest month: July 2mm 0.1ins
Sunniest month: August 11.4hrs
Coldest month: January 17.8°C 64°F
Wettest month: January 72mm 2.8ins
Warmest sea: August 20.5°C 68.9°F
Map showing location of San Juan Capistrano (33.50169, -117.66255) San Juan Capistrano map pin © Google

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