ClimateForecastNovemberDecember >>

San Juan Capistrano (CA) Climate by Month

The temperature in San Juan Capistrano varies moderately throughout the year. The temperatures shift from warm to pleasant. It typically sees modest rainfall throughout the year. Let’s explore the climate details in depth to provide you with a complete overview.

Average day and night temperature

In San Juan Capistrano, seasonal changes bring about a moderate variation in temperatures. Average daytime temperatures reach a comfortable 29°C in September. In December, the coolest month of the year, temperatures drop to a pleasant 19°C. At night, expect cooler temperatures, averaging 8°C during this month.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

With annual rainfall averaging 260 mm, San Juan Capistrano maintains relatively low precipitation levels throughout the seasons. San Juan Capistrano can be quite wet during December, receiving approximately 74 mm of precipitation over 8 rainy days. In contrast June, experiences much drier conditions, with 0.4 mm of rainfall, spread across 0 rainy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

San Juan Capistrano can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 12.3 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 6.6 hours of sunlight per day.

Monthly hours of sunshine

Data from: Corona, the United States of America (42 KM, 26 Miles).

Daily hours of sunshine

Data from: Corona, the United States of America (42 KM, 26 Miles).

The best time of year to visit San Juan Capistrano in the United States of America

During the months of January, February, March, April, May, June and November you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in San Juan Capistrano?
    September has an average maximum temperature of 29°C and is the warmest month of the year.
  • Which is the coldest month in San Juan Capistrano?
    The coldest month is December with an average maximum temperature of 19°C.
  • Which is the wettest month in San Juan Capistrano?
    December tops the wettest month list with 74 mm of rainfall.
  • Which is the driest month in San Juan Capistrano?
    June is the driest month with 0 mm of precipitation.
  • Which is the sunniest month in San Juan Capistrano?
    July is the sunniest month with an average of 369 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for San Juan Capistrano (CA)

    Sat   Nov 23
    20°C | 7°C
    SW 7 km/h
    1.5 mm
    overcast and  chance of rain

    overcast and chance of rain

    Sun   Nov 24
    21°C | 10°C
    W 11 km/h
    partly cloudy and no rain

    partly cloudy and no rain

    Mon   Nov 25
    24°C | 7°C
    SW 11 km/h
    almost clear and no rain

    almost clear and no rain