San Juan Capistrano, CA Weather & Climate Normals
San Juan Capistrano's real weather, in one number
San Juan Capistrano, CA scores 93/100 on this site's reading of NOAA's own 30-year normals: very mild year-round. Many months fall in a comfortable temperature range with limited snow or seasonal extremes. 12 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
San Juan Capistrano's hottest and coldest months
San Juan Capistrano's hottest month is Aug, averaging 71°F; its coldest is Dec, averaging 56°F, a 15.6°F swing across the year, one of the smaller gaps in this dataset.
Rain and snow in San Juan Capistrano
San Juan Capistrano averages 12.68in of precipitation a year across roughly 31 days with measurable rain or snow, and 0in of snow a year.
Where San Juan Capistrano ranks
San Juan Capistrano ranks 61 of 4876 US cities in this dataset for comfort score, and 61 of 429 within CA. About 35,469 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from LAGUNA BEACH, CA US, 7.9 miles from San Juan Capistrano, not a prediction for any specific day.
More on how this is worked out
How the comfort score is calculated · Why some cities show no snow or rain figure