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CheckWeather USSan Juan Capistrano

San Juan Capistrano weather

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The weather map: all three models at once

NWS, American, European side by side around San Juan Capistrano and nearby towns.Live rain radar →
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Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split

San Juan Capistrano, CA is at its warmest in Aug (average highs near 81°F) and coldest in Feb (lows around 46°F), with roughly 24 in of precipitation across the year. Below, compare what NWS, American, European forecast for San Juan Capistrano right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United States before you trust any single number.

San Juan Capistrano climate by month

average daytime high and overnight low across a typical year
Jan
61°
47°
Feb
61°
46°
Mar
61°
48°
Apr
66°
50°
May
67°
55°
Jun
72°
58°
Jul
79°
62°
Aug
81°
64°
Sep
79°
63°
Oct
78°
58°
Nov
71°
51°
Dec
67°
49°

Which forecast is most accurate in San Juan Capistrano?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
American logo
American ★ Best
90
/100rank #1
78±2.2°F95±1.5 mph100100% hitNOAA / NCEP (United States)College Park, Maryland, USA
European logo
European
76
/100rank #2
41±5.9°F98±0.7 mph100100% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom

The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, how we measure forecast accuracy, or which model each weather app uses.

Common questions

What's the weather in San Juan Capistrano today?
On this page we show what NWS, American, European each forecast for San Juan Capistrano today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in San Juan Capistrano today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for San Juan Capistrano and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for San Juan Capistrano?
Over the last 30 days, the American model has been the most accurate for San Juan Capistrano (CheckWeather Score 90/100), ahead of the European at 76. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in San Juan Capistrano?
August is typically the warmest month in San Juan Capistrano, with average highs around 81°F.
How cold does San Juan Capistrano get?
The coldest month in San Juan Capistrano is February, when overnight lows average about 46°F.
How much rain does San Juan Capistrano get?
San Juan Capistrano sees roughly 24 in of precipitation a year, with February usually the wettest month.

Nearby

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