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CheckWeather USSan Juan

San Juan weather

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The weather map: all three models at once

NWS, American, European side by side around San Juan 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, TX is at its warmest in Jun (average highs near 98°F) and coldest in Jan (lows around 55°F), with roughly 27 in of precipitation across the year. Below, compare what NWS, American, European forecast for San Juan 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 climate by month

average daytime high and overnight low across a typical year
Jan
74°
55°
Feb
77°
58°
Mar
84°
65°
Apr
86°
68°
May
93°
75°
Jun
98°
79°
Jul
96°
79°
Aug
98°
79°
Sep
95°
78°
Oct
88°
70°
Nov
79°
63°
Dec
75°
59°

Which forecast is most accurate in San Juan?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
91
/100rank #1
95±0.5°F99±0.4 mph8290% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
75
/100rank #2
82±1.8°F86±4.3 mph5877% hitNOAA / NCEP (United States)College Park, Maryland, USA

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 today?
On this page we show what NWS, American, European each forecast for San Juan 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 today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for San Juan 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?
Over the last 30 days, the European model has been the most accurate for San Juan (CheckWeather Score 91/100), ahead of the American at 75. 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?
June is typically the warmest month in San Juan, with average highs around 98°F.
How cold does San Juan get?
The coldest month in San Juan is January, when overnight lows average about 55°F.
How much rain does San Juan get?
San Juan sees roughly 27 in of precipitation a year, with April usually the wettest month.

Nearby

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