San Jose weather
Loading live data…Cloudy,much the same tomorrow
NWS, the American and the European model agree on a high near 79° in San Jose today. Tomorrow looks partly cloudy around 76°, with a 0% chance of rain.
The weather map: all three models at once
NWS, American, European side by side around San Jose and nearby towns.Live rain radar →Next 14 hours
consensus of the three models14-day forecast
where the models agree, and where they splitSan Jose, CA. Below we compare what NWS, American, European forecast for San Jose right now and flag exactly where they disagree, then break down San Jose's weather month by month and which forecast model has been most accurate here.
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 Jose weather by month
what to expect in San Jose through the yearHere is San Jose's typical weather in each month: the average daytime high and overnight low in °F, how each month feels, and the wettest month marked. Use it to plan any trip to San Jose by season.
What San Jose's weather is like through the year
San Jose runs from warm summers, with July highs near 87°F, to cold winters, when February lows sit around 42°F (a swing of about 45°F across the year). January is usually the wettest month, and San Jose sees roughly 28 inches of precipitation annually.
Best time to visit San Jose
The most comfortable time to visit San Jose is usually March, April, May and November, when daytime highs sit in the pleasant 60-78°F range and the heaviest January rain is behind you.
Which forecast is most accurate in San Jose?
CheckWeather Score — graded against the weather that actually happened
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.
Bottom line: over the last 30 days the American model has been the most accurate forecast for San Jose, scoring 90/100 on our CheckWeather Score, ahead of the European at 75. See the full US accuracy scoreboard for exactly how every model is tested.
Where the models disagree
temperature and rain, judged separatelyThe models often agree on temperature and still split on rain — and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.