San Diego (SD) weather
Loading live data…Cloudy,much the same tomorrow
NWS, the American and the European model put San Diego's high today between 76° and 82°, a 6° split. Tomorrow looks partly cloudy around 79°, with a 1% chance of rain.
CheckWeather.io on iPhoneFree. No ads, no account.San Diego weather alerts and warnings
active National Weather Service watches, warnings and advisoriesChecking the National Weather Service for active alerts covering San Diego…
San Diego weather in numbers
from 30 years of measured normalsSan Diego swings 31°F across the year, from 77°F highs in August to 46°F lows in January, and January is usually the wettest month in a year that brings about 19 in of precipitation.
The weather map: all three models at once
NWS, American, European side by side around San Diego and nearby towns.Live rain radar →San Diego in 3D: the weather on the streets, hour by hour
Rain, sun and real shadows drawn on a 3D map of San Diego, 48 hours ahead. Drag the timeline, pick what you are doing or where you are going, and read the verdict for that hour.Full screen ↗What are you doing?
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San Diego hourly forecast: next 14 hours
consensus of the three modelsRain in the next 24 hours, model by model
each model's own hourly precipitation, side by sideLoading the three models…
San Diego 10-day forecast, out to 14 days
where the models agree, and where they splitSan Diego, California (CA). Often shortened to SD. Below we compare what NWS, American, European forecast for San Diego right now and flag exactly where they disagree, then break down San Diego'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 Diego weather by month
what to expect in San Diego through the yearHere is San Diego'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 Diego by season.
What San Diego's weather is like through the year
San Diego runs from warm summers, with August highs near 77°F, to cold winters, when January lows sit around 46°F (a swing of about 31°F across the year). January is usually the wettest month, and San Diego sees roughly 19 inches of precipitation annually.
Best time to visit San Diego
The most comfortable time to visit San Diego is usually February, March, April and May, 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 Diego?
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 Diego, scoring 87/100 on our CheckWeather Score, ahead of the European at 60. See the full US accuracy scoreboard for exactly how every model is tested.
What do you think of the forecasts?
your vote countsThe accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.
One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.
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.