San Diego, CA Weather & Climate Normals
What a normal year in San Diego actually looks like
On the 30-year record NOAA keeps for San Diego, CA, the comfort score comes out to 92/100, very mild year-round: Many months fall in a comfortable temperature range with limited snow or seasonal extremes. Only 12 months a year land in the 55–75°F range this site treats as mild.
How much San Diego's weather actually swings
Average temperatures in San Diego run from 56°F in Dec up to 74°F in Aug, a 17.4°F seasonal swing, one of the smaller gaps in this dataset.
How wet San Diego actually gets
San Diego averages 11.02in of precipitation a year across roughly 50 days with measurable rain or snow; the nearest NOAA station does not record snowfall, so no snow figure is shown rather than guessed.
San Diego against the rest of the country
Out of 4876 cities scored here, San Diego comes in at 79; within CA alone it ranks 79 of 429. Population is about 1,404,452.
Checking the actual forecast
These figures come from SAN DIEGO MONTGOMERY FLD, CA US, the NOAA station 1.5 miles from San Diego, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · Why this uses the nearest NOAA station