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San Diego, CA weather and climate

San Diego County, CA · population 1,385,061 · about 417 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at San Diego's own coordinates.

The year at a glance

Sunny days
283
clear or partly cloudy, per year
Precipitation
12 in
per year
Wet days
38
rain or snow per year
Snowfall
0 in
per year
Hot days
15
above 90 °F
Freezing nights
0
at or below 32 °F
Humidity
74%
average relative
Average temperature
64 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
6080JanMarMayJulSepNovDaily high, Jan: 67 °FDaily high, Feb: 67 °FDaily high, Mar: 69 °FDaily high, Apr: 71 °FDaily high, May: 72 °FDaily high, Jun: 75 °FDaily high, Jul: 80 °FDaily high, Aug: 82 °FDaily high, Sep: 81 °FDaily high, Oct: 78 °FDaily high, Nov: 73 °FDaily high, Dec: 67 °FDaily low, Jan: 46 °FDaily low, Feb: 47 °FDaily low, Mar: 50 °FDaily low, Apr: 53 °FDaily low, May: 57 °FDaily low, Jun: 60 °FDaily low, Jul: 64 °FDaily low, Aug: 65 °FDaily low, Sep: 64 °FDaily low, Oct: 58 °FDaily low, Nov: 50 °FDaily low, Dec: 45 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high676769717275808281787367
Daily low464750535760646564585045

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.01.02.03.0JanMarMayJulSepNovSan Diego, Jan: 2.3 inSan Diego, Feb: 2.9 inSan Diego, Mar: 1.9 inSan Diego, Apr: 0.9 inSan Diego, May: 0.4 inSan Diego, Jun: 0.1 inSan Diego, Jul: 0.1 inSan Diego, Aug: 0.1 inSan Diego, Sep: 0.2 inSan Diego, Oct: 0.6 inSan Diego, Nov: 0.9 inSan Diego, Dec: 1.9 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
San Diego2.32.91.90.90.40.10.10.10.20.60.91.9

Monthly sunny days

Days each month with clear or partly cloudy skies.

0102030JanMarMayJulSepNovSan Diego, Jan: 20 daysSan Diego, Feb: 17 daysSan Diego, Mar: 20 daysSan Diego, Apr: 22 daysSan Diego, May: 22 daysSan Diego, Jun: 26 daysSan Diego, Jul: 28 daysSan Diego, Aug: 30 daysSan Diego, Sep: 28 daysSan Diego, Oct: 26 daysSan Diego, Nov: 24 daysSan Diego, Dec: 21 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
San Diego201720222226283028262421

Compare San Diego with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered California city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).