San Diego climate

San Diego Weather in April

NASA POWER reanalysis for the half-degree grid cell around San Diego, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 31°C on April 1 to 30°C on April 30, and lows from 18°C to 19°C. Normal precipitation for the month is 47 mm over about 8 wet days.

April day by day

The normal high and low for each date, and the record, in °C.

Normal daily high and low temperature at San Diego, in °C, with the record for each date.15202530354045151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
30°C
Average low
19°C
Precipitation
47 mm
Record high
40°CApr 8, 2019
Record low
20°CApr 5, 1976
Daylight
12 h 13 min to 12 h 30 min
Cloud cover
78%
Humidity
73%
Dew point
17°C
Wind
7.2 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowRecord highRecord lowChance wet
Apr 131°C18°C39°C 201223°C 199115%
Apr 231°C18°C38°C 201322°C 199115%
Apr 331°C18°C38°C 201523°C 200115%
Apr 431°C18°C38°C 197323°C 200116%
Apr 531°C18°C39°C 197320°C 197617%
Apr 631°C18°C37°C 197721°C 201718%
Apr 731°C18°C39°C 201923°C 198019%
Apr 831°C18°C40°C 201922°C 197820%
Apr 931°C18°C40°C 201923°C 198021%
Apr 1031°C18°C38°C 201921°C 197622%
Apr 1131°C18°C38°C 197720°C 197624%
Apr 1230°C18°C38°C 201322°C 197626%
Apr 1330°C18°C40°C 197522°C 197527%
Apr 1430°C18°C39°C 202423°C 201128%
Apr 1530°C18°C39°C 197323°C 199630%
Apr 1630°C19°C38°C 201924°C 202031%
Apr 1730°C19°C38°C 197722°C 201832%
Apr 1830°C19°C39°C 202423°C 202334%
Apr 1930°C19°C37°C 201123°C 200335%
Apr 2030°C19°C38°C 197723°C 202235%
Apr 2130°C19°C38°C 201523°C 202235%
Apr 2230°C19°C37°C 197723°C 197936%
Apr 2330°C19°C39°C 201523°C 202336%
Apr 2430°C19°C39°C 201023°C 200137%
Apr 2530°C19°C39°C 201523°C 201237%
Apr 2630°C19°C38°C 201524°C 199337%
Apr 2730°C19°C38°C 201623°C 197737%
Apr 2830°C19°C36°C 197723°C 200736%
Apr 2930°C19°C39°C 201921°C 198238%
Apr 3030°C19°C38°C 201524°C 197339%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at San Diego, in percent.0102030401102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT-5).

April 1
sunrise 5:50 AM, sunset 6:03 PM
April 30
sunrise 5:35 AM, sunset 6:05 PM

Every day of April: sun and moon

Other months

Sources

Records: NOAA GHCN-Daily, station COM00080036, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-26. Sun and moon: computed with the NOAA solar equations and Meeus.