San Diego climate

San Diego Weather in May

NOAA 1991-2020 normals for North Island Nas, 3.7 km from San Diego

Average highs run from 69°F on May 1 to 70°F on May 31, and lows from 57°F to 60°F. Normal precipitation for the month is 0.45 in over about 2 wet days.

May day by day

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

Normal daily high and low temperature at San Diego, in °F, with the record for each date.405060708090100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
69°F
Average low
59°F
Precipitation
0.45 in
Record high
97°FMay 15, 2014
Record low
48°FMay 1, 1967
Chance of a freeze
0%
Daylight
13 h 30 min to 14 h 09 min
Cloud cover
35%
Humidity
68%
Dew point
49°F
Wind
7.2 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
May 169°F57°F95°F 201448°F 19678%
May 269°F58°F93°F 200450°F 19517%
May 369°F58°F93°F 200449°F 19557%
May 469°F58°F90°F 195351°F 19497%
May 569°F58°F96°F 195348°F 19507%
May 669°F58°F87°F 199050°F 19647%
May 769°F58°F85°F 194149°F 19647%
May 869°F58°F86°F 200749°F 19657%
May 969°F59°F87°F 198450°F 19647%
May 1069°F59°F85°F 194351°F 20036%
May 1169°F59°F83°F 199653°F 19486%
May 1269°F59°F88°F 197949°F 20226%
May 1369°F59°F94°F 197951°F 19676%
May 1469°F59°F93°F 201452°F 19426%
May 1569°F59°F97°F 201452°F 19686%
May 1669°F59°F92°F 195651°F 19556%
May 1769°F59°F94°F 195650°F 19625%
May 1869°F59°F86°F 198350°F 19435%
May 1969°F60°F87°F 194351°F 19445%
May 2069°F60°F87°F 194252°F 19455%
May 2169°F60°F85°F 194149°F 19485%
May 2270°F60°F80°F 195853°F 19485%
May 2370°F60°F79°F 194954°F 19495%
May 2470°F60°F76°F 202151°F 19455%
May 2570°F60°F86°F 194153°F 19505%
May 2670°F60°F80°F 194152°F 19534%
May 2770°F60°F80°F 196052°F 19424%
May 2870°F60°F86°F 199753°F 19644%
May 2970°F60°F88°F 197853°F 19534%
May 3070°F60°F77°F 194653°F 19534%
May 3170°F60°F82°F 200455°F 19404%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at San Diego, in percent.024681102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (PDT).

May 1
sunrise 6:01 AM, sunset 7:31 PM
May 31
sunrise 5:42 AM, sunset 7:51 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00093112 (North Island Nas), public domain. Records: NOAA GHCN-Daily, station USW00023188, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.