Nipomo climate

Nipomo Weather in May

NOAA 1991-2020 normals for Twitchell Dam, 15.4 km from Nipomo

Average highs run from 69°F on May 1 to 72°F on May 31, and lows from 47°F to 49°F. Normal precipitation for the month is 0.55 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 Nipomo, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
70°F
Average low
48°F
Precipitation
0.55 in
Record high
105°FMay 15, 2014
Record low
31°FMay 2, 1964
Chance of a freeze
0%
Days of 90°F or more
2.4
Daylight
13 h 37 min to 14 h 21 min
Cloud cover
32%
Humidity
72%
Dew point
49°F
Wind
9.6 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°F47°F96°F 201434°F 196411%
May 269°F47°F98°F 201431°F 196411%
May 369°F47°F94°F 201335°F 195910%
May 469°F47°F90°F 195334°F 196410%
May 569°F47°F92°F 195332°F 197510%
May 669°F47°F89°F 202035°F 197710%
May 769°F47°F93°F 200734°F 195010%
May 869°F47°F91°F 198435°F 19509%
May 969°F48°F93°F 199336°F 19799%
May 1069°F48°F85°F 195037°F 19539%
May 1169°F48°F91°F 199637°F 19539%
May 1270°F48°F92°F 197936°F 19939%
May 1370°F48°F93°F 197937°F 19588%
May 1470°F48°F100°F 201437°F 19998%
May 1570°F48°F105°F 201435°F 19558%
May 1670°F48°F94°F 196733°F 19748%
May 1770°F48°F83°F 197833°F 19748%
May 1870°F48°F88°F 197832°F 19747%
May 1970°F48°F90°F 200336°F 19747%
May 2070°F48°F89°F 200334°F 19747%
May 2171°F48°F88°F 200537°F 19627%
May 2271°F48°F85°F 200038°F 19717%
May 2371°F48°F87°F 194936°F 19806%
May 2471°F49°F82°F 200136°F 19786%
May 2571°F49°F95°F 198436°F 19806%
May 2671°F49°F84°F 197438°F 19806%
May 2772°F49°F93°F 197341°F 19535%
May 2872°F49°F92°F 197341°F 19595%
May 2972°F49°F84°F 199740°F 19805%
May 3072°F49°F83°F 198438°F 19885%
May 3172°F49°F92°F 199738°F 20114%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Nipomo, in percent.02.557.51012.51102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (PDT).

May 1
sunrise 6:11 AM, sunset 7:48 PM
May 31
sunrise 5:49 AM, sunset 8:10 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00049111 (Twitchell Dam), public domain. Records: NOAA GHCN-Daily, station USW00023273, 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.