San Clemente climate

San Clemente Weather in January

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

Average highs run from 25°C on January 1 to 25°C on January 31, and lows from 18°C to 20°C. Normal precipitation for the month is 6 mm over about 0 wet days.

January day by day

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

Normal daily high and low temperature at San Clemente, in °C, with the record for each date.15202530151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

January at a glance

Average high
25°C
Average low
19°C
Precipitation
6 mm
Reanalysis high
29°CJan 31, 1998
Reanalysis low
16°CJan 16, 1999
Daylight
12 h 55 min to 12 h 42 min
Cloud cover
73%
Humidity
78%
Dew point
17°C
Wind
13.7 km/h

Every day of the month

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

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Jan 125°C18°C27°C 199816°C 20023%
Jan 225°C18°C27°C 199817°C 20022%
Jan 325°C18°C26°C 201617°C 20002%
Jan 425°C18°C26°C 201617°C 20002%
Jan 525°C18°C27°C 199817°C 20012%
Jan 625°C19°C28°C 201617°C 19962%
Jan 725°C19°C27°C 199816°C 20022%
Jan 825°C19°C27°C 201617°C 20022%
Jan 925°C19°C28°C 199817°C 20022%
Jan 1025°C19°C27°C 199817°C 20022%
Jan 1125°C19°C27°C 199817°C 20022%
Jan 1225°C19°C28°C 199817°C 20123%
Jan 1325°C19°C28°C 199817°C 20023%
Jan 1425°C19°C28°C 199817°C 20023%
Jan 1525°C19°C27°C 199817°C 19994%
Jan 1625°C19°C26°C 200716°C 19993%
Jan 1725°C19°C27°C 199817°C 19993%
Jan 1825°C19°C28°C 199816°C 20153%
Jan 1925°C19°C28°C 199817°C 19993%
Jan 2025°C19°C27°C 199217°C 19993%
Jan 2125°C19°C29°C 199817°C 19993%
Jan 2225°C19°C27°C 199817°C 19993%
Jan 2325°C19°C29°C 199818°C 19962%
Jan 2425°C19°C27°C 199218°C 19962%
Jan 2525°C19°C27°C 199817°C 20123%
Jan 2625°C19°C27°C 199417°C 20123%
Jan 2725°C19°C29°C 199818°C 20122%
Jan 2825°C19°C27°C 200718°C 20123%
Jan 2925°C19°C27°C 201618°C 19963%
Jan 3025°C20°C28°C 199818°C 19963%
Jan 3125°C20°C29°C 199818°C 20133%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at San Clemente, in percent.012341102030
  • Chance of a wet day

Sunrise and sunset

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

January 1
sunrise 5:41 AM, sunset 6:36 PM
January 31
sunrise 5:57 AM, sunset 6:39 PM

Every day of January: sun and moon

Other months

Sources

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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.