Santa Bárbara climate

Santa Bárbara Weather in December

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

Average highs run from 26°C on December 1 to 26°C on December 31, and lows from 17°C to 18°C. Normal precipitation for the month is 279 mm over about 25 wet days.

December day by day

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

Normal daily high and low temperature at Santa Bárbara, in °C, with the record for each date.101520253035151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

December at a glance

Average high
26°C
Average low
17°C
Precipitation
279 mm
Reanalysis high
33°CDec 3, 2007
Reanalysis low
11°CDec 14, 1992
Daylight
13 h 15 min to 13 h 19 min
Cloud cover
78%
Humidity
84%
Dew point
18°C
Wind
12.2 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
Dec 126°C17°C30°C 200714°C 201479%
Dec 226°C17°C32°C 200713°C 201479%
Dec 326°C17°C33°C 200713°C 199180%
Dec 426°C17°C32°C 202012°C 200580%
Dec 526°C17°C30°C 200414°C 200581%
Dec 626°C17°C32°C 200715°C 200882%
Dec 726°C17°C30°C 201214°C 200381%
Dec 826°C17°C30°C 199313°C 200581%
Dec 926°C17°C31°C 200812°C 201879%
Dec 1026°C17°C31°C 200814°C 201878%
Dec 1126°C17°C30°C 200715°C 199579%
Dec 1226°C17°C30°C 200715°C 200980%
Dec 1326°C17°C29°C 200713°C 199279%
Dec 1426°C17°C30°C 202011°C 199279%
Dec 1526°C17°C32°C 202013°C 199279%
Dec 1626°C17°C32°C 202013°C 201678%
Dec 1726°C17°C30°C 201815°C 201678%
Dec 1826°C17°C31°C 201815°C 201379%
Dec 1926°C17°C32°C 201815°C 201380%
Dec 2026°C17°C32°C 201815°C 201079%
Dec 2126°C17°C31°C 201815°C 201079%
Dec 2226°C17°C31°C 201814°C 199380%
Dec 2326°C18°C32°C 201814°C 199380%
Dec 2426°C18°C30°C 201514°C 200580%
Dec 2526°C18°C32°C 201215°C 199281%
Dec 2626°C18°C32°C 201215°C 200281%
Dec 2726°C18°C30°C 201414°C 200281%
Dec 2826°C18°C32°C 201414°C 199282%
Dec 2926°C18°C33°C 201416°C 200582%
Dec 3026°C18°C30°C 201416°C 199281%
Dec 3126°C18°C31°C 200715°C 201680%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Santa Bárbara, in percent.0204060801001102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT-3).

December 1
sunrise 5:05 AM, sunset 6:20 PM
December 31
sunrise 5:17 AM, sunset 6:36 PM

Every day of December: 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.