Santa Cruz Weather in December
Average highs run from 29°C on December 1 to 32°C on December 31, and lows from 11°C to 13°C. Normal precipitation for the month is 8 mm over about 1 wet days.
December day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
December at a glance
- Average high
- 30°C
- Average low
- 12°C
- Precipitation
- 8 mm
- Record high
- 36°CDec 30, 2022
- Record low
- 2°CDec 11, 1991
- Daylight
- 14 h 18 min to 14 h 27 min
- Cloud cover
- 27%
- Humidity
- 46%
- Dew point
- 6°C
- Wind
- 10.1 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Dec 1 | 29°C | 11°C | 32°C 2011 | 5°C 1958 | 5% |
| Dec 2 | 29°C | 11°C | 33°C 2019 | 4°C 1974 | 5% |
| Dec 3 | 29°C | 12°C | 33°C 1982 | 6°C 1958 | 5% |
| Dec 4 | 29°C | 12°C | 33°C 2014 | 6°C 1973 | 5% |
| Dec 5 | 29°C | 12°C | 32°C 2014 | 4°C 1966 | 6% |
| Dec 6 | 29°C | 12°C | 32°C 2021 | 6°C 2010 | 6% |
| Dec 7 | 29°C | 12°C | 34°C 2018 | 3°C 1973 | 5% |
| Dec 8 | 29°C | 12°C | 33°C 1994 | 6°C 1990 | 5% |
| Dec 9 | 29°C | 12°C | 33°C 2001 | 4°C 1957 | 5% |
| Dec 10 | 30°C | 12°C | 33°C 2022 | 6°C 2010 | 4% |
| Dec 11 | 30°C | 12°C | 34°C 2023 | 2°C 1991 | 4% |
| Dec 12 | 30°C | 12°C | 32°C 2001 | 4°C 2010 | 4% |
| Dec 13 | 30°C | 12°C | 33°C 1996 | 6°C 1968 | 4% |
| Dec 14 | 30°C | 12°C | 33°C 1983 | 3°C 1958 | 4% |
| Dec 15 | 30°C | 12°C | 33°C 2008 | 5°C 1958 | 4% |
| Dec 16 | 30°C | 12°C | 33°C 2017 | 7°C 1958 | 3% |
| Dec 17 | 30°C | 13°C | 33°C 2022 | 7°C 1985 | 3% |
| Dec 18 | 30°C | 13°C | 34°C 2001 | 6°C 1980 | 3% |
| Dec 19 | 31°C | 13°C | 34°C 2018 | 6°C 1980 | 3% |
| Dec 20 | 31°C | 13°C | 33°C 2007 | 6°C 1980 | 3% |
| Dec 21 | 31°C | 13°C | 34°C 2021 | 5°C 1968 | 3% |
| Dec 22 | 31°C | 13°C | 34°C 2021 | 4°C 1968 | 3% |
| Dec 23 | 31°C | 13°C | 33°C 2021 | 6°C 1968 | 3% |
| Dec 24 | 31°C | 13°C | 34°C 2001 | 9°C 1958 | 3% |
| Dec 25 | 31°C | 13°C | 35°C 2018 | 7°C 1976 | 3% |
| Dec 26 | 31°C | 13°C | 35°C 2023 | 8°C 2012 | 3% |
| Dec 27 | 31°C | 13°C | 34°C 2021 | 4°C 1974 | 3% |
| Dec 28 | 31°C | 13°C | 35°C 2011 | 7°C 2003 | 2% |
| Dec 29 | 32°C | 13°C | 34°C 1981 | 8°C 1958 | 2% |
| Dec 30 | 32°C | 13°C | 36°C 2022 | 6°C 1957 | 2% |
| Dec 31 | 32°C | 13°C | 35°C 2019 | 5°C 1957 | 2% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- December 1
- sunrise 6:26 AM, sunset 8:44 PM
- December 31
- sunrise 6:35 AM, sunset 9:02 PM
Other months
Sources
Records: NOAA GHCN-Daily, station CI000085629, 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 2026-09-27. Sun and moon: computed with the NOAA solar equations and Meeus.