Santa Cruz Weather in December
Average highs run from 29°C on December 1 to 29°C on December 31, and lows from 22°C to 21°C. Normal precipitation for the month is 84 mm over about 12 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
- 29°C
- Average low
- 22°C
- Precipitation
- 84 mm
- Record high
- 36°CDec 1, 1987
- Record low
- 17°CDec 15, 1988
- Daylight
- 11 h 19 min to 11 h 15 min
- Cloud cover
- 56%
- Humidity
- 85%
- Dew point
- 22°C
- Wind
- 15.5 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 | 22°C | 36°C 1987 | 21°C 1960 | 45% |
| Dec 2 | 29°C | 22°C | 36°C 1968 | 20°C 1989 | 44% |
| Dec 3 | 29°C | 22°C | 35°C 1968 | 20°C 1989 | 44% |
| Dec 4 | 29°C | 22°C | 34°C 1968 | 20°C 1989 | 46% |
| Dec 5 | 29°C | 22°C | 35°C 1987 | 20°C 1958 | 45% |
| Dec 6 | 29°C | 22°C | 36°C 1985 | 20°C 1974 | 46% |
| Dec 7 | 29°C | 22°C | 34°C 1968 | 20°C 1989 | 47% |
| Dec 8 | 29°C | 22°C | 34°C 1963 | 19°C 1986 | 47% |
| Dec 9 | 29°C | 22°C | 35°C 1975 | 20°C 1961 | 49% |
| Dec 10 | 29°C | 22°C | 34°C 1968 | 19°C 1988 | 49% |
| Dec 11 | 29°C | 22°C | 34°C 1968 | 19°C 1977 | 49% |
| Dec 12 | 29°C | 22°C | 35°C 1968 | 19°C 1989 | 49% |
| Dec 13 | 29°C | 22°C | 34°C 1968 | 19°C 1988 | 47% |
| Dec 14 | 29°C | 22°C | 35°C 1985 | 19°C 1988 | 47% |
| Dec 15 | 29°C | 22°C | 35°C 1985 | 17°C 1988 | 46% |
| Dec 16 | 29°C | 22°C | 34°C 1976 | 20°C 1979 | 46% |
| Dec 17 | 29°C | 22°C | 34°C 1976 | 20°C 1977 | 45% |
| Dec 18 | 29°C | 22°C | 34°C 1978 | 19°C 1968 | 44% |
| Dec 19 | 29°C | 22°C | 35°C 1978 | 20°C 1968 | 42% |
| Dec 20 | 29°C | 21°C | 34°C 1978 | 20°C 1968 | 43% |
| Dec 21 | 29°C | 21°C | 35°C 1987 | 21°C 1977 | 41% |
| Dec 22 | 29°C | 21°C | 35°C 1968 | 19°C 1985 | 40% |
| Dec 23 | 29°C | 21°C | 34°C 1978 | 21°C 1967 | 38% |
| Dec 24 | 29°C | 21°C | 34°C 1968 | 20°C 1972 | 38% |
| Dec 25 | 29°C | 21°C | 35°C 1968 | 19°C 1972 | 36% |
| Dec 26 | 29°C | 21°C | 34°C 1976 | 19°C 1968 | 34% |
| Dec 27 | 29°C | 21°C | 34°C 1987 | 18°C 1985 | 33% |
| Dec 28 | 29°C | 21°C | 35°C 1987 | 19°C 1984 | 32% |
| Dec 29 | 29°C | 21°C | 34°C 1973 | 19°C 1975 | 29% |
| Dec 30 | 29°C | 21°C | 34°C 1982 | 20°C 1958 | 29% |
| Dec 31 | 29°C | 21°C | 35°C 1985 | 20°C 1972 | 28% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+8).
- December 1
- sunrise 6:07 AM, sunset 5:26 PM
- December 31
- sunrise 6:23 AM, sunset 5:38 PM
Other months
Sources
Records: NOAA GHCN-Daily, station RPW00041231, 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.