Santa Cruz Weather in December
In December, Santa Cruz averages a high of 31°C (88°F) and a low of 22°C (71°F), from 23 years of daily records (1982–2025).
31°C
Average high
88°F
22°C
Average low
71°F
39°C
Record high
102°F · December 7, 2008
15°C
Record low
59°F · December 7, 1999
What December Is Like in Santa Cruz
- A typical December brings 2.4 days above 35°C (95°F).
- The warmest December in the record was 2023; the coldest was 1996.
At least 1 mm of rain falls on 46% of December days.
Warmest: 2023 (35.1°C)Latest: 2024 (31.9°C)10-year averageLong-run average (31.2°C)
Look Up a Day in December
See the weather in Santa Cruz on any December date, year by year.
Source: NOAA GHCN-Daily, El Trompillo (1973–2025). Averages cover 1982–2025. How we compute this