Santa Cruz weather in December
December in Santa Cruz: hot, soaked, with clean air — fine if you can take 13 rainy days.
#11 of 12 months in Santa Cruz · #488 of 897 destinations to visit in December · comfort 70/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Santa Cruz in December
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Santa Cruz climate normals — December
| Daytime high | 31°C / 88°F | 🥵 hot |
|---|---|---|
| Nighttime low | 23°C / 73°F | |
| Rainfall | 151 mm / 5.9 in | ⛈ soaked |
| Rainy days | 13 days | |
| Humidity | 66% | 💧 humid |
| Dew point | 20°C / 68°F | |
| Sunshine | 10 h/day | |
| Daylight | 13.2 h | |
| Wind | 19 km/h / 11 mph | |
| Air quality (US AQI) | 34 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Santa Cruz in December — FAQ
- Is December a good time to visit Santa Cruz?
- December in Santa Cruz: hot, soaked, with clean air — fine if you can take 13 rainy days. It ranks #11 of 12 months for Santa Cruz on SeasonMap's comfort score (70/100).
- What is the weather like in Santa Cruz in December?
- In December, Santa Cruz averages a daily high of 31°C and a low of 22.8°C, with about 150.7 mm of rain over roughly 13 rainy days.
- What is the air quality in Santa Cruz in December?
- Santa Cruz has a mean US Air Quality Index of about 34 in December.