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United StatesThe weather in December in Santa Cruz
It's cool to moderate in December in Santa Cruz with an average temperature of 16°C. Temperatures this month range from a low of 15°C to a high of 20°C. At night, you can expect temperatures between 5°C and 8°C.
Looking for sun and warm weather? December isn’t a good month to be in Santa Cruz. The temperatures are too low for a warm stay this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in December for Santa Cruz, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 27°C in 2021, Santa Cruz reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was 9°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of -2°C to a highest value of 16°C.
Water temperature
The water temperature at Santa Cruz is 14°C this month. This is too cold to swim without protective gear.
Rainfall amount
In December, there is an average of 153 mm of precipitation, spread over 18 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
Daily weather in December for Santa Cruz
Click on any day in December to get detailed info about the usual weather on that day in Santa Cruz. Check out the historical temperatures and precipitation over the past 10 years on this day.
December weather comparison
| Santa Cruz | New York | |
|---|---|---|
| Average temperature | 16°C | 9°C |
| Max. temperature | 20°C | 12°C |
| Min. temperature | 5°C | -5°C |
| Total precipitation | 153 mm | 133 mm |
| Rainy days | 18 days | 17 days |
Start of December
The month of December starts in Santa Cruz with mild temps, averaging around 18°C during the day and nights around 7°C.
Mid December
By mid-December, daytime temps drop to around 17°C, with nights around 7°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of December
By the end of December, the average daytime temperature in Santa Cruz is around 16°C, while nighttime temps are about 6°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
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UV index
The UV index is a maximum of 4 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Check out the climate of Santa Cruz for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in December in Santa Cruz, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in December in Santa Cruz
Temperature in December in Santa Cruz over the years
Precipitation charts
These charts show the average amount of precipitation in December in Santa Cruz, California. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in December in Santa Cruz
Total precipitation in December in Santa Cruz over the years
Daily UV index in December in Santa Cruz
This chart shows the average daily UV index in December in Santa Cruz, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in December in Santa Cruz
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Average weather in Santa Cruz by month
Click on a month below to see detailed weather info for Santa Cruz. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.