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Santa Cruz Weather in December
With daytime temperatures of 29°C (84°F) and nighttime lows of 12°C (54°F), December in Santa Cruz brings high temperatures during the day. The excellent weather makes it an appealing time to visit.
Rainfall in Santa Cruz in December
Typically around 3 days of rainfall are expected, averaging 9.1 mm (0.4 in) for the month. When rain does fall, showers tend to be light and brief. Most days will be dry.
Temperature in Santa Cruz in December
December tends to be one of the excellent months in Santa Cruz, with 29°C (84°F) in the afternoon and 12°C (54°F) overnight. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 12°C (54°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Santa Cruz in December
The month enjoys around 318 hours of sunshine, creating mostly sunny days with good weather conditions.If you favor pleasant temperatures and minimal rainfall, December is one of the best months to visit Santa Cruz.
Santa Cruz Temperature in December
Min Temperature
12°C (54°F)
Max Temperature
29°C (84°F)
Chance of Rain
9%
Precipitation
9.1 mm (0.4 in)
Rainy days
3 days
Humidity
66% *
Sunshine
318 hours *
Percentage Sunshine
*
* Data from: Curicó, Chile (29 KM, 18 Miles).
Santa Cruz Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Santa Cruz - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Santa Cruz typically stay consistent throughout December, with daily highs averaging around 29°C (84°F). Nights are cool, with lows typically ranging from 12°C (54°F) to 14°C (57°F).
Average temperatures in December
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather records for Santa Cruz in December
Browse day-by-day weather records for Santa Cruz spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Santa Cruz historical weather extremes in December
The extremes listed below come from historical weather data collected in Santa Cruz from 2001 through 2025.
- The warmest day in December was on December 31, 2025, with a maximum of 38°C (100°F).
- The coldest December day was on December 11, 2010, with a maximum of 14°C (57°F).
- Nighttime temperatures dropped to 5°C (41°F) on December 12, 2010, marking the coldest December night on record.
Best Places in Chile in December
Find out more about the weather in Chile and which places have the best travel conditions in this month. See all of Chile in December →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Santa Cruz in December
Warm temperatures in December make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. With minimal rainfall expected, you can leave the rain gear at home. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Santa Cruz in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Swimming10/10 -
Cycling8/10 -
Walking8/10 -
Barbeque10/10 -
Camping10/10 -
Outdoor sports8/10
Santa Cruz 3-Day Forecast
More climate data for Santa Cruz
Temperature Rainfall Sunshine Humidity
See the full Santa Cruz climate overview or explore weather in Chile.
Popular in December
Where to go in December - average daytime high across popular destinations.
Santiago
26°C (79°F) San Pedro de Atacama
25°C (77°F) La Serena
23°C (73°F) Hanga Roa24°C (75°F) Viña del Mar20°C (68°F) Pucón
19°C (66°F) Valparaíso19°C (66°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The 10 most alternative cities in South America
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