Rancagua Weather in December
December in Rancagua brings high temperatures, with highs of 26°C (79°F) and nights dropping to 11°C (52°F). Rainfall is very low this month, averaging just 14 mm (0.6 in).
Rainfall in Rancagua in December
Rain is expected on roughly 4 days, totalling around 14 mm (0.6 in) for the month. Rain is scarce this month and when it does fall, it tends to be light. Unlikely to disrupt plans significantly.
Temperature in Rancagua in December
December is one of the better months to visit Rancagua. Expect 26°C (79°F) during the day and 11°C (52°F) at night. December is in the summer season. Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 11°C (52°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.If you favor pleasant temperatures and minimal rainfall, December is one of the best months to visit Rancagua.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Chile, check out our Rancagua's climate page.
Rancagua Temperature in December
Min Temperature
11°C (52°F)
Max Temperature
26°C (79°F)
Chance of Rain
12%
Precipitation
14 mm (0.6 in)
Rainy days
4 days
Historical weather for Rancagua in December
Browse day-by-day weather records for Rancagua spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Rancagua historical weather extremes in December
Our historical data for Rancagua spans 2004 to 2025, revealing these weather extremes.
- The hottest December day on record in Rancagua reached 36°C (97°F) (December 31, 2025).
- Rancagua experienced its chilliest December day on December 20, 2014, reaching only 12°C (54°F).
- The coldest night in December in Rancagua was on December 1, 2014, with a minimum of 3°C (37°F).
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
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tolerable
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What to Wear in Rancagua in December
Warm but pleasant conditions in Rancagua in December. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Dry conditions mean you won't need to worry about rain protection.What To Do in Rancagua in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Chile, check out our Rancagua's climate page.
See the full Rancagua climate overview or explore weather in Chile.
