December · Chile
Best time to visit Castro in December Weather, crowds & prices
Weather in Castro in December
Average temperature 12°C, 23 mm of rain, about 31 days with 6+ hours of sunshine and 79% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
9.1/10
Ranked #3 of 12 months
- Avg temp
- 12°C
- Rainfall
- 23 mm
- Humidity
- 79%
- Days with 6h+ sun
- 31
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
December in Castro scores 9.1/10 for sightseeing and cultural travel - one of the top 12-month picks (#3). Expect around 12°C, 23 mm of rain, and roughly 31 days with 6+ hours of sunshine this month.
Castro anchors Chiloé with colorful palafito stilt houses, wooden churches, and misty island ferry days. Best window: November through March in the Southern Hemisphere.
December ranks 3rd of 12 for Castro — one of the best windows
December averages 12°C (54°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Expect 23 mm of rain — occasional showers rather than washed-out days — alongside about 31 days with 6+ hours of sunshine and 15.1 daylight hours.
A 9.1/10 puts this among the year's best months in Castro (3rd of 12); only January scores higher, at 9.4/10.
Pack layers you can shed by midday plus one warm layer for the evening.
Figure on peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Castro in December?
- In December, Castro averages 12°C, 23 mm of rain, and about 31 days with 6+ hours of sunshine. Its climate-comfort score is 9.1/10.
- Is December a good time to visit Castro?
- December earns a 9.1/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Castro in December?
- Expect about 23 mm of rain in December. Average humidity is 79% and there are about 31 days with 6+ hours of sunshine.
Curated in Castro
Tickets & experiences
Things to do in Castro
Castro, Chile. Live activities and tours from GetYourGuide, matched to this destination.