Castro Weather in December
What's the weather like in Castro (Los Lagos) in December 2025?
The climate in Castro during December can be summarized as mild and damp.
December is in the summer in Castro and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 15°C (59°F), whilst at night 9°C (48°F) is normal.
| Daytime temperature | 15.2°C 59.3°F |
|---|---|
| Nightly temperature | 8.9°C 47.9°F |
| Average temperature | 12°C 53.6°F |
| Daily sunshine | 10.5 hrs |
| Avg rainfall | 110 mm 4.3 ins |
| Rainy days | 3 days |
| Sea temperature | 13.7°C 56.7°F |
| Humidity | 80% |
| Windspeed | 22.3kph 14 mph |
On average December is the 4th driest month of the year in Castro with around 110mm 4.3 inches of rain making it a damp time to visit. This rainfall is typically spread over 3 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.5 hours of sunshine per day.
December temperatures in Castro
December rainfall
December hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Castro in December 2025.
Other monthly averages
Best places to visit in December
Castro weather stats
| Hottest month: | January | 16.5°C 61.7°F |
|---|---|---|
| Driest month: | January | 77mm 3ins |
| Sunniest month: | February | 10hrs |
| Coldest month: | July | 9.5°C 49.1°F |
| Wettest month: | June | 367mm 14.4ins |
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