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Santiago weather in December 2025
Expect daytime maximum temperatures of 25°C in Santiago in December based on long-term weather averages. There are 10 hours of sunshine per day on average.
- 25°C max day temperature
25 - 10 hours of sunshine per day
- 4 days with some rainfall
4 - 13°C min night temperature
13 - 14 hours of daylight per day
14 - Low heat & humidity
L - 2 mm of monthly rainfall
2 - 11+ (Extreme) UV index
11
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The December weather guide for Chile (Santiago) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about Santiago
How hot is it in Santiago in December?
Daytime temperatures usually reach 25°C in Santiago in December with low heat and humidity, falling to 13°C at night.
How sunny is it in Santiago in December?
There are normally 10 hours of bright sunshine each day in Santiago in December - that's 73% of daylight hours.
Does it rain in Santiago in December?
There are usually 4 days with some rain in Santiago in December and the average monthly rainfall is 2mm.
Santiago December sunrise & sunset times
Browse the sunrise and sunset times for Santiago in December 2025. Select a month to view Santiago sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Monday, 1st December 2025 | 05:25 | 19:38 |
| Tuesday, 16th December 2025 | 05:27 | 19:49 |
| Wednesday, 31st December 2025 | 05:36 | 19:55 |
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