Chile (Santiago)
December
Weather in Chile for December 2025
Your guide to Chile weather in December - trends and predictions
So far, December 2025 in Chile is slightly warmer than the historical average by 1.1 °C.
The forecast for the next days in Chile predicts temperatures to be around 31 °C, close to the historical average.
In general, the average temperature in Chile at the beginning of December is 21.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 31.4 °C by the end of December.
Precipitation in Chile during December is a rare event, with an average of fewer than 2 rainy days.
Temperatures
Rain 🌧️
30
Dry days
1
Rainy days
0
Snow days
23°/11°
Temperatures
18 km/h
Avg max wind
34 %
Avg humidity
Chile Weather December
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What’s the Weather Like in Chile This December?
Discover the average temperatures and weather trends across Chile’s cities this December.
Temperatures trend during December in Chile
See the weather trend as well as the moving average line
December weather in Chile day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Sunny | 20° /8° | 0 mm | 7 | |
| 2 Dec. | Sunny | 20° /8° | 0 mm | 7 | |
| 3 Dec. | Sunny | 22° /9° | 0 mm | 8 | |
| 4 Dec. | Sunny | 22° /10° | 0 mm | 8 | |
| 5 Dec. | Sunny | 21° /8° | 0 mm | 7 | |
| 6 Dec. |  Overcast | 22° /10° | 0.4 mm | 7 | |
| 7 Dec. | Sunny | 24° /12° | 0.1 mm | 7 | |
| 8 Dec. | Sunny | 23° /11° | 0 mm | 8 | |
| 9 Dec. | Sunny | 26° /12° | 0 mm | 9 | |
| 10 Dec. |  Partly cloudy | 26° /14° | 0 mm | 8 | |
| 11 Dec. | Sunny | 23° /11° | 0.6 mm | 8 | |
| 12 Dec. | Sunny | 25° /10° | 0 mm | 8 | |
| 13 Dec. | Sunny | 25° /11° | 0.1 mm | 8 | |
| 14 Dec. | Partly cloudy | 20° /9° | 1.9 mm | 7 | |
| 15 Dec. | Sunny | 23° /10° | 0 mm | 8 | |
| 16 Dec. | Sunny | 25° /11° | 0 mm | 8 | |
| 17 Dec. | Sunny | 22° /10° | 0 mm | 8 | |
| 18 Dec. | Sunny | 23° /10° | 0 mm | 8 | |
| 19 Dec. | Sunny | 23° /10° | 0.1 mm | 8 | |
| 20 Dec. | Sunny | 27° /15° | 0.1 mm | 3.5 | |
| 21 Dec. | Sunny | 27° /15° | 0.1 mm | 2.8 | |
| 22 Dec. | Sunny | 29° /14° | 0 mm | 3.3 | |
| 23 Dec. | Sunny | 32° /14° | 0 mm | 3.5 | |
| 24 Dec. | Sunny | 33° /15° | 0 mm | 0.3 | |
| 25 Dec. | Sunny | 32° /16° | 0 mm | 9 | |
| 26 Dec. | Sunny | 29° /16° | 0 mm | 9 | |
| 27 Dec. | Sunny | 30° /16° | 0 mm | 9 | |
| 28 Dec. | Sunny | 31° /15° | 0 mm | 9 | |
| 29 Dec. | Sunny | 32° /15° | 0 mm | 9 | |
| 30 Dec. | Sunny | 34° /16° | 0 mm | 9 | |
| 31 Dec. | Sunny | 32° /18° | 0 mm | 9 | |
| Next | |||||
Important Notice
Our weather forecast for Chile in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Chile forecast closer to your planned date for the most up-to-date weather information.
Change Month
Chile in December - FAQ
What are the expected maximum and minimum temperatures in Chile during December?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Chile during December?
Rainfall in Chile during December is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 1 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Chile during December?
The average wind speed in Chile during December is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
Chile water temperatures in December
The average water temperature of the Pacific Ocean near Chile in December is 14.3 °C. At the beginning of December temperatures are around 14.3 °C; by the end of the month they stay fairly steady and reach 14.2 °C.
- What is the water temperature in Chile in December?
- The average water temperature in Chile in December is 14.3 °C.
- Can you swim in Chile in December?
- Cold enough that you lose heat fast. A full 4–5 mm wetsuit (plus hood/gloves for comfort) is advisable for anything beyond a brief plunge.
December rainfall patterns in Chile
Explore the daily rainfall trends and prepare for Chiles December weather 💧
Typically, Chile has 1 rainy days in December with a total of 5.2 mm of rainfall.
UV exposure in Chile during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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