Weather in Santiago in December
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Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youIn December, Santiago sees average highs of 29.2°C (84.6°F) and lows of 13.8°C. Conditions are hot and very dry, with roughly 13.4 hours of sunshine a day. It is one of the best months of the year to visit. For the complete picture, see the best time to visit Santiago — every month compared. Once you know when to go, find your Santiago packing list at 247PackingList.
Get ready for Santiago in December
Search flights to Santiago
Compare 100+ airlines for December — one search, best price.
Search Flights →Hot-weather travel clothing
Sun protection, lightweight layers and a reusable water bottle are essential here.
Check Price →What to pack for Santiago in December
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
Compare all months in Santiago
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 29.7°C | 18.3mm | 10/10 |
| February | 29.6°C | 3.2mm | 10/10 |
| March | 28.3°C | 2.3mm | 10/10 |
| April | 24.0°C | 20.4mm | 10/10 |
| May | 19.7°C | 13.2mm | 10/10 |
| June | 15.5°C | 82.8mm | 10/10 |
| July | 15.1°C | 61.5mm | 10/10 |
| August | 16.4°C | 74.3mm | 10/10 |
| September | 18.2°C | 37.8mm | 10/10 |
| October | 22.6°C | 13.4mm | 10/10 |
| November | 25.8°C | 10.8mm | 10/10 |
| December | 29.2°C | 2.4mm | 10/10 |
Full month-by-month guide: best time to visit Santiago →
For facts about Chile — currency, language and dialling code — see our Chile country guide at 247CountryInfo. Travellers also find it useful to keep a Santiago travel guide to hand. Check clothing sizes in Chile before you shop.
Frequently Asked Questions
Is December a good time to visit Santiago?
December rates 10/10 for visiting Santiago — excellent time to visit. Expect average highs of 29.2°C, 2.4mm of rain across the month and about 13.4 hours of daily sunshine.
What is the temperature in Santiago in December?
In December, Santiago has average highs of 29.2°C (84.6°F) and average lows of 13.8°C (56.8°F).
Does it rain in Santiago in December?
Rarely. December is one of the driest times of year in Santiago, averaging only 2.4mm of rain.
What should I wear in Santiago in December?
For Santiago in December (29.2°C highs / 13.8°C lows), pack light layers plus sunscreen, t-shirts and light trousers or shorts.
More essentials for Santiago in December
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.