Normal weather for Santiago in December
It's warm in December in Santiago with an average temperature of 28°C. Temperatures this month range from a low of 27°C to a high of 29°C. At night, you can expect temperatures between 21°C and 23°C.
According to weather history, there is only 5,5 mm of precipitation in December. The wind speed is around 5 Bft, mostly coming from the Northeast.
Santiago in December |
UK | ||
|---|---|---|---|
 Average Temperature |
28°C | 9°C | |
 High Temp |
29°C | 11°C | |
| Low Temp |
27°C | 8°C | |
 Total Precipitation |
5,5 mm | 67 mm | |
| Rainy Days |
2 days | 10 days | |
Start of December
The month of December starts in Santiago with hot temperatures, averaging around 29°C during the day and nights close to 23°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Since temperatures can differ between day and night, it’s a good idea to dress in layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. In the evening and morning, a T-shirt, light trousers or skirt, and a light jacket are recommended.
Mid-December
By mid-December, the average daytime temperature drops to around 28°C, with nights close to 23°C. Not much precipitation expected during this period. It’s mostly dry with sunshine.
Temperatures vary between day and night, so it’s smart to wear layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. In the evening and morning, a T-shirt, light trousers or skirt, and a light jacket are recommended.
End of December
By the end of December, the average daytime temperature in Santiago will be around 29°C, with nights close to 22°C. Barely any chance of precipitation. The weather will mostly be dry with lots of sunshine.
As it gets cooler in the evening, it’s best to wear layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. In the evening and morning, a T-shirt, light trousers or skirt, and a light jacket are recommended.
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UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is December a good time to visit Santiago?
Want nice weather? Then December is a great time to be in Santiago. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for Santiago in December
With 34°C, Santiago hit the highest temperature in the last 10 years in December 2018. The lowest daytime temperature in this month was 23°C in 2021. The extreme night temperatures ranged from a low of 17°C to a high of 25°C.
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Daily Temperature in December in Santiago
This chart shows the average daily temperatures, both day and night, for each day in December in Santiago, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in December in Santiago
The chart below shows the average daily precipitation in December for Santiago, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for December, you can expect around 2 days of rain in Santiago.
Daily UV Index in December in Santiago
This chart shows the average daily UV index in December in Santiago, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in December in Santiago Over the Years
This chart shows the average temperature in December in Santiago, measured in degrees Celsius, over the past years.
Total Precipitation in December in Santiago Over the Years
This chart shows the average precipitation in December in Santiago, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in December for Santiago
Click on a specific day in December for detailed info on the typical weather on that day in Santiago. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in December in Santiago
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Average Weather in Santiago by Month
Click on a month below to see detailed weather info for Santiago. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
