San Antonio Weather in December

December in San Antonio typically sees daytime highs of 21°C (70°F) and nighttime lows of 13°C (55°F). Minimal rainfall is typical for this month.

Rainfall in San Antonio in December

Past climate data indicates that roughly 2 days will see rain, totalling around 3.7 mm (0.1 in) for the month. On the rare occasion it rains this month, it usually amounts to very little.

Temperature in San Antonio in December

If you're visiting San Antonio in December, expect perfect temperatures with highs of 21°C (70°F) and overnight lows of 13°C (55°F). Conditions are often most pleasant around the middle of the day. At 13°C (55°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in San Antonio in December

Expect sunny days throughout the month, with an estimated 265 hours of sunshine. This makes it a pleasant time to visit San Antonio.

If you favor pleasant temperatures and minimal rainfall, December is one of the best months to visit San Antonio.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Chile, check out our San Antonio's climate page.

San Antonio Temperature in December

Min Temperature 13°C (55°F)  

Max Temperature 21°C (70°F)  

Chance of Rain 6%  

Precipitation 3.7 mm (0.1 in)  

Rainy days 2 days  

Humidity 70% *  

Sunshine 265 hours *  

Percentage Sunshine *  

* Data from: Valparaíso, Chile (59 KM, 37 Miles).

What to Wear in San Antonio in December

Comfortable temperatures call for an easy wardrobe in December. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Dry conditions mean you won't need to worry about rain protection. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in San Antonio in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

10/10

Walking

10/10

Barbeque

9/10

Camping

10/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Chile, check out our San Antonio's climate page.

More climate data for San Antonio

Temperature Rainfall Sunshine Humidity

See the full San Antonio climate overview or explore weather in Chile.