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San Antonio Weather and Climate: A Comprehensive Guide

The temperature in San Antonio can vary greatly throughout the year. The temperatures shift from warm to mild. It typically sees modest rainfall throughout the year. Let's now guide you through the climate details for a complete overview.

Average maximum day and minimum night temperature

Depending on the time of the year, temperatures range from comfortable to moderate in San Antonio. Typically, average maximum daytime temperatures range from a comfortable 29°C in January to a moderate 14°C in the coolest month, July.

Nights are cooler, with lows often dropping to around 4°C during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

With annual rainfall averaging 311 mm, San Antonio maintains relatively low precipitation levels throughout the seasons. San Antonio offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between March (33 mm) and December (17 mm) is not too significant, making the climate enjoyable for visitors and residents alike.

The mean monthly precipitation over the year, including rain, hail and snow

Average water temperature

The mean water temperature over the year ranges from 10°C in August to 18°C in January.

Water temperature over the year

Forecast for San Antonio

Monday
3 Feb
Clear sky
Clear sky
22°C
0 mm
Tuesday
4 Feb
Clear sky
Clear sky
21°C
0 mm
Wednesday
5 Feb
Fair
Fair
32°C
0 mm

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit San Antonio in Argentina

During the months of March, April, October and November you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Does San Antonio have a dry season?
    Yes, the months of August and December are very dry.
  • Which is the warmest month in San Antonio?
    January has an average maximum temperature of 29°C and is the warmest month of the year.
  • Which is the coldest month in San Antonio?
    The coldest month is July with an average maximum temperature of 14°C.
  • Which is the wettest month in San Antonio?
    March tops the wettest month list with 33 mm of rainfall.
  • Which is the driest month in San Antonio?
    December is the driest month with 17 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.