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
Average humidity
The relative humidity is moderate throughout the year in San Antonio.
The city experiences its highest humidity in June, reaching 69%. In January, the humidity drops to its lowest level at 47%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Average wind speed
The average wind speed over the year ranges from 3 m/s to 5 m/s. It is lower in April and higher in January, November and December.
The mean monthly wind speed over the year (meters per second)
Forecast for San Antonio
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:
Yes, the months of August and December are very dry.
January has an average maximum temperature of 29°C and is the warmest month of the year.
The coldest month is July with an average maximum temperature of 14°C.
March tops the wettest month list with 33 mm of rainfall.
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.