San Antonio Climate by Month
The temperature in San Antonio can vary greatly throughout the year.
The temperatures shift from very warm
to mild.
San Antonio has a dry climate with relatively low precipitation levels.
Now, let’s break down all the climate details for a clearer picture.
Average day and night temperature
Depending on the time of the year, temperatures range from very warm to moderate in San Antonio. Average daytime temperatures range from a very warm 31°C in August, the warmest time of the year, to a moderate 16°C during cooler months like February. At night, temperatures typically average around 11°C during these months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
With annual rainfall averaging 350 mm, San Antonio maintains relatively low precipitation levels throughout the seasons. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, November receives moderate rainfall, averaging 51 mm of precipitation, recorded across 11 rainy days. In contrast, the drier season, July brings less rainfall, with 3.3 mm over 3 rainy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Seasonal changes in sunshine hours are quite dramatic in San Antonio. While July receives considerable daily sunshine with up to 11.3 hours, December marks the darkest time of the year, where sunshine is scarce with only 5.1 hours of sunlight per day.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average water temperature
The mean water temperature over the year in San Antonio ranges from 14°C in February to 26°C in August.
Water temperature over the year
Average humidity
The relative humidity is moderate throughout the year in San Antonio.
Relative humidity over the year
The best time of year to visit San Antonio in Spain
During the months of April, May, 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 June, July and August are very dry.
August has an average maximum temperature of 31°C and is the warmest month of the year.
The coldest month is February with an average maximum temperature of 16°C.
November tops the wettest month list with 51 mm of rainfall.
July is the driest month with 3 mm of precipitation.
July is the sunniest month with an average of 340 hours of sunshine.
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.
