San Antonio Weather and Climate: A Comprehensive Guide
San Antonio has pretty similar weather over the course of the year.
It is also known for its large amounts of rainfall.
Let's now guide you through the climate details for a complete overview.
Average maximum day and minimum night temperature
With minimal seasonal shifts, San Antonio experiences a constant climate year-round. Typically, average maximum daytime temperatures range from a pleasant 20°C in August to a pleasant 19°C in the coolest month, July.
Nights are cooler, with lows often dropping to around 10°C during the colder months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
San Antonio has a notably wet climate with abundant precipitation, recording 3431 mm of rainfall per year. The climate in San Antonio shows significant variation throughout the year. Expect heavy rainfall in April, with an average of 383 mm of precipitation over 18 rainy days. In contrast, August offers drier and sunnier days, with around 140 mm of rainfall over 5 rainy days. For more details, please visit our San Antonio Precipitation page.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
For those who appreciate different seasons, San Antonio serves as an ideal destination. Expect longer, more sun-filled days in August with an average of 8.6 hours of sunshine daily, and embrace the darker days in March, offering only 4.1 hours of daily sunlight. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Average humidity
The relative humidity is high throughout the year in San Antonio.
The city experiences its highest humidity in April, reaching 84%. In August, the humidity drops to its lowest level at 69%. 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 0 m/s to 1 m/s. It is lower in January, February, March, April, May, June, September, October, November and December and higher in July and August.
The mean monthly wind speed over the year (meters per second)
broken clouds and thunder broken clouds and thunder broken clouds and thunderForecast for San Antonio
3 m/s
3 m/s
3 m/s
Select a Month of Interest
Check the conditions for any month of the year.
The best time of year to visit San Antonio in Ecuador
San Antonio has moderate temperatures year round ranging between 18°C and 20°C. The average rainfall figures in San Antonio are quite high. Throughout the year, you have a chance of prolonged precipitation. So no matter what time of year you go, you will always have to deal with a high number of rainy days. This makes it more challenging to point out the best time of year to visit. If we needed to pick one month we would choose August which is the sunniest month of the year.Other facts from our historical weather data:
It has mild temperatures all year round ranging between 18°C and 20°C.
August has an average maximum temperature of 20°C and is the warmest month of the year.
The coldest month is July with an average maximum temperature of 19°C.
April tops the wettest month list with 383 mm of rainfall.
August is the driest month with 140 mm of precipitation.
August is the sunniest month with an average of 257 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.
