Month-by-month travel weather
San Antonio May weather
San Antonio, United States · May
Storms can bring short heavy rain
It can feel early-summer warm. Heavy rain bursts can interrupt plans.
May averages at a glance
Average low
around 19–21°C
Average high
around 32–34°C
Average precipitation
around 70–110 mm
Precip days
about 6–9 days
What to wear in May in San Antonio
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Breathable clothing
- • Optional rain option
Travel tips for visiting San Antonio in May
- • Plan shade and hydration if you’ll be outside for long stretches.
May weather in San Antonio — FAQ
Q. Does it rain all day in May?
A. Often it’s stormy bursts rather than all-day rain.
Explore San Antonio
These pages are connected so you can compare conditions and decide for yourself.