Is San Antonio hot in May?
Days are typically hot at 30.4°C, while nights average 18.8°C.
United States · 1991–2020 normal
San Antonio in
May.
Typical May weather in San Antonio: 30.4°C by day, 18.8°C at night, 83 mm of rain over 5.6 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high30.4°C
Typical low18.8°C
Rain83 mm
Wet days5.6
In the year-round weather comparison, May scores 63 out of 100 (April leads the year at 86). Daylight is calculated as 13 h 36 from latitude 29.42°.
May at a glance
What is San Antonio like in May?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 83 mm across about 6 wet days.
How much daylight is there?
There are about 13 h 36 between sunrise and sunset at mid-month, calculated from the place latitude.
Is May a good time to visit?
May ranks 6 of 12 in our weather comparison; April ranks first.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4726206
- NOAA station
- USC00417947 · SAN ANTONIO INCARNATE WORD
- Station distance
- 5.5 km from the place centre
- Coverage
- Good coverage · 21 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for San Antonio is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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