- Kids stay & eat for free at Marriot Bonvoy
- Destinations include Europe, Middle East & Africa
- Valid for up to 2 adults & 2 kids aged up to 12
San Antonio weather in May 2025
Expect 30°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in San Antonio in May. Check more long-term weather averages for San Antonio in May before you book your next holiday to Texas in 2025/2026.
- 3030°C max day temperature
- 7 hours of sunshine per day
- 88 days with some rainfall
- 1919°C min night temperature
- 1414 hours of daylight per day
- HHigh heat & humidity
- 9494 mm of monthly rainfall
- 1111 (Extreme) UV index
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Recommended for San Antonio
The May weather guide for Texas (San Antonio) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about the USA
How hot is it in San Antonio in May?
Daytime temperatures usually reach 30°C in San Antonio in May with high heat and humidity, falling to 19°C at night.
How sunny is it in San Antonio in May?
There are normally 7 hours of bright sunshine each day in San Antonio in May - that's 52% of daylight hours.
Does it rain in San Antonio in May?
There are usually 8 days with some rain in San Antonio in May and the average monthly rainfall is 94mm.
San Antonio May sunrise & sunset times
Browse the sunrise and sunset times for San Antonio in May 2025. Select a month to view San Antonio sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Thursday, 1st May 2025 | 05:52 | 19:11 |
Friday, 16th May 2025 | 05:41 | 19:20 |
Saturday, 31st May 2025 | 05:35 | 19:29 |
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