Get the monthly weather forecast for San Antonio, TX, including daily high/low, historical averages, to help you plan ahead.

May weather in San Antonio Texas, United States. Daily high temperatures increase by 5°F, from 84°F to 90°F, rarely falling below 77°F or exceeding 97°F.

There is a 59% chance of a perfect sunny day and a 41% chance of seeing some clouds, with on average 1mm of rainfall this month.

The thermometer dips to 60 °F (16 °C) or below on an average of 5 nights. May does not normally get as cold as 40 °F (4 °C).

Get the monthly weather forecast for San Antonio, NM, including daily high/low, historical averages, to help you plan ahead.

Typically, May in San Antonio includes very high temperatures and high rainfall. The temperature during the day can rise to approximately 31°C. At night, it ...

Weather.com brings you the most accurate monthly weather forecast for San Antonio, TX with average/record and high/low temperatures, precipitation and more.

Daily high temperatures increase by 5°F, from 84°F to 89°F, rarely falling below 77°F or exceeding 96°F.

May weather forecast in San Antonio ; 1 May. Wednesday. +17° ; 2 May. Thursday. +19° ; 3 May. Friday. +20° ; 4 May. Saturday. +19° ; 5 May. Sunday. +19°.