UV Index Today in Hays County, Texas (TX)
Friday, May 22, 2026 -1:39 PMCDT (GMT-5)
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The average maximum UV Index today across 17 locations in Hays County, Texas (TX), is 9.1. The highest projected maximum is 9.2 in San Marcos at 1:00 PM CDT, while the lowest projected maximum is 8.9 in Canyon Lake at 1:00 PM CDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 6.7. The highest projected maximum is 7.8 in Austin at 12:00 PM CDT, and the lowest projected maximum is 5 in Canyon Lake at 11:00 AM CDT.
17 Places in Hays County, Texas (TX)
Maximum UV Index Today