UV Index Today in Hays County, Texas (TX)
Sunday, September 20, 2026 -11:23 AM CDT (GMT-5)
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The average maximum UV Index today across 17 locations in Hays County, Texas (TX), is 9. The highest projected maximum is 9.4 in Canyon Lake at 2:00 PM CDT, while the lowest projected maximum is 8.8 in Austin at 2:00 PM CDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 9.4. The highest projected maximum is 9.5 in San Marcos at 2:00 PM CDT, and the lowest projected maximum is 9.3 in Austin at 1:00 PM CDT.
17 Places in Hays County, Texas (TX)
Maximum UV Index Today