UV Index Today in Arizona (AZ)
Saturday, August 29, 2026 -9:46 AM MST (GMT-7)
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The average maximum UV Index today across 279 locations in Arizona (AZ), is 10.2. The highest projected maximum is 11.5 in Naco at 12:00 PM MST, while the lowest projected maximum is 8.4 in Kayenta at 1:00 PM MST.
Tomorrow, the average maximum UV Index across those same locations is expected to be 9.8. The highest projected maximum is 11.2 in Tombstone at 12:00 PM MST, and the lowest projected maximum is 6 in Fort Defiance at 1:00 PM MST.
15 Counties in Arizona (AZ)
Average Maximum UV Index Today
279 Places in Arizona (AZ)
Maximum UV Index Today