UV Index Today in Arizona (AZ)

Friday, May 22, 2026 -11:37 AMMST (GMT-7)

The average maximum UV Index today across 279 locations in Arizona (AZ), is 9.5. The highest projected maximum is 10.4 in McNary at 12:00 PM MST, while the lowest projected maximum is 8.6 in Teec Nos Pos at 12:00 PM MST.

Tomorrow, the average maximum UV Index across those same locations is expected to be 9.7. The highest projected maximum is 10.4 in Eagar at 12:00 PM MST, and the lowest projected maximum is 9 in San Luis at 1:00 PM MST.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

15 Counties in Arizona (AZ)

Average Maximum UV Index Today
  • Maricopa County - 9.4
  • Pima County - 9.4
  • Pinal County - 9.3
Data Source: National Oceanic and Atmospheric Administration (NOAA)

279 Places in Arizona (AZ)

Maximum UV Index Today
  • Chandler - 9.2
  • Gilbert - 9.2
  • Glendale - 9.4
  • Mesa - 9.3
  • Phoenix - 9.3
  • Tucson - 9.3
Data Source: National Oceanic and Atmospheric Administration (NOAA)