UV Index Today in Hawaii (HI)

Saturday, August 29, 2026 -6:46 AM GMT-10 (GMT-10)

The average maximum UV Index today across 140 locations in Hawaii (HI), is 12. The highest projected maximum is 13.4 in Mountain View at 12:00 PM GMT-10, while the lowest projected maximum is 9.7 in Hana at 12:00 PM GMT-10.

Tomorrow, the average maximum UV Index across those same locations is expected to be 11.2. The highest projected maximum is 12.7 in Pearl City at 12:00 PM GMT-10, and the lowest projected maximum is 4.1 in Hawaiian Paradise Park at 3:00 PM GMT-10.

4 Counties in Hawaii (HI)

Average Maximum UV Index Today

140 Places in Hawaii (HI)

Maximum UV Index Today
  • Urban Honolulu - 11.8