UV Index Today in Honolulu County, Hawaii (HI)

Friday, August 14, 2026 -8:20 PM HST (GMT-10)

The average maximum UV Index today across 53 locations in Honolulu County, Hawaii (HI), is 12.7. The highest projected maximum is 12.8 in Pearl City at 12:00 PM HST, while the lowest projected maximum is 12.5 in Urban Honolulu at 12:00 PM HST.

Tomorrow, the average maximum UV Index across those same locations is expected to be 10.6. The highest projected maximum is 12.1 in Ewa Gentry at 12:00 PM HST, and the lowest projected maximum is 9.2 in Pearl City at 12:00 PM HST.

53 Places in Honolulu County, Hawaii (HI)

Maximum UV Index Today
  • Urban Honolulu - 12.5