UV Index Today in Honolulu County, Hawaii (HI)
Sunday, September 20, 2026 -6:23 AM HST (GMT-10)
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The average maximum UV Index today across 53 locations in Honolulu County, Hawaii (HI), is 10.7. The highest projected maximum is 11.2 in Urban Honolulu at 12:00 PM HST, while the lowest projected maximum is 9.2 in Laie at 1:00 PM HST.
Tomorrow, the average maximum UV Index across those same locations is expected to be 11.5. The highest projected maximum is 11.6 in Pearl City at 1:00 PM HST, and the lowest projected maximum is 11.3 in Laie at 1:00 PM HST.
53 Places in Honolulu County, Hawaii (HI)
Maximum UV Index Today