UV Index Today in Hawaii (HI)
Tuesday, October 13, 2026 -9:24 AM GMT-10 (GMT-10)
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The average maximum UV Index today across 140 locations in Hawaii (HI), is 8.4. The highest projected maximum is 11.4 in Honaunau-Napoopoo at 12:00 PM GMT-10, while the lowest projected maximum is 5.6 in Mountain View at 12:00 PM GMT-10.
Tomorrow, the average maximum UV Index across those same locations is expected to be 8.9. The highest projected maximum is 10.8 in Honaunau-Napoopoo at 12:00 PM GMT-10, and the lowest projected maximum is 7.7 in Hawaiian Paradise Park at 1:00 PM GMT-10.
4 Counties in Hawaii (HI)
Average Maximum UV Index Today
140 Places in Hawaii (HI)
Maximum UV Index Today