Honolulu County, HI: Current UV Index and Hourly Forecast

As of 12:32 AM HST on September 12, 2025, all 53 cities in Honolulu County, HI in our database have a UV Index reading of 0, indicating no radiation from the sun.

Over the next 24 hours, the highest UV Index reading in Honolulu County, HI is expected to be 10.7 in Pearl City between 1:00 PM - 2:00 PM HST today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Honolulu County, HI as of 12:32 AM HST, September 12, 2025

Current UV Index in Cities in Honolulu County, HI

12:32 AM HST, September 12, 2025