Honaunau-Napoopoo, HI: Current UV Index and Hourly Forecast

On this page, you can find the current UV Index and hourly 5 day UV Index forecast for Honaunau-Napoopoo, Hawaii County, Hawaii (HI). The Ultraviolet Index forecast, which measures the radiation from the sun that reaches the Earth's surface is updated daily.

Current UV Index
5:23 PM HST

0.9Risk: Low

(Updated 23 minutes ago.)

As of 5:23 PM HST, the UV Index in Honaunau-Napoopoo, HI is 0.9 (Low).
The UV Index is expected to fall to 0.2 (still Low) between 6:00 PM - 7:00 PM HST today.

Hourly UV Index Forecast for Today
Monday, June 22, 2026

3 AM6 AM9 AM12 PM3 PM6 PM9 PMHawaii-Aleutian Standard Time (HST)012345678910111213Current Time: 5:23 PM, HST

UV Index Data sourced from the NOAA.

As of 5:23 PM HST today in Honaunau-Napoopoo, HI, the UV Index is currently at a low level of 0.9. As the day progresses, the UV index is expected to fall as the sun sets.

The UV Index will return to low levels of 0.2 at 6:00 PM. As the day transitions into the night, the UV Index will drop back down to 0 at 7:00 PM.

Summary of Hourly UV Index Forecast for Today and Tomorrow in Honaunau-Napoopoo, HI

Today

Time RangeUV IndexRisk
3:00 AM - 9:00 AM (HST)0 - 2.3
Low
9:00 AM - 10:00 AM5.2
Moderate
10:00 AM - 11:00 AM8.7
Very High
11:00 AM - 2:00 PM11.3 - 12.7
Extreme
2:00 PM - 4:00 PM6.3 - 7.1
High
4:00 PM - 5:00 PM2.8
Moderate
5:00 PM - 12:00 AM0 - 0.9
Low

Tomorrow

Time RangeUV IndexRisk
12:00 AM - 9:00 AM (HST)0 - 2.3
Low
9:00 AM - 10:00 AM5.1
Moderate
10:00 AM - 11:00 AM8.5
Very High
11:00 AM - 1:00 PM11.1 - 11.5
Extreme
1:00 PM - 2:00 PM6.3
High
2:00 PM - 4:00 PM3.5 - 4
Moderate
4:00 PM - 12:00 AM0 - 1.3
Low

Detailed Hourly Honaunau-Napoopoo UV Index Forecast for the next 5 days

Download CSV (Excel) ↓
TimeUV IndexRisk
5:00 PM - 6:00 PM (Now, HST)0.9
Low
6:00 PM - 7:00 PM 0.2
Low
7:00 PM - 8:00 PM 0
Low
8:00 PM - 9:00 PM 0
Low
9:00 PM - 10:00 PM 0
Low
10:00 PM - 11:00 PM 0
Low
11:00 PM - 12:00 AM 0
Low

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