Kaunakakai, 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 Kaunakakai, Maui 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
1:56 PM HST

12.4Risk: Extreme

(Updated 56 minutes ago.)

As of 1:56 PM HST, the UV Index in Kaunakakai, HI is 12.4 (Extreme).
The UV Index is expected to fall sharply to 10.7 (still Extreme) between 2:00 PM - 3:00 PM HST today.

Hourly UV Index Forecast for Today
Sunday, July 12, 2026

3 AM6 AM9 AM12 PM3 PM6 PM9 PMHawaii-Aleutian Standard Time (HST)012345678910111213Current Time: 1:56 PM, HST

UV Index Data sourced from the NOAA.


As of 1:56 PM HST today in Kaunakakai, HI, the UV Index is currently at its highest level for the day, 12.4, which is classified as extreme risk. As the day progresses, the UV index is expected to fall as the sun sets.

It will return to very high levels at 3:00 PM and then drop to low levels again from 5:00 PM onwards. 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 Kaunakakai, HI

Today

Time RangeUV IndexRisk
3:00 AM - 9:00 AM (HST)0 - 1.8
Low
9:00 AM - 10:00 AM4.2
Moderate
10:00 AM - 11:00 AM6.6
High
11:00 AM - 12:00 PM9.9
Very High
12:00 PM - 3:00 PM10.7 - 12.4
Extreme
3:00 PM - 4:00 PM7.7
Very High
4:00 PM - 5:00 PM4.2
Moderate
5:00 PM - 12:00 AM0 - 1.8
Low

Tomorrow

Time RangeUV IndexRisk
12:00 AM - 9:00 AM (HST)0 - 1.7
Low
9:00 AM - 10:00 AM4
Moderate
10:00 AM - 11:00 AM6.7
High
11:00 AM - 12:00 PM10
Very High
12:00 PM - 2:00 PM10.8 - 11.3
Extreme
2:00 PM - 3:00 PM10.2
Very High
3:00 PM - 4:00 PM6.9
High
4:00 PM - 5:00 PM4
Moderate
5:00 PM - 12:00 AM0 - 1.4
Low

Detailed Hourly Kaunakakai UV Index Forecast for the next 5 days

Download CSV (Excel) ↓
TimeUV IndexRisk
1:00 PM - 2:00 PM (Now, HST)12.4
Extreme
2:00 PM - 3:00 PM 10.7
Extreme
3:00 PM - 4:00 PM 7.7
Very High
4:00 PM - 5:00 PM 4.2
Moderate
5:00 PM - 6:00 PM 1.8
Low
6:00 PM - 7:00 PM 0.5
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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