Waimea, 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 Waimea, 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
12:10 PM HST

9Risk: Very High

(Updated 10 minutes ago.)

As of 12:10 PM HST, the UV Index in Waimea, HI is 9 (Very High).
The UV Index is expected to fall to 7.8 (still Very High) between 1:00 PM - 2:00 PM HST today.

Hourly UV Index Forecast for Today
Thursday, June 18, 2026

3 AM6 AM9 AM12 PM3 PM6 PM9 PMHawaii-Aleutian Standard Time (HST)0123456789101112Current Time: 12:10 PM, HST

UV Index Data sourced from the NOAA.


As of 12:10 PM HST today in Waimea, HI, the UV Index is currently at a very high level of 9. As the day progresses, the UV index is expected to fall as the sun sets.

It will return to 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 Waimea, HI

Today

Time RangeUV IndexRisk
3:00 AM - 9:00 AM (HST)0 - 2.1
Low
9:00 AM - 10:00 AM4.8
Moderate
10:00 AM - 3:00 PM7.8 - 10.4
Very High
3:00 PM - 4:00 PM6.1
High
4:00 PM - 5:00 PM3.2
Moderate
5:00 PM - 12:00 AM0 - 1.1
Low

Tomorrow

Time RangeUV IndexRisk
12:00 AM - 9:00 AM (HST)0 - 1.6
Low
9:00 AM - 10:00 AM3.6
Moderate
10:00 AM - 11:00 AM6.7
High
11:00 AM - 12:00 PM10.6
Extreme
12:00 PM - 2:00 PM8.1 - 9.9
Very High
2:00 PM - 3:00 PM6.6
High
3:00 PM - 4:00 PM5
Moderate
4:00 PM - 12:00 AM0 - 2.3
Low

Detailed Hourly Waimea UV Index Forecast for the next 5 days

Download CSV (Excel) ↓
TimeUV IndexRisk
12:00 PM - 1:00 PM (Now, HST)9
Very High
1:00 PM - 2:00 PM 7.8
Very High
2:00 PM - 3:00 PM 7.9
Very High
3:00 PM - 4:00 PM 6.1
High
4:00 PM - 5:00 PM 3.2
Moderate
5:00 PM - 6:00 PM 1.1
Low
6:00 PM - 7:00 PM 0.3
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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