UV Index for Koloa, HI

Current Koloa UV Index

0 (Low)

Last Updated 43 minutes ago

Hourly Koloa UV Index

The hourly Koloa, HI UV Index forecast for Tuesday, September 16th, 2025.

5 Day Hourly Koloa UV Index Forecast

Last Updated 20 hours ago

The UV index forecast for the next five days in Koloa, HI has 3 days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Koloa over the next five days will be 11.2 on Wednesday, September 17th at 1:00 pm.

The UV index forecast for Tuesday, September 16th in Koloa, HI is below.

Time UV Index Risk
5am 0
Low
6am 0
Low
7am 0.1
Low
8am 1
Low
9am 2.9
Low
10am 5.8
Moderate
11am 8.8
Very High
12pm 10.8
Very High
1pm 11
Extreme
2pm 9.4
Very High
3pm 6.7
High
4pm 3.6
Moderate
5pm 1.4
Low
6pm 0.2
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, September 17th in Koloa, HI is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0.1
Low
8am 0.7
Low
9am 2.9
Low
10am 5.8
Moderate
11am 8.8
Very High
12pm 10.8
Very High
1pm 11.2
Extreme
2pm 9.5
Very High
3pm 6.7
High
4pm 3.6
Moderate
5pm 1.4
Low
6pm 0.2
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, September 18th in Koloa, HI is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0.1
Low
8am 0.9
Low
9am 2.9
Low
10am 5.8
Moderate
11am 8.8
Very High
12pm 10.8
Very High
1pm 11.1
Extreme
2pm 9.5
Very High
3pm 6.2
High
4pm 3.5
Moderate
5pm 1.3
Low
6pm 0.2
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, September 19th in Koloa, HI is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low