UV Index for Koloa, HI

Current Koloa UV Index

0 (Low)

Last Updated 23 seconds ago

Hourly Koloa UV Index

The hourly Koloa, HI UV Index forecast for Friday, October 17th, 2025.

5 Day Hourly Koloa UV Index Forecast

Last Updated 10 hours ago

The UV index forecast for the next five days in Koloa, HI has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Koloa over the next five days will be 8.5 on Sunday, October 19th at 1:00 pm.

The UV index forecast for Friday, October 17th in Koloa, HI is below.

Time UV Index Risk
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, October 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
Low
8am 0.5
Low
9am 2
Low
10am 3.8
Moderate
11am 5.9
Moderate
12pm 7.9
High
1pm 8.4
Very High
2pm 7.3
High
3pm 5
Moderate
4pm 2.5
Low
5pm 0.8
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, October 19th 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
Low
8am 0.5
Low
9am 2
Low
10am 4.2
Moderate
11am 6.6
High
12pm 8.3
Very High
1pm 8.5
Very High
2pm 7.2
High
3pm 4.9
Moderate
4pm 2.5
Low
5pm 0.8
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, October 20th 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
Low
8am 0.5
Low
9am 1.9
Low
10am 4.1
Moderate
11am 6.5
High
12pm 8.2
Very High
1pm 8.4
Very High
2pm 7
High
3pm 4.8
Moderate
4pm 2.4
Low
5pm 0.8
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, October 21st in Koloa, HI is below.

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