UV Index for Kalaheo, HI

Current Kalaheo UV Index

6.8 (High)

Last Updated 12 minutes ago

Hourly Kalaheo UV Index

The hourly Kalaheo, HI UV Index forecast for Thursday, September 18th, 2025.

5 Day Hourly Kalaheo UV Index Forecast

Last Updated 7 hours ago

The UV index forecast for the next five days in Kalaheo, HI has 3 days reaching the extreme level and 1 day reaching the high or very high levels. The peak UV intensity in Kalaheo over the next five days will be 11.2 on Thursday, September 18th at 1:00 pm.

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

Time UV Index Risk
4pm 3.7
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 Friday, September 19th in Kalaheo, 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 0.9
Low
9am 2.8
Low
10am 5.6
Moderate
11am 8.7
Very High
12pm 10.8
Very High
1pm 11.2
Extreme
2pm 9.7
Very High
3pm 6.8
High
4pm 3.8
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 Saturday, September 20th in Kalaheo, 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 0.9
Low
9am 2.8
Low
10am 5.7
Moderate
11am 8.8
Very High
12pm 10.7
Very High
1pm 11
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 Sunday, September 21st in Kalaheo, 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 0.8
Low
9am 2.7
Low
10am 5.5
Moderate
11am 8.4
Very High
12pm 10.4
Very High
1pm 10.6
Very High
2pm 8.8
Very High
3pm 6
High
4pm 3.3
Moderate
5pm 1.2
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 Monday, September 22nd in Kalaheo, HI is below.

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