UV Index for Hilo, HI

Current Hilo UV Index

0 (Low)

Last Updated 12 minutes ago

Hourly Hilo UV Index

The hourly Hilo, HI UV Index forecast for Wednesday, October 15th, 2025.

5 Day Hourly Hilo UV Index Forecast

Last Updated 14 hours ago

The UV index forecast for the next five days in Hilo, HI has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Hilo over the next five days will be 10.4 on Wednesday, October 15th at 12:00 pm.

The UV index forecast for Wednesday, October 15th in Hilo, HI is below.

Time UV Index Risk
11pm 0
Low

The UV index forecast for Thursday, October 16th in Hilo, 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 0.8
Low
9am 2.5
Low
10am 5
Moderate
11am 7.4
High
12pm 9.4
Very High
1pm 9.2
Very High
2pm 5.6
Moderate
3pm 4.5
Moderate
4pm 2
Low
5pm 0.5
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, October 17th in Hilo, 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 1
Low
9am 2.9
Low
10am 5.5
Moderate
11am 8.2
Very High
12pm 9.6
Very High
1pm 6.4
High
2pm 3.8
Moderate
3pm 2.7
Low
4pm 1.5
Low
5pm 0.5
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, October 18th in Hilo, HI is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
6am 0
Low
7am 0.1
Low
8am 0.9
Low
9am 2.8
Low
10am 5.6
Moderate
11am 8.1
Very High
12pm 8.6
Very High
1pm 7.4
High
2pm 4.8
Moderate
3pm 2.4
Low
4pm 1.2
Low
5pm 0.5
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 Hilo, HI is below.

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