UV Index for Hilo, HI

Current Hilo UV Index

0.3 (Low)

Last Updated 9 minutes ago

Hourly Hilo UV Index

The hourly Hilo, HI UV Index forecast for Monday, September 15th, 2025.

5 Day Hourly Hilo UV Index Forecast

Last Updated 23 hours ago

The UV index forecast for the next five days in Hilo, HI has 3 days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Hilo over the next five days will be 14.2 on Wednesday, September 17th at 12:00 pm.

The UV index forecast for Monday, September 15th in Hilo, HI is below.

Time UV Index Risk
8am 1.7
Low
9am 4.4
Moderate
10am 8.2
Very High
11am 11.5
Extreme
12pm 13.9
Extreme
1pm 13.8
Extreme
2pm 11
Extreme
3pm 6
High
4pm 2.9
Low
5pm 0.7
Low
6pm 0.1
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, September 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 0.3
Low
8am 1.7
Low
9am 4.6
Moderate
10am 8.4
Very High
11am 12
Extreme
12pm 14.1
Extreme
1pm 13.6
Extreme
2pm 9.4
Very High
3pm 4.6
Moderate
4pm 2.4
Low
5pm 1
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 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 0.3
Low
8am 1.7
Low
9am 4.6
Moderate
10am 8.4
Very High
11am 12.1
Extreme
12pm 14.2
Extreme
1pm 13.9
Extreme
2pm 11.3
Extreme
3pm 7.4
High
4pm 3.2
Moderate
5pm 1
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 Hilo, HI is below.

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