UV Index for Honolulu, HI

Current Honolulu UV Index

0 (Low)

Last Updated 9 minutes ago

Hourly Honolulu UV Index

The hourly Honolulu, HI UV Index forecast for Thursday, December 18th, 2025.

5 Day Hourly Honolulu UV Index Forecast

Last Updated 23 hours ago

The UV index forecast for the next five days in Honolulu, HI has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Honolulu over the next five days will be 6.6 on Thursday, December 18th at 12:00 pm.

The UV index forecast for Thursday, December 18th in Honolulu, HI is below.

Time UV Index Risk
8am 0.3
Low
9am 1.4
Low
10am 3.2
Moderate
11am 5.2
Moderate
12pm 6.6
High
1pm 6.6
High
2pm 5.4
Moderate
3pm 3.4
Moderate
4pm 1.6
Low
5pm 0.4
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, December 19th in Honolulu, 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 0.3
Low
9am 1.4
Low
10am 3
Moderate
11am 4.7
Moderate
12pm 6.4
High
1pm 6.4
High
2pm 5.3
Moderate
3pm 3.4
Moderate
4pm 1.5
Low
5pm 0.4
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, December 20th in Honolulu, 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 0.3
Low
9am 1.4
Low
10am 3.2
Moderate
11am 5.1
Moderate
12pm 6.4
High
1pm 6.5
High
2pm 5.3
Moderate
3pm 3.4
Moderate
4pm 1.5
Low
5pm 0.4
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, December 21st in Honolulu, HI is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
View Historical UV Index Data