UV Index for Honolulu, HI

Current Honolulu UV Index

0 (Low)

Last Updated 43 minutes ago

Hourly Honolulu UV Index

The hourly Honolulu, HI UV Index forecast for Saturday, August 23rd, 2025.

5 Day Hourly Honolulu UV Index Forecast

Last Updated 15 hours ago

The UV index forecast for the next five days in Honolulu, HI has 4 days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Honolulu over the next five days will be 12.6 on Monday, August 25th at 1:00 pm.

The UV index forecast for Saturday, August 23rd in Honolulu, HI is below.

Time UV Index Risk

The UV index forecast for Sunday, August 24th 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 0.3
Low
8am 1.4
Low
9am 3.8
Moderate
10am 7.2
High
11am 10.2
Very High
12pm 11.6
Extreme
1pm 11.8
Extreme
2pm 10.5
Very High
3pm 7.4
High
4pm 3.7
Moderate
5pm 1.5
Low
6pm 0.3
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, August 25th 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 0.2
Low
8am 1.2
Low
9am 3.3
Moderate
10am 7
High
11am 10.2
Very High
12pm 12.4
Extreme
1pm 12.6
Extreme
2pm 10.7
Very High
3pm 7.6
High
4pm 4.2
Moderate
5pm 1.6
Low
6pm 0.3
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, August 26th 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 0.3
Low
8am 1.5
Low
9am 3.9
Moderate
10am 7.3
High
11am 10.5
Very High
12pm 12.4
Extreme
1pm 12.6
Extreme
2pm 10.7
Very High
3pm 7.5
High
4pm 4.1
Moderate
5pm 1.4
Low
6pm 0.3
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, August 27th in Honolulu, HI is below.

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