UV Index Today in Urban Honolulu, Hawaii (HI)

Friday, May 22, 2026 -8:40 AMHST (GMT-10)

The UV Index in Urban Honolulu, Hawaii (HI) right now is 1.6. This reading was last updated at 8:00 AM HST, about 40 minutes ago. The UV Index at9:00 AM HST, in about 19 minutes from now, is expected to be 3.9.

The maximum UV Index today in Urban Honolulu is expected to be 11 at 1:00 PM HST,4 hours and 19 minutes from now. The maximum UV Index tomorrow is expected to be 9.3 at 2:00 PM HST.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

May 22
11
1:00 PM HST
Extreme

Tomorrow

May 23
9.3
2:00 PM HST
Very High

UV Index Today Hourly

May 22

The UV Index for Urban Honolulu, Hawaii (HI) peaks at 11 today at 1:00 PM HST, classified as Extreme risk.

02468106 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMHawaii-Aleutian Standard Time (HST, GMT-10)Now: 8:40 AM00.41.63.96.78.610.3119.56.841.70.40
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

May 23

Weather models predict UV Index 9.3 for Urban Honolulu, Hawaii (HI) tomorrow, peaking near 2:00 PM HST - Very High risk level.

02468106 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMHawaii-Aleutian Standard Time (HST, GMT-10)00.41.63.86.78.39.18.59.36.941.70.40
Data Source: National Oceanic and Atmospheric Administration (NOAA)

5 Day UV Index Forecast

May 21, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0
Low
7:00 AM0.4
Low
8:00 AM1.6
Low
9:00 AM3.9
Moderate
10:00 AM6.7
High
11:00 AM9.2
Very High
12:00 PM11.1
Extreme
1:00 PM11.2
Extreme
2:00 PM9.7
Very High
3:00 PM6.9
High
4:00 PM4
Moderate
5:00 PM1.7
Low
6:00 PM0.5
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

May 22, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0
Low
7:00 AM0.4
Low
8:00 AM1.6
Low
9:00 AM3.9
Moderate
10:00 AM6.7
High
11:00 AM8.6
Very High
12:00 PM10.3
Very High
1:00 PM11
Extreme
2:00 PM9.5
Very High
3:00 PM6.8
High
4:00 PM4
Moderate
5:00 PM1.7
Low
6:00 PM0.4
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

May 23, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0
Low
7:00 AM0.4
Low
8:00 AM1.6
Low
9:00 AM3.8
Moderate
10:00 AM6.7
High
11:00 AM8.3
Very High
12:00 PM9.1
Very High
1:00 PM8.5
Very High
2:00 PM9.3
Very High
3:00 PM6.9
High
4:00 PM4
Moderate
5:00 PM1.7
Low
6:00 PM0.4
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

May 24, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0
Low
7:00 AM0.4
Low
8:00 AM1.7
Low
9:00 AM3.8
Moderate
10:00 AM6.7
High
11:00 AM9.3
Very High
12:00 PM11
Extreme
1:00 PM11
Extreme
2:00 PM9.5
Very High
3:00 PM6.9
High
4:00 PM4.1
Moderate
5:00 PM1.7
Low
6:00 PM0.4
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

May 25, 2026

TimeUV IndexRisk
12:00 AM0
Low
1:00 AM0
Low
2:00 AM0
Low
3:00 AM0
Low
4:00 AM0
Low
5:00 AM0
Low
6:00 AM0
Low
7:00 AM0.4
Low
8:00 AM1.6
Low
9:00 AM3.7
Moderate
10:00 AM6.6
High
11:00 AM9.3
Very High
12:00 PM11.4
Extreme
1:00 PM11.6
Extreme
2:00 PM10
Very High
3:00 PM7.2
High
4:00 PM3.9
Moderate
5:00 PM1.7
Low
6:00 PM0.5
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low
Data Source: National Oceanic and Atmospheric Administration (NOAA)

Nearby Places

Maximum UV Index Today
Data Source: National Oceanic and Atmospheric Administration (NOAA)