UV Index Today in Urban Honolulu, Hawaii (HI)

Friday, August 7, 2026 -9:35 AM HST (GMT-10)

The UV Index in Urban Honolulu, Hawaii (HI) right now is 4.2. This reading was last updated at 9:00 AM HST, about 35 minutes ago. The UV Index at10:00 AM HST, in about 24 minutes from now, is expected to be 7.4.

The maximum UV Index today in Urban Honolulu is expected to be 12.6 at 1:00 PM HST,3 hours and 24 minutes from now. The maximum UV Index tomorrow is expected to be 12.2 at 1:00 PM HST.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

August 7
12.6
1:00 PM HST
Extreme

Tomorrow

August 8
12.2
1:00 PM HST
Extreme

UV Index Today Hourly

August 7

The UV Index for Urban Honolulu, Hawaii (HI) peaks at 12.6 today at 1:00 PM HST, classified as Extreme risk.

0246810126 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMHawaii-Aleutian Standard Time (HST, GMT-10)Now: 9:35 AM00.41.64.27.410.512.212.610.97.84.41.70.40
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

August 8

Weather models predict UV Index 12.2 for Urban Honolulu, Hawaii (HI) tomorrow, peaking near 1:00 PM HST - Extreme risk level.

0246810126 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMHawaii-Aleutian Standard Time (HST, GMT-10)00.41.53.76.99.712.112.210.47.54.21.60.40
Data Source: National Oceanic and Atmospheric Administration (NOAA)

5 Day UV Index Forecast

August 6, 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 AM3.9
Moderate
10:00 AM7.1
High
11:00 AM9.8
Very High
12:00 PM11.8
Extreme
1:00 PM12.5
Extreme
2:00 PM10.4
Very High
3:00 PM7.7
Very High
4:00 PM4.3
Moderate
5:00 PM1.8
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

August 7, 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 AM4.2
Moderate
10:00 AM7.4
High
11:00 AM10.5
Extreme
12:00 PM12.2
Extreme
1:00 PM12.6
Extreme
2:00 PM10.9
Extreme
3:00 PM7.8
Very High
4:00 PM4.4
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

August 8, 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 AM1.5
Low
9:00 AM3.7
Moderate
10:00 AM6.9
High
11:00 AM9.7
Very High
12:00 PM12.1
Extreme
1:00 PM12.2
Extreme
2:00 PM10.4
Very High
3:00 PM7.5
Very High
4:00 PM4.2
Moderate
5:00 PM1.6
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

August 9, 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 AM1.5
Low
9:00 AM3.3
Moderate
10:00 AM6.2
High
11:00 AM9.2
Very High
12:00 PM10.9
Extreme
1:00 PM10.9
Extreme
2:00 PM8.8
Very High
3:00 PM6.2
High
4:00 PM3.7
Moderate
5:00 PM1.5
Low
6:00 PM0.3
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

August 10, 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 AM0.2
Low
8:00 AM1
Low
9:00 AM2.9
Moderate
10:00 AM6.9
High
11:00 AM9.7
Very High
12:00 PM12.2
Extreme
1:00 PM12.5
Extreme
2:00 PM10.6
Extreme
3:00 PM7.2
High
4:00 PM4
Moderate
5:00 PM1.6
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
Data Source: National Oceanic and Atmospheric Administration (NOAA)

Nearby Places

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