UV Index Today in Tucson, Arizona (AZ)

Friday, May 22, 2026 -11:39 AMMST (GMT-7)

The UV Index in Tucson, Arizona (AZ) right now is 8.2. This reading was last updated at 11:00 AM MST, about 39 minutes ago. The UV Index at12:00 PM MST, in about 20 minutes from now, is expected to be 9.3.

The maximum UV Index today in Tucson is expected to be 9.3 at 12:00 PM MST,20 minutes from now. The maximum UV Index tomorrow is expected to be 9.6 at 12:00 PM MST.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

May 22
9.3
12:00 PM MST
Very High

Tomorrow

May 23
9.6
12:00 PM MST
Very High

UV Index Today Hourly

May 22

The UV Index for Tucson, Arizona (AZ) peaks at 9.3 today at 12:00 PM MST, classified as Very High risk.

02468105 AM6 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMMountain Standard Time (MST, GMT-7)Now: 11:39 AM00.10.71.93.96.28.29.39.27.95.83.51.60.50
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

May 23

The UV Index for Tucson, Arizona (AZ) peaks at 9.6 tomorrow at 12:00 PM MST, classified as Very High risk.

02468105 AM6 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMMountain Standard Time (MST, GMT-7)00.10.71.93.96.38.49.69.48.15.93.51.70.50
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 AM0.1
Low
7:00 AM0.6
Low
8:00 AM1.8
Low
9:00 AM3.8
Moderate
10:00 AM6.1
High
11:00 AM8.1
Very High
12:00 PM9.3
Very High
1:00 PM9.2
Very High
2:00 PM7.8
Very High
3:00 PM5.6
High
4:00 PM3.4
Moderate
5:00 PM1.6
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 AM0.1
Low
7:00 AM0.7
Low
8:00 AM1.9
Low
9:00 AM3.9
Moderate
10:00 AM6.2
High
11:00 AM8.2
Very High
12:00 PM9.3
Very High
1:00 PM9.2
Very High
2:00 PM7.9
Very High
3:00 PM5.8
High
4:00 PM3.5
Moderate
5:00 PM1.6
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 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 AM0.1
Low
7:00 AM0.7
Low
8:00 AM1.9
Low
9:00 AM3.9
Moderate
10:00 AM6.3
High
11:00 AM8.4
Very High
12:00 PM9.6
Very High
1:00 PM9.4
Very High
2:00 PM8.1
Very High
3:00 PM5.9
High
4:00 PM3.5
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 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 AM0.1
Low
7:00 AM0.7
Low
8:00 AM2
Low
9:00 AM4
Moderate
10:00 AM6.4
High
11:00 AM8.6
Very High
12:00 PM9.7
Very High
1:00 PM9.6
Very High
2:00 PM8.3
Very High
3:00 PM6
High
4:00 PM3.6
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 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 AM0.1
Low
7:00 AM0.6
Low
8:00 AM1.9
Low
9:00 AM4.1
Moderate
10:00 AM6.4
High
11:00 AM7.5
Very High
12:00 PM9.9
Very High
1:00 PM9.6
Very High
2:00 PM6.7
High
3:00 PM5.8
High
4:00 PM3.3
Moderate
5:00 PM1.6
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)