UV Index Today in Tucson, Arizona (AZ)

Wednesday, July 15, 2026 -9:15 AM MST (GMT-7)

The UV Index in Tucson, Arizona (AZ) right now is 4.9. This reading was last updated at 9:00 AM MST, about 15 minutes ago. The UV Index at10:00 AM MST, in about 44 minutes from now, is expected to be 7.8.

The maximum UV Index today in Tucson is expected to be 11.8 at 12:00 PM MST,2 hours and 44 minutes from now. The maximum UV Index tomorrow is expected to be 6.3 at 11:00 AM MST.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

July 15
11.8
12:00 PM MST
Extreme

Tomorrow

July 16
6.3
11:00 AM MST
High

UV Index Today Hourly

July 15

The UV Index for Tucson, Arizona (AZ) peaks at 11.8 today at 12:00 PM MST, classified as Extreme risk.

0246810125 AM6 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMMountain Standard Time (MST, GMT-7)Now: 9:15 AM00.20.82.44.97.810.411.811.7107.24.31.60.10
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

July 16

The UV Index for Tucson, Arizona (AZ) peaks at 6.3 tomorrow at 11:00 AM MST, classified as High risk.

02468106 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMMountain Standard Time (MST, GMT-7)00.10.20.41.96.32.52.646.33.31.50.60
Data Source: National Oceanic and Atmospheric Administration (NOAA)

5 Day UV Index Forecast

July 14, 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 AM0.8
Low
8:00 AM2.4
Low
9:00 AM5
Moderate
10:00 AM8
Very High
11:00 AM10.5
Extreme
12:00 PM11.9
Extreme
1:00 PM11.8
Extreme
2:00 PM10.1
Very High
3:00 PM7
High
4:00 PM4.4
Moderate
5:00 PM2
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

July 15, 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 AM0.2
Low
7:00 AM0.8
Low
8:00 AM2.4
Low
9:00 AM4.9
Moderate
10:00 AM7.8
Very High
11:00 AM10.4
Very High
12:00 PM11.8
Extreme
1:00 PM11.7
Extreme
2:00 PM10
Very High
3:00 PM7.2
High
4:00 PM4.3
Moderate
5:00 PM1.6
Low
6:00 PM0.1
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

July 16, 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 AM0.1
Low
8:00 AM0.2
Low
9:00 AM0.4
Low
10:00 AM1.9
Low
11:00 AM6.3
High
12:00 PM2.5
Moderate
1:00 PM2.6
Moderate
2:00 PM4
Moderate
3:00 PM6.3
High
4:00 PM3.3
Moderate
5:00 PM1.5
Low
6:00 PM0.6
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

July 17, 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 AM2.3
Low
9:00 AM4.8
Moderate
10:00 AM7.7
Very High
11:00 AM10.2
Very High
12:00 PM11.6
Extreme
1:00 PM11.5
Extreme
2:00 PM8.4
Very High
3:00 PM5.5
High
4:00 PM1.6
Low
5:00 PM1.6
Low
6:00 PM0.2
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

July 18, 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 AM4.5
Moderate
10:00 AM7.2
High
11:00 AM9.7
Very High
12:00 PM10.9
Extreme
1:00 PM10.8
Extreme
2:00 PM9.3
Very High
3:00 PM7
High
4:00 PM4.2
Moderate
5:00 PM1.9
Low
6:00 PM0.6
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)