UV Index Today in Mesa, Arizona (AZ)

Friday, May 22, 2026 -11:38 AMMST (GMT-7)

The UV Index in Mesa, Arizona (AZ) right now is 8.1. This reading was last updated at 11:00 AM MST, about 38 minutes ago. The UV Index at12:00 PM MST, in about 21 minutes from now, is expected to be 9.3.

The maximum UV Index today in Mesa is expected to be 9.3 at 12:00 PM MST,21 minutes from now. The maximum UV Index tomorrow is expected to be 9.3 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
9.3
12:00 PM MST
Very High

UV Index Today Hourly

May 22

UV levels in Mesa, Arizona (AZ) are projected to top out at 9.3 today, hitting Very High risk near 12:00 PM MST.

02468105 AM6 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMMountain Standard Time (MST, GMT-7)Now: 11:38 AM00.10.61.83.768.19.39.385.93.61.70.60
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

May 23

Tomorrow in Mesa, Arizona (AZ), the UV Index is expected to reach up to 9.3 around12:00 PM MST, placing it in the Very High risk category for sun exposure.

02468105 AM6 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMMountain Standard Time (MST, GMT-7)00.10.61.83.768.19.39.27.95.83.61.70.60
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 AM1.7
Low
9:00 AM3.6
Moderate
10:00 AM5.7
High
11:00 AM7.6
Very High
12:00 PM8.7
Very High
1:00 PM8.5
Very High
2:00 PM7.3
High
3:00 PM5.3
Moderate
4:00 PM3.2
Moderate
5:00 PM1.4
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 AM0.6
Low
8:00 AM1.8
Low
9:00 AM3.7
Moderate
10:00 AM6
High
11:00 AM8.1
Very High
12:00 PM9.3
Very High
1:00 PM9.3
Very High
2:00 PM8
Very High
3:00 PM5.9
High
4:00 PM3.6
Moderate
5:00 PM1.7
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

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 AM0.6
Low
8:00 AM1.8
Low
9:00 AM3.7
Moderate
10:00 AM6
High
11:00 AM8.1
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 PM3.6
Moderate
5:00 PM1.7
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

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 AM0.6
Low
8:00 AM1.8
Low
9:00 AM3.7
Moderate
10:00 AM6
High
11:00 AM8.1
Very High
12:00 PM9.2
Very High
1:00 PM9.2
Very High
2:00 PM7.9
Very High
3:00 PM5.8
High
4:00 PM3.6
Moderate
5:00 PM1.7
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

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 AM1.5
Low
9:00 AM3.7
Moderate
10:00 AM6
High
11:00 AM7.2
High
12:00 PM8.6
Very High
1:00 PM8.2
Very High
2:00 PM7.5
Very High
3:00 PM5.6
High
4:00 PM3.4
Moderate
5:00 PM1.6
Low
6:00 PM0.5
Low
7:00 PM0.1
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
  • Gilbert - 9.2
  • Chandler - 9.2
  • Phoenix - 9.3
Data Source: National Oceanic and Atmospheric Administration (NOAA)