UV Index Today in Mesa, Arizona (AZ)

Saturday, August 29, 2026 -11:06 AM MST (GMT-7)

The UV Index in Mesa, Arizona (AZ) right now is 8.4. This reading was last updated at 11:00 AM MST, about 6 minutes ago. The UV Index at12:00 PM MST, in about 53 minutes from now, is expected to be 9.9.

The maximum UV Index today in Mesa is expected to be 9.9 at 12:00 PM MST,53 minutes from now. The maximum UV Index tomorrow is expected to be 9.7 at 12:00 PM MST.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

August 29
9.9
12:00 PM MST
Very High

Tomorrow

August 30
9.7
12:00 PM MST
Very High

UV Index Today Hourly

August 29

UV levels in Mesa, Arizona (AZ) are projected to top out at 9.9 today, hitting Very High risk near 12:00 PM MST.

02468106 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMMountain Standard Time (MST, GMT-7)Now: 11:06 AM00.41.43.468.49.99.88.35.93.21.30.30
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

August 30

Tomorrow in Mesa, Arizona (AZ), the UV Index is expected to reach up to 9.7 around12:00 PM MST, placing it in the Very High risk category for sun exposure.

02468106 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMMountain Standard Time (MST, GMT-7)00.31.43.35.98.39.79.78.25.73.11.20.30
Data Source: National Oceanic and Atmospheric Administration (NOAA)

5 Day UV Index Forecast

August 28, 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 AM0.3
Low
8:00 AM1.4
Low
9:00 AM3.2
Moderate
10:00 AM5.4
Moderate
11:00 AM7.8
Very High
12:00 PM9.1
Very High
1:00 PM9.2
Very High
2:00 PM8
Very High
3:00 PM5.6
High
4:00 PM3.1
Moderate
5:00 PM1.2
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 29, 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 AM1.4
Low
9:00 AM3.4
Moderate
10:00 AM6
High
11:00 AM8.4
Very High
12:00 PM9.9
Very High
1:00 PM9.8
Very High
2:00 PM8.3
Very High
3:00 PM5.9
High
4:00 PM3.2
Moderate
5:00 PM1.3
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 30, 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 AM0.3
Low
8:00 AM1.4
Low
9:00 AM3.3
Moderate
10:00 AM5.9
High
11:00 AM8.3
Very High
12:00 PM9.7
Very High
1:00 PM9.7
Very High
2:00 PM8.2
Very High
3:00 PM5.7
High
4:00 PM3.1
Moderate
5:00 PM1.2
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 31, 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 AM0.3
Low
9:00 AM3
Moderate
10:00 AM4.1
Moderate
11:00 AM8.3
Very High
12:00 PM9.7
Very High
1:00 PM9.6
Very High
2:00 PM8.1
Very High
3:00 PM5.6
High
4:00 PM3.1
Moderate
5:00 PM1.2
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

September 1, 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 AM0.3
Low
8:00 AM1.4
Low
9:00 AM3.4
Moderate
10:00 AM6.2
High
11:00 AM8.6
Very High
12:00 PM10.1
Very High
1:00 PM10.1
Very High
2:00 PM8.5
Very High
3:00 PM5.9
High
4:00 PM3.2
Moderate
5:00 PM1.2
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
Data Source: National Oceanic and Atmospheric Administration (NOAA)

Nearby Places

Maximum UV Index Today
  • Gilbert - 10
  • Chandler - 10
  • Phoenix - 9.8
Data Source: National Oceanic and Atmospheric Administration (NOAA)