UV Index Today in Santa Ana, California (CA)

Wednesday, July 15, 2026 -10:21 AM PDT (GMT-7)

The UV Index in Santa Ana, California (CA) right now is 5.9. This reading was last updated at 10:00 AM PDT, about 21 minutes ago. The UV Index at11:00 AM PDT, in about 38 minutes from now, is expected to be 8.6.

The maximum UV Index today in Santa Ana is expected to be 10.9 at 1:00 PM PDT,2 hours and 38 minutes from now. The maximum UV Index tomorrow is expected to be 11.2 at 1:00 PM PDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

July 15
10.9
1:00 PM PDT
Extreme

Tomorrow

July 16
11.2
1:00 PM PDT
Extreme

UV Index Today Hourly

July 15

The sun will be strongest in Santa Ana, California (CA) around 1:00 PM PDT today, with a UV Index of 10.9 (Extreme risk).

02468106 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PMPacific Daylight Time (PDT, GMT-7)Now: 10:21 AM00.41.43.45.98.610.610.99.97.75.12.81.10.20
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

July 16

The highest UV reading in Santa Ana, California (CA) tomorrow is 11.2 at 1:00 PM PDT, falling in the Extreme category.

0246810126 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PMPacific Daylight Time (PDT, GMT-7)00.41.53.468.710.611.210.285.32.81.10.20
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 AM0.4
Low
8:00 AM1.4
Low
9:00 AM3.3
Moderate
10:00 AM5.8
High
11:00 AM8.3
Very High
12:00 PM10.3
Very High
1:00 PM10.6
Extreme
2:00 PM9.6
Very High
3:00 PM7.8
Very High
4:00 PM5.3
Moderate
5:00 PM2.8
Moderate
6:00 PM1.1
Low
7:00 PM0.3
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
Low
7:00 AM0.4
Low
8:00 AM1.4
Low
9:00 AM3.4
Moderate
10:00 AM5.9
High
11:00 AM8.6
Very High
12:00 PM10.6
Extreme
1:00 PM10.9
Extreme
2:00 PM9.9
Very High
3:00 PM7.7
Very High
4:00 PM5.1
Moderate
5:00 PM2.8
Moderate
6:00 PM1.1
Low
7:00 PM0.2
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 AM0.4
Low
8:00 AM1.5
Low
9:00 AM3.4
Moderate
10:00 AM6
High
11:00 AM8.7
Very High
12:00 PM10.6
Extreme
1:00 PM11.2
Extreme
2:00 PM10.2
Very High
3:00 PM8
Very High
4:00 PM5.3
Moderate
5:00 PM2.8
Moderate
6:00 PM1.1
Low
7:00 PM0.2
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
Low
7:00 AM0.4
Low
8:00 AM1.4
Low
9:00 AM3.3
Moderate
10:00 AM5.9
High
11:00 AM8.1
Very High
12:00 PM10.3
Very High
1:00 PM11
Extreme
2:00 PM10.1
Very High
3:00 PM8
Very High
4:00 PM5.3
Moderate
5:00 PM2.8
Moderate
6:00 PM1.1
Low
7:00 PM0.2
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
Low
7:00 AM0.4
Low
8:00 AM1.5
Low
9:00 AM3.4
Moderate
10:00 AM6.1
High
11:00 AM8.5
Very High
12:00 PM7.9
Very High
1:00 PM10.1
Very High
2:00 PM8.1
Very High
3:00 PM2.2
Low
4:00 PM1.1
Low
5:00 PM1.1
Low
6:00 PM1
Low
7:00 PM0.2
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
  • Anaheim - 11.5
  • Irvine - 11.5
Data Source: National Oceanic and Atmospheric Administration (NOAA)