UV Index Today in Santa Ana, California (CA)

Saturday, August 29, 2026 -11:08 AM PDT (GMT-7)

The UV Index in Santa Ana, California (CA) right now is 7.1. This reading was last updated at 11:00 AM PDT, about 8 minutes ago. The UV Index at12:00 PM PDT, in about 51 minutes from now, is expected to be 9.

The maximum UV Index today in Santa Ana is expected to be 9.6 at 1:00 PM PDT,1 hour and 51 minutes from now. The maximum UV Index tomorrow is expected to be 9.2 at 1:00 PM PDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

August 29
9.6
1:00 PM PDT
Very High

Tomorrow

August 30
9.2
1:00 PM PDT
Very High

UV Index Today Hourly

August 29

The sun will be strongest in Santa Ana, California (CA) around 1:00 PM PDT today, with a UV Index of 9.6 (Very High risk).

02468106 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMPacific Daylight Time (PDT, GMT-7)Now: 11:08 AM00.10.82.44.77.199.68.56.541.80.50
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

August 30

The highest UV reading in Santa Ana, California (CA) tomorrow is 9.2 at 1:00 PM PDT, falling in the Very High category.

02468106 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMPacific Daylight Time (PDT, GMT-7)00.10.82.34.578.79.28.36.23.81.70.50
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 AM0.1
Low
8:00 AM0.8
Low
9:00 AM2.3
Low
10:00 AM4.7
Moderate
11:00 AM7.1
High
12:00 PM9
Very High
1:00 PM9.1
Very High
2:00 PM8.2
Very High
3:00 PM6.2
High
4:00 PM3.9
Moderate
5:00 PM1.8
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

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 AM0.1
Low
8:00 AM0.8
Low
9:00 AM2.4
Low
10:00 AM4.7
Moderate
11:00 AM7.1
High
12:00 PM9
Very High
1:00 PM9.6
Very High
2:00 PM8.5
Very High
3:00 PM6.5
High
4:00 PM4
Moderate
5:00 PM1.8
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

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 AM0.1
Low
8:00 AM0.8
Low
9:00 AM2.3
Low
10:00 AM4.5
Moderate
11:00 AM7
High
12:00 PM8.7
Very High
1:00 PM9.2
Very High
2:00 PM8.3
Very High
3:00 PM6.2
High
4:00 PM3.8
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

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 AM0.1
Low
8:00 AM0.7
Low
9:00 AM2.1
Low
10:00 AM4.3
Moderate
11:00 AM6.7
High
12:00 PM8.5
Very High
1:00 PM9.1
Very High
2:00 PM8.4
Very High
3:00 PM6.3
High
4:00 PM3.9
Moderate
5:00 PM1.8
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

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 AM0.1
Low
8:00 AM0.8
Low
9:00 AM2.4
Low
10:00 AM4.7
Moderate
11:00 AM7.3
High
12:00 PM9.2
Very High
1:00 PM9.8
Very High
2:00 PM8.9
Very High
3:00 PM6.7
High
4:00 PM4.1
Moderate
5:00 PM1.9
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
  • Anaheim - 9.9
  • Irvine - 9.9
Data Source: National Oceanic and Atmospheric Administration (NOAA)