UV Index Today in Santa Ana, California (CA)

Friday, May 22, 2026 -11:40 AMPDT (GMT-7)

The UV Index in Santa Ana, California (CA) right now is 7. This reading was last updated at 11:00 AM PDT, about 40 minutes ago. The UV Index at12:00 PM PDT, in about 19 minutes from now, is expected to be 8.3.

The maximum UV Index today in Santa Ana is expected to be 8.4 at 1:00 PM PDT,1 hour and 19 minutes from now. The maximum UV Index tomorrow is expected to be 8.3 at 1:00 PM PDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

May 22
8.4
1:00 PM PDT
Very High

Tomorrow

May 23
8.3
1:00 PM PDT
Very High

UV Index Today Hourly

May 22

The sun will be strongest in Santa Ana, California (CA) around 1:00 PM PDT today, with a UV Index of 8.4 (Very High risk).

02468106 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PMPacific Daylight Time (PDT, GMT-7)Now: 11:40 AM00.31.22.84.978.38.47.664.12.30.90.20
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

May 23

The highest UV reading in Santa Ana, California (CA) tomorrow is 8.3 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 PM8 PMPacific Daylight Time (PDT, GMT-7)00.31.12.74.76.78.18.37.664.22.20.90.20
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
Low
7:00 AM0.3
Low
8:00 AM1
Low
9:00 AM2.5
Moderate
10:00 AM4.4
Moderate
11:00 AM6.4
High
12:00 PM8.1
Very High
1:00 PM8.6
Very High
2:00 PM7.7
Very High
3:00 PM5.8
High
4:00 PM3.8
Moderate
5:00 PM2.1
Low
6:00 PM0.9
Low
7:00 PM0.2
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
Low
7:00 AM0.3
Low
8:00 AM1.2
Low
9:00 AM2.8
Moderate
10:00 AM4.9
Moderate
11:00 AM7
High
12:00 PM8.3
Very High
1:00 PM8.4
Very High
2:00 PM7.6
Very High
3:00 PM6
High
4:00 PM4.1
Moderate
5:00 PM2.3
Low
6:00 PM0.9
Low
7:00 PM0.2
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
Low
7:00 AM0.3
Low
8:00 AM1.1
Low
9:00 AM2.7
Moderate
10:00 AM4.7
Moderate
11:00 AM6.7
High
12:00 PM8.1
Very High
1:00 PM8.3
Very High
2:00 PM7.6
Very High
3:00 PM6
High
4:00 PM4.2
Moderate
5:00 PM2.2
Low
6:00 PM0.9
Low
7:00 PM0.2
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
Low
7:00 AM0.3
Low
8:00 AM1.2
Low
9:00 AM2.7
Moderate
10:00 AM4.8
Moderate
11:00 AM6.9
High
12:00 PM8.4
Very High
1:00 PM8.8
Very High
2:00 PM8.1
Very High
3:00 PM6.4
High
4:00 PM4.2
Moderate
5:00 PM2.3
Low
6:00 PM0.9
Low
7:00 PM0.2
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
Low
7:00 AM0.3
Low
8:00 AM1
Low
9:00 AM2.4
Low
10:00 AM4.5
Moderate
11:00 AM6.6
High
12:00 PM8
Very High
1:00 PM8.5
Very High
2:00 PM7.8
Very High
3:00 PM6.2
High
4:00 PM4.1
Moderate
5:00 PM2.2
Low
6:00 PM0.9
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 - 9
  • Irvine - 9
Data Source: National Oceanic and Atmospheric Administration (NOAA)