UV Index Today in Riverside, California (CA)

Friday, May 22, 2026 -11:39 AMPDT (GMT-7)

The UV Index in Riverside, California (CA) right now is 6.8. This reading was last updated at 11:00 AM PDT, about 39 minutes ago. The UV Index at12:00 PM PDT, in about 20 minutes from now, is expected to be 8.4.

The maximum UV Index today in Riverside is expected to be 8.9 at 1:00 PM PDT,1 hour and 20 minutes from now. The maximum UV Index tomorrow is expected to be 8.7 at 1:00 PM PDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

May 22
8.9
1:00 PM PDT
Very High

Tomorrow

May 23
8.7
1:00 PM PDT
Very High

UV Index Today Hourly

May 22

Data shows Riverside, California (CA)'s UV Index climbing to 8.9 today, peaking at1:00 PM PDT under Very High conditions.

02468106 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PMPacific Daylight Time (PDT, GMT-7)Now: 11:39 AM00.41.22.84.96.88.48.98.16.44.22.20.90.20
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

May 23

Based on the latest forecast, Riverside, California (CA) will see a peak UV Index of 8.7tomorrow around 1:00 PM PDT, which is classified as Very High risk.

02468106 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PMPacific Daylight Time (PDT, GMT-7)00.31.22.74.86.88.48.786.34.22.20.90.20
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 AM2.4
Low
10:00 AM4.3
Moderate
11:00 AM6.3
High
12:00 PM8.1
Very High
1:00 PM8.6
Very High
2:00 PM7.9
Very High
3:00 PM6.1
High
4:00 PM4
Moderate
5:00 PM2.1
Low
6:00 PM0.8
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 AM0.4
Low
8:00 AM1.2
Low
9:00 AM2.8
Moderate
10:00 AM4.9
Moderate
11:00 AM6.8
High
12:00 PM8.4
Very High
1:00 PM8.9
Very High
2:00 PM8.1
Very High
3:00 PM6.4
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 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 AM1.2
Low
9:00 AM2.7
Moderate
10:00 AM4.8
Moderate
11:00 AM6.8
High
12:00 PM8.4
Very High
1:00 PM8.7
Very High
2:00 PM8
Very High
3:00 PM6.3
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 AM6.8
High
12:00 PM8.4
Very High
1:00 PM8.8
Very High
2:00 PM8
Very High
3:00 PM6.3
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 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 AM1.1
Low
9:00 AM2.6
Moderate
10:00 AM4.6
Moderate
11:00 AM6.5
High
12:00 PM8.1
Very High
1:00 PM8.4
Very High
2:00 PM7.7
Very High
3:00 PM6.1
High
4:00 PM4
Moderate
5:00 PM2.1
Low
6:00 PM0.8
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
Data Source: National Oceanic and Atmospheric Administration (NOAA)