UV Index Today in Chula Vista, California (CA)

Saturday, August 8, 2026 -9:30 AM PDT (GMT-7)

The UV Index in Chula Vista, California (CA) right now is 3.1. This reading was last updated at 9:00 AM PDT, about 30 minutes ago. The UV Index at10:00 AM PDT, in about 29 minutes from now, is expected to be 5.6.

The maximum UV Index today in Chula Vista is expected to be 10.4 at 1:00 PM PDT,3 hours and 29 minutes from now. The maximum UV Index tomorrow is expected to be 9.1 at 12:00 PM PDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

August 8
10.4
1:00 PM PDT
Very High

Tomorrow

August 9
9.1
12:00 PM PDT
Very High

UV Index Today Hourly

August 8

Based on the latest forecast, Chula Vista, California (CA) will see a peak UV Index of 10.4today 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)Now: 9:30 AM00.31.23.15.68.29.910.49.47.14.52.20.70.10
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

August 9

Tomorrow in Chula Vista, California (CA), the UV Index is expected to reach up to 9.1 around12:00 PM PDT, 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 PM8 PMPacific Daylight Time (PDT, GMT-7)00.31.12.85.27.69.18.88.46.74.21.90.40.10
Data Source: National Oceanic and Atmospheric Administration (NOAA)

5 Day UV Index Forecast

August 7, 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 AM3
Moderate
10:00 AM5.5
High
11:00 AM8.1
Very High
12:00 PM10
Very High
1:00 PM10.6
Extreme
2:00 PM9.5
Very High
3:00 PM7.3
High
4:00 PM4.4
Moderate
5:00 PM2.1
Low
6:00 PM0.7
Low
7:00 PM0.1
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

August 8, 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 AM3.1
Moderate
10:00 AM5.6
High
11:00 AM8.2
Very High
12:00 PM9.9
Very High
1:00 PM10.4
Very High
2:00 PM9.4
Very High
3:00 PM7.1
High
4:00 PM4.5
Moderate
5:00 PM2.2
Low
6:00 PM0.7
Low
7:00 PM0.1
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

August 9, 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 AM2.8
Moderate
10:00 AM5.2
Moderate
11:00 AM7.6
Very High
12:00 PM9.1
Very High
1:00 PM8.8
Very High
2:00 PM8.4
Very High
3:00 PM6.7
High
4:00 PM4.2
Moderate
5:00 PM1.9
Low
6:00 PM0.4
Low
7:00 PM0.1
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

August 10, 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 AM2.8
Moderate
10:00 AM5.2
Moderate
11:00 AM7.7
Very High
12:00 PM9.1
Very High
1:00 PM9.4
Very High
2:00 PM8.6
Very High
3:00 PM6.5
High
4:00 PM3.9
Moderate
5:00 PM2
Low
6:00 PM0.7
Low
7:00 PM0.1
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

August 11, 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 AM1
Low
9:00 AM1.8
Low
10:00 AM4.6
Moderate
11:00 AM6.8
High
12:00 PM8.6
Very High
1:00 PM8.7
Very High
2:00 PM8.4
Very High
3:00 PM3.2
Moderate
4:00 PM0.9
Low
5:00 PM0.5
Low
6:00 PM0.4
Low
7:00 PM0.1
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
  • San Diego - 10.4
Data Source: National Oceanic and Atmospheric Administration (NOAA)