UV Index Today in San Jose, California (CA)

Wednesday, July 15, 2026 -9:15 AM PDT (GMT-7)

The UV Index in San Jose, California (CA) right now is 2.7. This reading was last updated at 9:00 AM PDT, about 15 minutes ago. The UV Index at10:00 AM PDT, in about 44 minutes from now, is expected to be 5.

The maximum UV Index today in San Jose is expected to be 10.1 at 1:00 PM PDT,3 hours and 44 minutes from now. The maximum UV Index tomorrow is expected to be 10.5 at 1:00 PM PDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

July 15
10.1
1:00 PM PDT
Very High

Tomorrow

July 16
10.5
1:00 PM PDT
Extreme

UV Index Today Hourly

July 15

San Jose, California (CA) sees Very High-risk UV conditions today, with the index reaching10.1 around 1:00 PM PDT.

02468106 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM8 PMPacific Daylight Time (PDT, GMT-7)Now: 9:15 AM00.31.22.757.49.310.19.67.95.63.21.40.40
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

July 16

Tomorrow in San Jose, California (CA), the UV Index is expected to reach up to 10.5 around1:00 PM PDT, placing it in the Extreme 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)00.31.22.85.27.69.610.59.98.15.73.31.50.40
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 AM0.3
Low
8:00 AM1.1
Low
9:00 AM2.7
Moderate
10:00 AM5
Moderate
11:00 AM7.3
High
12:00 PM9.1
Very High
1:00 PM10
Very High
2:00 PM9.6
Very High
3:00 PM7.9
Very High
4:00 PM5.5
High
5:00 PM3.2
Moderate
6:00 PM1.4
Low
7:00 PM0.4
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 AM0.3
Low
8:00 AM1.2
Low
9:00 AM2.7
Moderate
10:00 AM5
Moderate
11:00 AM7.4
High
12:00 PM9.3
Very High
1:00 PM10.1
Very High
2:00 PM9.6
Very High
3:00 PM7.9
Very High
4:00 PM5.6
High
5:00 PM3.2
Moderate
6:00 PM1.4
Low
7:00 PM0.4
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 AM0.3
Low
8:00 AM1.2
Low
9:00 AM2.8
Moderate
10:00 AM5.2
Moderate
11:00 AM7.6
Very High
12:00 PM9.6
Very High
1:00 PM10.5
Extreme
2:00 PM9.9
Very High
3:00 PM8.1
Very High
4:00 PM5.7
High
5:00 PM3.3
Moderate
6:00 PM1.5
Low
7:00 PM0.4
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 AM0.3
Low
8:00 AM1.2
Low
9:00 AM2.8
Moderate
10:00 AM5.2
Moderate
11:00 AM7.7
Very High
12:00 PM9.7
Very High
1:00 PM10.6
Extreme
2:00 PM10
Very High
3:00 PM8.3
Very High
4:00 PM5.8
High
5:00 PM3.4
Moderate
6:00 PM1.5
Low
7:00 PM0.4
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 AM0.3
Low
8:00 AM1.2
Low
9:00 AM2.9
Moderate
10:00 AM5
Moderate
11:00 AM5.1
Moderate
12:00 PM9.3
Very High
1:00 PM6.8
High
2:00 PM10.2
Very High
3:00 PM3.2
Moderate
4:00 PM5.9
High
5:00 PM3.4
Moderate
6:00 PM0.5
Low
7:00 PM0.4
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)