UV Index Today in San Jose, California (CA)

Tuesday, October 13, 2026 -12:26 PM PDT (GMT-7)

The UV Index in San Jose, California (CA) right now is 4.9. This reading was last updated at 12:00 PM PDT, about 26 minutes ago. The UV Index at1:00 PM PDT, in about 33 minutes from now, is expected to be 5.5.

The maximum UV Index today in San Jose is expected to be 5.5 at 1:00 PM PDT,33 minutes from now. The maximum UV Index tomorrow is expected to be 5.6 at 1:00 PM PDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

Today

October 13
5.5
1:00 PM PDT
High

Tomorrow

October 14
5.6
1:00 PM PDT
High

UV Index Today Hourly

October 13

San Jose, California (CA) sees High-risk UV conditions today, with the index reaching5.5 around 1:00 PM PDT.

02468108 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMPacific Daylight Time (PDT, GMT-7)Now: 12:26 PM00.71.83.44.95.55.23.92.30.90.20
Data Source: National Oceanic and Atmospheric Administration (NOAA)

UV Index Tomorrow Hourly

October 14

Tomorrow in San Jose, California (CA), the UV Index is expected to reach up to 5.6 around1:00 PM PDT, placing it in the High risk category for sun exposure.

02468108 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PMPacific Daylight Time (PDT, GMT-7)00.71.93.54.95.65.23.92.30.90.20
Data Source: National Oceanic and Atmospheric Administration (NOAA)

5 Day UV Index Forecast

October 12, 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
Low
8:00 AM0
Low
9:00 AM0.6
Low
10:00 AM1.8
Low
11:00 AM3.2
Moderate
12:00 PM4.5
Moderate
1:00 PM5.1
Moderate
2:00 PM4.7
Moderate
3:00 PM3.5
Moderate
4:00 PM2.1
Low
5:00 PM0.8
Low
6:00 PM0.2
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

October 13, 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
Low
8:00 AM0
Low
9:00 AM0.7
Low
10:00 AM1.8
Low
11:00 AM3.4
Moderate
12:00 PM4.9
Moderate
1:00 PM5.5
High
2:00 PM5.2
Moderate
3:00 PM3.9
Moderate
4:00 PM2.3
Low
5:00 PM0.9
Low
6:00 PM0.2
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

October 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
Low
8:00 AM0
Low
9:00 AM0.7
Low
10:00 AM1.9
Low
11:00 AM3.5
Moderate
12:00 PM4.9
Moderate
1:00 PM5.6
High
2:00 PM5.2
Moderate
3:00 PM3.9
Moderate
4:00 PM2.3
Low
5:00 PM0.9
Low
6:00 PM0.2
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

October 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
Low
8:00 AM0
Low
9:00 AM0.7
Low
10:00 AM1.8
Low
11:00 AM3.5
Moderate
12:00 PM4.9
Moderate
1:00 PM5.6
High
2:00 PM5.2
Moderate
3:00 PM3.9
Moderate
4:00 PM2.3
Low
5:00 PM0.9
Low
6:00 PM0.2
Low
7:00 PM0
Low
8:00 PM0
Low
9:00 PM0
Low
10:00 PM0
Low
11:00 PM0
Low

October 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
Low
8:00 AM0
Low
9:00 AM0.7
Low
10:00 AM1.9
Low
11:00 AM3.6
Moderate
12:00 PM5
Moderate
1:00 PM5.7
High
2:00 PM5.3
Moderate
3:00 PM3.9
Moderate
4:00 PM2.3
Low
5:00 PM0.9
Low
6:00 PM0.2
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
  • Fremont - 5.4
Data Source: National Oceanic and Atmospheric Administration (NOAA)