UV Index for San Jose, CA

Current San Jose UV Index

0 (Low)

Last Updated 21 minutes ago

Hourly San Jose UV Index

The hourly San Jose, CA UV Index forecast for Friday, July 11th, 2025.

5 Day Hourly San Jose UV Index Forecast

Last Updated 13 hours ago

The UV index forecast for the next five days in San Jose, CA has 2 days reaching the extreme level and 1 day reaching the high or very high levels. The peak UV intensity in San Jose over the next five days will be 11.1 on Saturday, July 12th at 1:00 pm.

The UV index forecast for Friday, July 11th in San Jose, CA is below.

Time UV Index Risk
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0.3
Low
8am 1.2
Low
9am 2.8
Low
10am 4.8
Moderate
11am 7.2
High
12pm 9.2
Very High
1pm 10.4
Very High
2pm 10
Very High
3pm 8.3
Very High
4pm 5.8
Moderate
5pm 3.4
Moderate
6pm 1.4
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, July 12th in San Jose, CA is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0.2
Low
8am 0.9
Low
9am 2.6
Low
10am 5.3
Moderate
11am 8.1
Very High
12pm 10.2
Very High
1pm 11.1
Extreme
2pm 10.6
Very High
3pm 8.7
Very High
4pm 6.1
High
5pm 3.6
Moderate
6pm 1.6
Low
7pm 0.5
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, July 13th in San Jose, CA is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0.3
Low
8am 1.2
Low
9am 2.9
Low
10am 5.4
Moderate
11am 8
Very High
12pm 10.2
Very High
1pm 11
Extreme
2pm 10.5
Very High
3pm 8.7
Very High
4pm 6.1
High
5pm 3.5
Moderate
6pm 1.6
Low
7pm 0.5
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, July 14th in San Jose, CA is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low