UV Index for San Jacinto, CA

Current San Jacinto UV Index

4.3 (Moderate)

Last Updated 33 minutes ago

Hourly San Jacinto UV Index

The hourly San Jacinto, CA UV Index forecast for Friday, July 18th, 2025.

5 Day Hourly San Jacinto UV Index Forecast

Last Updated 5 hours ago

The UV index forecast for the next five days in San Jacinto, CA has 1 day reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in San Jacinto over the next five days will be 11.6 on Monday, July 21st at 1:00 pm.

The UV index forecast for Friday, July 18th in San Jacinto, CA is below.

Time UV Index Risk
5pm 2.2
Low
6pm 0.8
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, July 19th in San Jacinto, 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 0.4
Low
8am 1.5
Low
9am 3.4
Moderate
10am 6
High
11am 8.5
Very High
12pm 10.2
Very High
1pm 10.7
Very High
2pm 9.6
Very High
3pm 7.4
High
4pm 4.8
Moderate
5pm 2.4
Low
6pm 0.9
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, July 20th in San Jacinto, 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 0.4
Low
8am 1.4
Low
9am 3.3
Moderate
10am 5.8
Moderate
11am 8.3
Very High
12pm 10
Very High
1pm 10.6
Very High
2pm 9.5
Very High
3pm 7.7
High
4pm 5
Moderate
5pm 2.6
Low
6pm 1
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, July 21st in San Jacinto, 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 0.4
Low
8am 1.4
Low
9am 3.4
Moderate
10am 6.1
High
11am 8.7
Very High
12pm 10.9
Very High
1pm 11.6
Extreme
2pm 10.5
Very High
3pm 8.2
Very High
4pm 5.3
Moderate
5pm 2.7
Low
6pm 1
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, July 22nd in San Jacinto, 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