UV Index for Simi Valley, CA

Current Simi Valley UV Index

0 (Low)

Last Updated 49 minutes ago

Hourly Simi Valley UV Index

The hourly Simi Valley, CA UV Index forecast for Friday, October 31st, 2025.

5 Day Hourly Simi Valley UV Index Forecast

Last Updated 18 hours ago

The UV index forecast for the next five days in Simi Valley, CA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Simi Valley over the next five days will be 4.8 on Friday, October 31st at 1:00 pm.

The UV index forecast for Friday, October 31st in Simi Valley, CA is below.

Time UV Index Risk
6am 0
Low
7am 0
Low
8am 0
Low
9am 0.6
Low
10am 1.6
Low
11am 3.1
Moderate
12pm 4.3
Moderate
1pm 4.8
Moderate
2pm 4.2
Moderate
3pm 3
Moderate
4pm 1.6
Low
5pm 0.5
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, November 1st in Simi Valley, 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
Low
8am 0
Low
9am 0.6
Low
10am 1.7
Low
11am 3.2
Moderate
12pm 4.4
Moderate
1pm 4.8
Moderate
2pm 4.3
Moderate
3pm 2.9
Low
4pm 1.4
Low
5pm 0.5
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, November 2nd in Simi Valley, CA is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.6
Low
9am 1.6
Low
10am 3
Moderate
11am 4.1
Moderate
12pm 4.2
Moderate
1pm 3.8
Moderate
2pm 2.7
Low
3pm 1.5
Low
4pm 0.5
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, November 3rd in Simi Valley, CA is below.

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