UV Index for Simi Valley, CA

Current Simi Valley UV Index

0.6 (Low)

Last Updated 7 minutes ago

Hourly Simi Valley UV Index

The hourly Simi Valley, CA UV Index forecast for Saturday, August 30th, 2025.

5 Day Hourly Simi Valley UV Index Forecast

Last Updated 7 hours ago

The UV index forecast for the next five days in Simi Valley, CA has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Simi Valley over the next five days will be 9.2 on Monday, September 1st at 1:00 pm.

The UV index forecast for Saturday, August 30th in Simi Valley, CA is below.

Time UV Index Risk
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, August 31st 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 0.1
Low
8am 0.7
Low
9am 2.1
Low
10am 4.2
Moderate
11am 6.6
High
12pm 8.7
Very High
1pm 9
Very High
2pm 8.5
Very High
3pm 6.2
High
4pm 3.8
Moderate
5pm 1.8
Low
6pm 0.6
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, September 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 0.7
Low
9am 2.1
Low
10am 4.3
Moderate
11am 6.6
High
12pm 8.6
Very High
1pm 9.2
Very High
2pm 8.4
Very High
3pm 6.6
High
4pm 4
Moderate
5pm 1.9
Low
6pm 0.6
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, September 2nd 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 0.7
Low
9am 2.1
Low
10am 4.2
Moderate
11am 6.6
High
12pm 8.4
Very High
1pm 9
Very High
2pm 8.2
Very High
3pm 6.3
High
4pm 3.9
Moderate
5pm 1.8
Low
6pm 0.5
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, September 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
5am 0
Low