UV Index for Placentia, CA

Current Placentia UV Index

5 (Moderate)

Last Updated 48 minutes ago

Hourly Placentia UV Index

The hourly Placentia, CA UV Index forecast for Saturday, October 18th, 2025.

5 Day Hourly Placentia UV Index Forecast

Last Updated 3 hours ago

The UV index forecast for the next five days in Placentia, CA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Placentia over the next five days will be 5.7 on Sunday, October 19th at 1:00 pm.

The UV index forecast for Saturday, October 18th in Placentia, CA is below.

Time UV Index Risk
3pm 3.5
Moderate
4pm 1.9
Low
5pm 0.6
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, October 19th in Placentia, 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 0.2
Low
9am 0.9
Low
10am 2.3
Low
11am 4
Moderate
12pm 5.3
Moderate
1pm 5.7
Moderate
2pm 5
Moderate
3pm 3.6
Moderate
4pm 1.9
Low
5pm 0.6
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, October 20th in Placentia, 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 0.2
Low
9am 0.9
Low
10am 2.2
Low
11am 3.8
Moderate
12pm 5
Moderate
1pm 5.4
Moderate
2pm 4.7
Moderate
3pm 3.3
Moderate
4pm 1.8
Low
5pm 0.6
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, October 21st in Placentia, 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 0.2
Low
9am 0.8
Low
10am 2.1
Low
11am 3.6
Moderate
12pm 4.8
Moderate
1pm 5.2
Moderate
2pm 4.6
Moderate
3pm 3.2
Moderate
4pm 1.7
Low
5pm 0.6
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, October 22nd in Placentia, 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