UV Index for Brea, CA

Current Brea UV Index

3.4 (Moderate)

Last Updated 51 minutes ago

Hourly Brea UV Index

The hourly Brea, CA UV Index forecast for Monday, October 20th, 2025.

5 Day Hourly Brea UV Index Forecast

Last Updated 4 hours ago

The UV index forecast for the next five days in Brea, CA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Brea over the next five days will be 5.5 on Monday, October 20th at 1:00 pm.

The UV index forecast for Monday, October 20th in Brea, CA is below.

Time UV Index Risk
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 Brea, 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 3.7
Moderate
12pm 4.9
Moderate
1pm 5.3
Moderate
2pm 4.6
Moderate
3pm 3.3
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 Brea, 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
Low
11am 3.2
Moderate
12pm 3.5
Moderate
1pm 3.3
Moderate
2pm 3.2
Moderate
3pm 3.1
Moderate
4pm 1.6
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 Thursday, October 23rd in Brea, 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
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 Friday, October 24th in Brea, 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