UV Index for Costa Mesa, CA

Current Costa Mesa UV Index

0 (Low)

Last Updated 50 minutes ago

Hourly Costa Mesa UV Index

The hourly Costa Mesa, CA UV Index forecast for Wednesday, March 26th, 2025.

5 Day Hourly Costa Mesa UV Index Forecast

Last Updated 17 hours ago

The UV index forecast for the next five days in Costa Mesa, CA has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Costa Mesa over the next five days will be 7.7 on Friday, March 28th at 1:00 pm.

The UV index forecast for Wednesday, March 26th in Costa Mesa, CA is below.

Time UV Index Risk
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.4
Low
9am 1.4
Low
10am 3.3
Moderate
11am 5.2
Moderate
12pm 6.6
High
1pm 6.9
High
2pm 6.2
High
3pm 4.7
Moderate
4pm 2.8
Low
5pm 1.2
Low
6pm 0.3
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, March 27th in Costa Mesa, 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 0.5
Low
9am 1.7
Low
10am 3.2
Moderate
11am 5.2
Moderate
12pm 4.8
Moderate
1pm 6.9
High
2pm 7
High
3pm 5.1
Moderate
4pm 3
Moderate
5pm 1.4
Low
6pm 0.4
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, March 28th in Costa Mesa, 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 0.5
Low
9am 1.7
Low
10am 3.6
Moderate
11am 5.6
Moderate
12pm 7.2
High
1pm 7.7
High
2pm 6.9
High
3pm 5.2
Moderate
4pm 3.1
Moderate
5pm 1.4
Low
6pm 0.4
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, March 29th in Costa Mesa, 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