UV Index for Lake San Marcos, CA

Current Lake San Marcos UV Index

0 (Low)

Last Updated 19 minutes ago

Hourly Lake San Marcos UV Index

The hourly Lake San Marcos, CA UV Index forecast for Tuesday, July 1st, 2025.

5 Day Hourly Lake San Marcos UV Index Forecast

Last Updated 18 hours ago

The UV index forecast for the next five days in Lake San Marcos, CA has 2 days reaching the extreme level and 1 day reaching the high or very high levels. The peak UV intensity in Lake San Marcos over the next five days will be 11.3 on Tuesday, July 1st at 1:00 pm.

The UV index forecast for Tuesday, July 1st in Lake San Marcos, CA is below.

Time UV Index Risk
6am 0
Low
7am 0.5
Low
8am 1.6
Low
9am 3.6
Moderate
10am 6.3
High
11am 8.9
Very High
12pm 10.8
Very High
1pm 11.3
Extreme
2pm 10.2
Very High
3pm 8
Very High
4pm 5.3
Moderate
5pm 2.8
Low
6pm 1.1
Low
7pm 0.3
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, July 2nd in Lake San Marcos, 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 0.4
Low
8am 1.5
Low
9am 3.5
Moderate
10am 6
High
11am 8.5
Very High
12pm 10.2
Very High
1pm 10.8
Very High
2pm 9.8
Very High
3pm 7.7
High
4pm 5.1
Moderate
5pm 2.7
Low
6pm 1.1
Low
7pm 0.2
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, July 3rd in Lake San Marcos, 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 0.5
Low
8am 1.6
Low
9am 3.6
Moderate
10am 6.4
High
11am 9
Very High
12pm 10.9
Very High
1pm 11.3
Extreme
2pm 10.2
Very High
3pm 8.1
Very High
4pm 5.4
Moderate
5pm 2.9
Low
6pm 1.1
Low
7pm 0.3
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, July 4th in Lake San Marcos, 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