UV Index for San Diego, CA

Current San Diego UV Index

0 (Low)

Last Updated 11 minutes ago

Hourly San Diego UV Index

The hourly San Diego, CA UV Index forecast for Tuesday, October 21st, 2025.

5 Day Hourly San Diego UV Index Forecast

Last Updated 8 hours ago

The UV index forecast for the next five days in San Diego, CA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in San Diego over the next five days will be 5.5 on Friday, October 24th at 1:00 pm.

The UV index forecast for Tuesday, October 21st in San Diego, CA is below.

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

The UV index forecast for Wednesday, October 22nd in San Diego, 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 5.1
Moderate
1pm 5.4
Moderate
2pm 4.8
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 Thursday, October 23rd in San Diego, 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 0.1
Low
9am 0.5
Low
10am 1.5
Low
11am 3.1
Moderate
12pm 4
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 San Diego, 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 3.9
Moderate
12pm 5.2
Moderate
1pm 5.5
Moderate
2pm 4.8
Moderate
3pm 3.4
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 Saturday, October 25th in San Diego, 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