UV Index for Half Moon Bay, CA

Current Half Moon Bay UV Index

8.4 (Very High)

Last Updated 2 minutes ago

Hourly Half Moon Bay UV Index

The hourly Half Moon Bay, CA UV Index forecast for Tuesday, July 15th, 2025.

5 Day Hourly Half Moon Bay UV Index Forecast

Last Updated 3 hours ago

The UV index forecast for the next five days in Half Moon Bay, CA has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Half Moon Bay over the next five days will be 10.8 on Thursday, July 17th at 1:00 pm.

The UV index forecast for Tuesday, July 15th in Half Moon Bay, CA is below.

Time UV Index Risk
3pm 7.2
High
4pm 5.2
Moderate
5pm 3
Moderate
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 16th in Half Moon Bay, 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 0.2
Low
8am 0.6
Low
9am 1.5
Low
10am 3.2
Moderate
11am 5.5
Moderate
12pm 7.7
High
1pm 9.2
Very High
2pm 9.6
Very High
3pm 8.6
Very High
4pm 6.2
High
5pm 3.6
Moderate
6pm 1.6
Low
7pm 0.5
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, July 17th in Half Moon Bay, 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 0.2
Low
8am 0.7
Low
9am 1.6
Low
10am 3.2
Moderate
11am 6
High
12pm 9.8
Very High
1pm 10.8
Very High
2pm 10.3
Very High
3pm 8.5
Very High
4pm 6.1
High
5pm 3.5
Moderate
6pm 1.6
Low
7pm 0.5
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, July 18th in Half Moon Bay, 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 0.2
Low
8am 0.8
Low
9am 1.9
Low
10am 3.6
Moderate
11am 6.2
High
12pm 9.2
Very High
1pm 10.5
Very High
2pm 10
Very High
3pm 8.3
Very High
4pm 5.9
Moderate
5pm 3.4
Moderate
6pm 1.5
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, July 19th in Half Moon Bay, 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