UV Index for Half Moon Bay, CA

Current Half Moon Bay UV Index

0 (Low)

Last Updated 56 minutes ago

Hourly Half Moon Bay UV Index

The hourly Half Moon Bay, CA UV Index forecast for Friday, January 16th, 2026.

5 Day Hourly Half Moon Bay UV Index Forecast

Last Updated 8 hours ago

The UV index forecast for the next five days in Half Moon Bay, CA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Half Moon Bay over the next five days will be 2.8 on Monday, January 19th at 12:00 pm.

The UV index forecast for Friday, January 16th in Half Moon Bay, CA is below.

Time UV Index Risk
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, January 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
Low
8am 0.2
Low
9am 0.6
Low
10am 1.4
Low
11am 2.1
Low
12pm 2.4
Low
1pm 2.2
Low
2pm 1.6
Low
3pm 0.8
Low
4pm 0.3
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, January 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
Low
8am 0.1
Low
9am 0.4
Low
10am 1.2
Low
11am 1.9
Low
12pm 2.3
Low
1pm 2.2
Low
2pm 1.6
Low
3pm 0.8
Low
4pm 0.3
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, January 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
6am 0
Low
7am 0
Low
8am 0.2
Low
9am 0.8
Low
10am 1.6
Low
11am 2.4
Low
12pm 2.8
Low
1pm 2.6
Low
2pm 1.9
Low
3pm 1
Low
4pm 0.4
Low
5pm 0
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, January 20th 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