UV Index for Alta, CA

Current Alta UV Index

1 (Low)

Last Updated 58 minutes ago

Hourly Alta UV Index

The hourly Alta, CA UV Index forecast for Saturday, November 8th, 2025.

5 Day Hourly Alta UV Index Forecast

Last Updated 27 seconds ago

The UV index forecast for the next five days in Alta, CA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Alta over the next five days will be 3.4 on Saturday, November 8th at 12:00 pm.

The UV index forecast for Saturday, November 8th in Alta, CA is below.

Time UV Index Risk
10am 2
Low
11am 3
Moderate
12pm 3.4
Moderate
1pm 2.9
Low
2pm 2
Low
3pm 1
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, November 9th in Alta, 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 0.3
Low
9am 1
Low
10am 2
Low
11am 2.9
Low
12pm 3.3
Moderate
1pm 3
Moderate
2pm 2
Low
3pm 1
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, November 10th in Alta, 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 0.3
Low
9am 0.9
Low
10am 1.9
Low
11am 2.7
Low
12pm 3.1
Moderate
1pm 2.9
Low
2pm 2
Low
3pm 1.1
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 Tuesday, November 11th in Alta, 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 0.3
Low
9am 1
Low
10am 1.9
Low
11am 2.8
Low
12pm 3.1
Moderate
1pm 2.8
Low
2pm 2
Low
3pm 1
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 Wednesday, November 12th in Alta, CA is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low