UV Index for Yosemite Valley, CA

Current Yosemite Valley UV Index

0.6 (Low)

Last Updated 33 minutes ago

Hourly Yosemite Valley UV Index

The hourly Yosemite Valley, CA UV Index forecast for Monday, October 20th, 2025.

5 Day Hourly Yosemite Valley UV Index Forecast

Last Updated 22 hours ago

The UV index forecast for the next five days in Yosemite Valley, CA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Yosemite Valley over the next five days will be 4.7 on Monday, October 20th at 1:00 pm.

The UV index forecast for Monday, October 20th in Yosemite Valley, CA is below.

Time UV Index Risk
10am 1.7
Low
11am 3
Moderate
12pm 4.2
Moderate
1pm 4.7
Moderate
2pm 4.2
Moderate
3pm 3.1
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 Tuesday, October 21st in Yosemite Valley, 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
Low
9am 0.6
Low
10am 1.6
Low
11am 3
Moderate
12pm 4.2
Moderate
1pm 4.6
Moderate
2pm 4.2
Moderate
3pm 3
Moderate
4pm 1.6
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 Wednesday, October 22nd in Yosemite Valley, 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
Low
9am 0.5
Low
10am 1.5
Low
11am 2.6
Low
12pm 3.8
Moderate
1pm 4.4
Moderate
2pm 4
Moderate
3pm 2.9
Low
4pm 1.6
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 Yosemite Valley, 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