UV Index for Sierra Vista, AZ

Current Sierra Vista UV Index

0 (Low)

Last Updated 32 minutes ago

Hourly Sierra Vista UV Index

The hourly Sierra Vista, AZ UV Index forecast for Wednesday, September 17th, 2025.

5 Day Hourly Sierra Vista UV Index Forecast

Last Updated 8 hours ago

The UV index forecast for the next five days in Sierra Vista, AZ has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Sierra Vista over the next five days will be 10.1 on Thursday, September 18th at 12:00 pm.

The UV index forecast for Wednesday, September 17th in Sierra Vista, AZ is below.

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

The UV index forecast for Thursday, September 18th in Sierra Vista, AZ 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 0.9
Low
9am 1.5
Low
10am 5.8
Moderate
11am 8.7
Very High
12pm 10.1
Very High
1pm 9.7
Very High
2pm 7.8
High
3pm 2.7
Low
4pm 0.4
Low
5pm 0.1
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, September 19th in Sierra Vista, AZ 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 1.2
Low
9am 3.2
Moderate
10am 6
High
11am 8.6
Very High
12pm 10
Very High
1pm 9.8
Very High
2pm 6.7
High
3pm 3.2
Moderate
4pm 1
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 Saturday, September 20th in Sierra Vista, AZ 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 1.2
Low
9am 3.3
Moderate
10am 6
High
11am 8.6
Very High
12pm 10.1
Very High
1pm 9.9
Very High
2pm 8
Very High
3pm 5
Moderate
4pm 1.7
Low
5pm 0.5
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, September 21st in Sierra Vista, AZ is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low