UV Index for San Tan Valley, AZ

Current San Tan Valley UV Index

9.2 (Very High)

Last Updated 6 minutes ago

Hourly San Tan Valley UV Index

The hourly San Tan Valley, AZ UV Index forecast for Wednesday, September 10th, 2025.

5 Day Hourly San Tan Valley UV Index Forecast

Last Updated 1 day ago

The UV index forecast for the next five days in San Tan Valley, AZ has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in San Tan Valley over the next five days will be 9.3 on Thursday, September 11th at 12:00 pm.

The UV index forecast for Wednesday, September 10th in San Tan Valley, AZ is below.

Time UV Index Risk
2pm 7.8
High
3pm 5.4
Moderate
4pm 2.9
Low
5pm 1
Low
6pm 0.2
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, September 11th in San Tan Valley, 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 1.1
Low
9am 3
Moderate
10am 5.5
Moderate
11am 7.9
High
12pm 9.3
Very High
1pm 9.3
Very High
2pm 7.8
High
3pm 5.4
Moderate
4pm 2.9
Low
5pm 1
Low
6pm 0.2
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, September 12th in San Tan Valley, 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 1.1
Low
9am 2.9
Low
10am 5.3
Moderate
11am 7.6
High
12pm 9
Very High
1pm 8.9
Very High
2pm 7.4
High
3pm 5.1
Moderate
4pm 2.7
Low
5pm 1
Low
6pm 0.2
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, September 13th in San Tan Valley, 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