UV Index for Tucson, AZ

Current Tucson UV Index

0.8 (Low)

Last Updated 1 minute ago

Hourly Tucson UV Index

The hourly Tucson, AZ UV Index forecast for Thursday, September 18th, 2025.

5 Day Hourly Tucson UV Index Forecast

Last Updated 6 hours ago

The UV index forecast for the next five days in Tucson, AZ has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Tucson over the next five days will be 9.5 on Thursday, September 18th at 12:00 pm.

The UV index forecast for Thursday, September 18th in Tucson, AZ is below.

Time UV Index Risk
6pm 0.1
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 Tucson, 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
Low
9am 3
Moderate
10am 3.9
Moderate
11am 6.1
High
12pm 3.4
Moderate
1pm 8.5
Very High
2pm 7.1
High
3pm 4.8
Moderate
4pm 1.5
Low
5pm 0.8
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 Tucson, 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 8
Very High
12pm 9.4
Very High
1pm 9.2
Very High
2pm 7.6
High
3pm 3.8
Moderate
4pm 1.2
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 Sunday, September 21st in Tucson, 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 5.4
Moderate
11am 8
Very High
12pm 9.4
Very High
1pm 9.3
Very High
2pm 7.6
High
3pm 5.1
Moderate
4pm 2.6
Low
5pm 0.8
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, September 22nd in Tucson, 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