UV Index for Vista Santa Rosa, CA

Current Vista Santa Rosa UV Index

0 (Low)

Last Updated 35 minutes ago

Hourly Vista Santa Rosa UV Index

The hourly Vista Santa Rosa, CA UV Index forecast for Monday, September 15th, 2025.

5 Day Hourly Vista Santa Rosa UV Index Forecast

Last Updated 14 hours ago

The UV index forecast for the next five days in Vista Santa Rosa, CA has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Vista Santa Rosa over the next five days will be 9.1 on Monday, September 15th at 1:00 pm.

The UV index forecast for Monday, September 15th in Vista Santa Rosa, CA is below.

Time UV Index Risk
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.7
Low
9am 2.2
Low
10am 4.4
Moderate
11am 6.8
High
12pm 8.6
Very High
1pm 9.1
Very High
2pm 8
Very High
3pm 5.8
Moderate
4pm 3.3
Moderate
5pm 1.4
Low
6pm 0.3
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, September 16th in Vista Santa Rosa, 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 0.7
Low
9am 2.1
Low
10am 4.4
Moderate
11am 6.8
High
12pm 8.5
Very High
1pm 8.9
Very High
2pm 7.9
High
3pm 5.7
Moderate
4pm 3.3
Moderate
5pm 1.3
Low
6pm 0.3
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, September 17th in Vista Santa Rosa, 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 0.7
Low
9am 2.2
Low
10am 4.4
Moderate
11am 6.9
High
12pm 8.7
Very High
1pm 9.1
Very High
2pm 7.9
High
3pm 5.8
Moderate
4pm 3.2
Moderate
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 18th in Vista Santa Rosa, 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