1.2 (Low)
Last Updated 23 minutes ago
The hourly Santa Rosa, CA UV Index forecast for Wednesday, September 17th, 2025.
Last Updated 22 hours ago
The UV index forecast for the next five days in Santa Rosa, CA has no days reaching the extreme level and 1 day reaching the high or very high levels. The peak UV intensity in Santa Rosa over the next five days will be 7.3 on Wednesday, September 17th at 1:00 pm.
The UV index forecast for Wednesday, September 17th in Santa Rosa, CA is below.
Time | UV Index | Risk |
---|---|---|
10am | 2.8 |
Low |
11am | 4.8 |
Moderate |
12pm | 6.6 |
High |
1pm | 7.3 |
High |
2pm | 6.7 |
High |
3pm | 5 |
Moderate |
4pm | 3 |
Moderate |
5pm | 1.4 |
Low |
6pm | 0.4 |
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 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 | 0.2 |
Low |
9am | 0.8 |
Low |
10am | 2.2 |
Low |
11am | 3.3 |
Moderate |
12pm | 3.3 |
Moderate |
1pm | 3.3 |
Moderate |
2pm | 4.3 |
Moderate |
3pm | 1.8 |
Low |
4pm | 1.1 |
Low |
5pm | 0.5 |
Low |
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 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 |
Low |
9am | 0.4 |
Low |
10am | 0.6 |
Low |
11am | 1.2 |
Low |
12pm | 2.6 |
Low |
1pm | 3.1 |
Moderate |
2pm | 2.5 |
Low |
3pm | 1.3 |
Low |
4pm | 0.7 |
Low |
5pm | 0.4 |
Low |
6pm | 0.1 |
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 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 |