UV Index for Petaluma, CA

Current Petaluma UV Index

0 (Low)

Last Updated 5 minutes ago

Hourly Petaluma UV Index

The hourly Petaluma, CA UV Index forecast for Sunday, July 13th, 2025.

5 Day Hourly Petaluma UV Index Forecast

Last Updated 15 hours ago

The UV index forecast for the next five days in Petaluma, CA has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Petaluma over the next five days will be 10.9 on Sunday, July 13th at 1:00 pm.

The UV index forecast for Sunday, July 13th in Petaluma, CA is below.

Time UV Index Risk
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0.2
Low
8am 0.8
Low
9am 2.3
Low
10am 4.9
Moderate
11am 7.7
High
12pm 10
Very High
1pm 10.9
Very High
2pm 10.5
Very High
3pm 8.8
Very High
4pm 6.3
High
5pm 3.7
Moderate
6pm 1.7
Low
7pm 0.5
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, July 14th in Petaluma, 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 0.3
Low
8am 1.1
Low
9am 2.8
Low
10am 5.1
Moderate
11am 7.6
High
12pm 9.7
Very High
1pm 10.6
Very High
2pm 10.3
Very High
3pm 8.6
Very High
4pm 6.1
High
5pm 3.4
Moderate
6pm 1.4
Low
7pm 0.4
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, July 15th in Petaluma, 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 0.2
Low
8am 0.7
Low
9am 1.7
Low
10am 3.4
Moderate
11am 5.6
Moderate
12pm 7.7
High
1pm 8.7
Very High
2pm 9
Very High
3pm 7.8
High
4pm 5.6
Moderate
5pm 3
Moderate
6pm 1.1
Low
7pm 0.3
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, July 16th in Petaluma, 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