UV Index for Graton, CA

Current Graton UV Index

0 (Low)

Last Updated 32 minutes ago

Hourly Graton UV Index

The hourly Graton, CA UV Index forecast for Wednesday, July 2nd, 2025.

5 Day Hourly Graton UV Index Forecast

Last Updated 11 hours ago

The UV index forecast for the next five days in Graton, CA has no days reaching the extreme level and 4 days reaching the high or very high levels. The peak UV intensity in Graton over the next five days will be 9.3 on Friday, July 4th at 1:00 pm.

The UV index forecast for Wednesday, July 2nd in Graton, CA is below.

Time UV Index Risk
11pm 0
Low

The UV index forecast for Thursday, July 3rd in Graton, 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 2.4
Low
10am 4.4
Moderate
11am 5.7
Moderate
12pm 6.3
High
1pm 7.9
High
2pm 6.9
High
3pm 4.5
Moderate
4pm 3.6
Moderate
5pm 2.7
Low
6pm 1.2
Low
7pm 0.5
Low
8pm 0.1
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, July 4th in Graton, 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
Low
9am 2.5
Low
10am 4.5
Moderate
11am 6.5
High
12pm 8.2
Very High
1pm 9.3
Very High
2pm 9
Very High
3pm 7.6
High
4pm 5.5
Moderate
5pm 3.3
Moderate
6pm 1.6
Low
7pm 0.5
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, July 5th in Graton, 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 2.6
Low
10am 4.8
Moderate
11am 7.2
High
12pm 8.2
Very High
1pm 8.5
Very High
2pm 8.6
Very High
3pm 7.3
High
4pm 4.8
Moderate
5pm 3.4
Moderate
6pm 1.6
Low
7pm 0.5
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, July 6th in Graton, 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