UV Index for Greenville, CA

Current Greenville UV Index

0 (Low)

Last Updated 34 minutes ago

Hourly Greenville UV Index

The hourly Greenville, CA UV Index forecast for Wednesday, September 17th, 2025.

5 Day Hourly Greenville UV Index Forecast

Last Updated 8 hours ago

The UV index forecast for the next five days in Greenville, CA has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Greenville over the next five days will be 7.2 on Wednesday, September 17th at 1:00 pm.

The UV index forecast for Wednesday, September 17th in Greenville, CA is below.

Time UV Index Risk
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, September 18th in Greenville, 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 0.3
Low
9am 1.1
Low
10am 2.7
Low
11am 4.2
Moderate
12pm 5.6
Moderate
1pm 6.9
High
2pm 6.9
High
3pm 5
Moderate
4pm 3.2
Moderate
5pm 1.2
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 Friday, September 19th in Greenville, 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 0.7
Low
10am 2.1
Low
11am 3.3
Moderate
12pm 3.3
Moderate
1pm 3.9
Moderate
2pm 5
Moderate
3pm 2
Low
4pm 1.8
Low
5pm 1.2
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 Saturday, September 20th in Greenville, 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 0.1
Low
9am 0.6
Low
10am 1.6
Low
11am 3.6
Moderate
12pm 6.2
High
1pm 7
High
2pm 6.4
High
3pm 1.8
Low
4pm 0.5
Low
5pm 0.4
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 Sunday, September 21st in Greenville, 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