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Last Updated 47 minutes ago
The hourly Big River, CA UV Index forecast for Wednesday, September 17th, 2025.
Last Updated 16 hours ago
The UV index forecast for the next five days in Big River, CA has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Big River over the next five days will be 8.4 on Thursday, September 18th at 12:00 pm.
The UV index forecast for Wednesday, September 17th in Big River, CA is below.
Time | UV Index | Risk |
---|---|---|
4am | 0 |
Low |
5am | 0 |
Low |
6am | 0 |
Low |
7am | 0.1 |
Low |
8am | 0.8 |
Low |
9am | 2 |
Low |
10am | 3.9 |
Moderate |
11am | 3.4 |
Moderate |
12pm | 6.3 |
High |
1pm | 7.4 |
High |
2pm | 6.4 |
High |
3pm | 4.5 |
Moderate |
4pm | 2.7 |
Low |
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 Big River, 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 | 2.3 |
Low |
10am | 4.5 |
Moderate |
11am | 6.8 |
High |
12pm | 8.4 |
Very High |
1pm | 8.1 |
Very High |
2pm | 5.2 |
Moderate |
3pm | 2.2 |
Low |
4pm | 1.8 |
Low |
5pm | 0.8 |
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 Friday, September 19th in Big River, 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 | 0.8 |
Low |
9am | 2.2 |
Low |
10am | 4.4 |
Moderate |
11am | 6.7 |
High |
12pm | 8.2 |
Very High |
1pm | 8.4 |
Very High |
2pm | 7.2 |
High |
3pm | 5.2 |
Moderate |
4pm | 2.8 |
Low |
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 Saturday, September 20th in Big River, 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 |