UV Index for Fortuna, CA

Current Fortuna UV Index

0 (Low)

Last Updated 53 minutes ago

Hourly Fortuna UV Index

The hourly Fortuna, CA UV Index forecast for Thursday, January 8th, 2026.

5 Day Hourly Fortuna UV Index Forecast

Last Updated 10 hours ago

The UV index forecast for the next five days in Fortuna, CA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Fortuna over the next five days will be 1.8 on Friday, January 9th at 12:00 pm.

The UV index forecast for Thursday, January 8th in Fortuna, CA is below.

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

The UV index forecast for Friday, January 9th in Fortuna, 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 0.9
Low
11am 1.4
Low
12pm 1.8
Low
1pm 1.7
Low
2pm 1.3
Low
3pm 0.7
Low
4pm 0.2
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Saturday, January 10th in Fortuna, 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 0.3
Low
10am 0.8
Low
11am 1.3
Low
12pm 1.6
Low
1pm 1.6
Low
2pm 1.2
Low
3pm 0.6
Low
4pm 0.2
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, January 11th in Fortuna, 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 0.8
Low
11am 1.4
Low
12pm 1.8
Low
1pm 1.8
Low
2pm 1.3
Low
3pm 0.7
Low
4pm 0.2
Low
5pm 0
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, January 12th in Fortuna, CA is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low