UV Index for Thermalito, CA

Current Thermalito UV Index

0 (Low)

Last Updated 41 minutes ago

Hourly Thermalito UV Index

The hourly Thermalito, CA UV Index forecast for Sunday, January 18th, 2026.

5 Day Hourly Thermalito UV Index Forecast

Last Updated 12 hours ago

The UV index forecast for the next five days in Thermalito, CA has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Thermalito over the next five days will be 2.4 on Tuesday, January 20th at 12:00 pm.

The UV index forecast for Sunday, January 18th in Thermalito, CA is below.

Time UV Index Risk
11pm 0
Low

The UV index forecast for Monday, January 19th in Thermalito, 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 0.6
Low
10am 1.3
Low
11am 2
Low
12pm 2.2
Low
1pm 2.1
Low
2pm 1.5
Low
3pm 0.8
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 Tuesday, January 20th in Thermalito, 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 0.6
Low
10am 1.4
Low
11am 2.1
Low
12pm 2.4
Low
1pm 2.2
Low
2pm 1.5
Low
3pm 0.8
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 Wednesday, January 21st in Thermalito, 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 0.6
Low
10am 1.2
Low
11am 1.8
Low
12pm 2
Low
1pm 2
Low
2pm 1.4
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 Thursday, January 22nd in Thermalito, CA is below.

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