UV Index for Sunnyvale, TX

Current Sunnyvale UV Index

0 (Low)

Last Updated 42 minutes ago

Hourly Sunnyvale UV Index

The hourly Sunnyvale, TX UV Index forecast for Monday, September 15th, 2025.

5 Day Hourly Sunnyvale UV Index Forecast

Last Updated 14 hours ago

The UV index forecast for the next five days in Sunnyvale, TX has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Sunnyvale over the next five days will be 7.9 on Tuesday, September 16th at 1:00 pm.

The UV index forecast for Monday, September 15th in Sunnyvale, TX is below.

Time UV Index Risk
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.1
Low
9am 0.8
Low
10am 2.2
Low
11am 3.9
Moderate
12pm 6.3
High
1pm 7.5
High
2pm 7.4
High
3pm 6.1
High
4pm 1.7
Low
5pm 0.4
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 Tuesday, September 16th in Sunnyvale, TX 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 0.9
Low
10am 2.4
Low
11am 4.5
Moderate
12pm 5.6
Moderate
1pm 7.9
High
2pm 7.6
High
3pm 5.3
Moderate
4pm 1.9
Low
5pm 1
Low
6pm 0.8
Low
7pm 0.1
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, September 17th in Sunnyvale, TX 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 0.9
Low
10am 2.4
Low
11am 4.5
Moderate
12pm 6.7
High
1pm 7.9
High
2pm 7.7
High
3pm 6.1
High
4pm 2
Low
5pm 0.7
Low
6pm 0.3
Low
7pm 0.1
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Thursday, September 18th in Sunnyvale, TX 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