UV Index for Sunnyvale, TX

Current Sunnyvale UV Index

0 (Low)

Last Updated 1 minute ago

Hourly Sunnyvale UV Index

The hourly Sunnyvale, TX UV Index forecast for Saturday, February 21st, 2026.

5 Day Hourly Sunnyvale UV Index Forecast

Last Updated 17 hours ago

The UV index forecast for the next five days in Sunnyvale, TX has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Sunnyvale over the next five days will be 5.3 on Saturday, February 21st at 1:00 pm.

The UV index forecast for Saturday, February 21st in Sunnyvale, TX is below.

Time UV Index Risk
6am 0
Low
7am 0
Low
8am 0.4
Low
9am 1.4
Low
10am 2.8
Low
11am 4.4
Moderate
12pm 4.9
Moderate
1pm 5.3
Moderate
2pm 4.3
Moderate
3pm 2.7
Low
4pm 1.3
Low
5pm 0.4
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, February 22nd 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 0.4
Low
9am 1.4
Low
10am 2.7
Low
11am 4
Moderate
12pm 4.8
Moderate
1pm 5.2
Moderate
2pm 4.2
Moderate
3pm 2.7
Low
4pm 1.3
Low
5pm 0.4
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, February 23rd 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 0.4
Low
9am 1.4
Low
10am 2.8
Low
11am 4.4
Moderate
12pm 5.2
Moderate
1pm 4.9
Moderate
2pm 4.3
Moderate
3pm 2.8
Low
4pm 1.3
Low
5pm 0.4
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, February 24th 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