UV Index for Sylvester, TX

Current Sylvester UV Index

0 (Low)

Last Updated 22 minutes ago

Hourly Sylvester UV Index

The hourly Sylvester, TX UV Index forecast for Thursday, December 18th, 2025.

5 Day Hourly Sylvester UV Index Forecast

Last Updated 19 hours ago

The UV index forecast for the next five days in Sylvester, TX has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Sylvester over the next five days will be 3.5 on Saturday, December 20th at 1:00 pm.

The UV index forecast for Thursday, December 18th in Sylvester, TX is below.

Time UV Index Risk
8am 0
Low
9am 0.5
Low
10am 1.3
Low
11am 2.4
Low
12pm 3.2
Moderate
1pm 3.3
Moderate
2pm 2.7
Low
3pm 1.7
Low
4pm 0.8
Low
5pm 0.2
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Friday, December 19th in Sylvester, 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
Low
9am 0.5
Low
10am 1.4
Low
11am 2.5
Low
12pm 3.3
Moderate
1pm 3.4
Moderate
2pm 2.8
Low
3pm 1.8
Low
4pm 0.8
Low
5pm 0.2
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, December 20th in Sylvester, 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
Low
9am 0.5
Low
10am 1.4
Low
11am 2.5
Low
12pm 3.4
Moderate
1pm 3.5
Moderate
2pm 2.9
Low
3pm 1.8
Low
4pm 0.8
Low
5pm 0.2
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, December 21st in Sylvester, 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