UV Index for Houston, TX

Current Houston UV Index

2.3 (Low)

Last Updated 35 minutes ago

Hourly Houston UV Index

The hourly Houston, TX UV Index forecast for Thursday, December 25th, 2025.

5 Day Hourly Houston UV Index Forecast

Last Updated 22 hours ago

The UV index forecast for the next five days in Houston, TX has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in Houston over the next five days will be 4.4 on Thursday, December 25th at 12:00 pm.

The UV index forecast for Thursday, December 25th in Houston, TX is below.

Time UV Index Risk
11am 3.7
Moderate
12pm 4.4
Moderate
1pm 4.2
Moderate
2pm 3.2
Moderate
3pm 1.8
Low
4pm 0.7
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 Friday, December 26th in Houston, 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 1
Low
10am 2.2
Low
11am 3.3
Moderate
12pm 4
Moderate
1pm 3.9
Moderate
2pm 3
Moderate
3pm 0.9
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, December 27th in Houston, 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 1
Low
10am 2.2
Low
11am 3.6
Moderate
12pm 4.3
Moderate
1pm 4.2
Moderate
2pm 3.2
Moderate
3pm 1.8
Low
4pm 0.7
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, December 28th in Houston, 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
View Historical UV Index Data