UV Index for San Juan, TX

Current San Juan UV Index

4.9 (Moderate)

Last Updated 35 minutes ago

Hourly San Juan UV Index

The hourly San Juan, TX UV Index forecast for Wednesday, January 7th, 2026.

5 Day Hourly San Juan UV Index Forecast

Last Updated 1 day ago

The UV index forecast for the next five days in San Juan, TX has no days reaching the extreme level and no days reaching the high or very high levels. The peak UV intensity in San Juan over the next five days will be 5.1 on Thursday, January 8th at 1:00 pm.

The UV index forecast for Wednesday, January 7th in San Juan, TX is below.

Time UV Index Risk
2pm 4
Moderate
3pm 2.6
Low
4pm 1.2
Low
5pm 0.3
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 8th in San Juan, 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 2.3
Low
11am 3.9
Moderate
12pm 5
Moderate
1pm 5.1
Moderate
2pm 4.2
Moderate
3pm 2.6
Low
4pm 1.2
Low
5pm 0.3
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, January 9th in San Juan, 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 0.8
Low
10am 2
Low
11am 3.5
Moderate
12pm 4.4
Moderate
1pm 4.6
Moderate
2pm 3.2
Moderate
3pm 2
Low
4pm 1
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, January 10th in San Juan, 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