UV index today in San Antonio, TX
UV Index
High
Today's UV index is high. If working or spending time outdoors, wear UV protective clothing, use sunscreen, and try to avoid direct sun exposure between 11 AM and 4 PM.
TodayTomorrow
ExtremeVery highHighModerateLow
5PM
8PM
11PM
2AM
4AM
LowModerateHigh
Hourly UV and cloud cover
UV index is unitless. Cloud cover is shown as a percentage.
HourUV indexCloud cover
6PM7High82%
7PM6High79%
8PM6High76%
9PM6High75%
10PM4Moderate74%
11PM3Moderate83%
12AM1Low87%
1AM1Low89%
2AM0Low89%
3AM0Low89%
4AM0Low88%