When is UV highest today in St. George, UT
UV Index
Extreme
Today's UV index will be extremely high. If you must go outside, wear UV protective clothing, use sunscreen, and try to avoid direct sun exposure between 11 AM and 4 PM.
TodayTomorrow
ExtremeVery highHighModerateLow
11AM
3PM
7PM
11PM
3AM
5AM
LowModerateHighVery highExtreme
Hourly UV and cloud cover
UV index is unitless. Cloud cover is shown as a percentage.
HourUV indexCloud cover
12PM0Low6%
1PM0Low6%
2PM1Low5%
3PM1Low5%
4PM3Moderate5%
5PM5Moderate5%
6PM7High5%
7PM8Very high6%
8PM10Very high7%
9PM11Extreme6%
10PM9Very high6%
11PM7High5%
12AM5Moderate5%
1AM3Moderate5%
2AM2Low6%
3AM0Low8%
4AM0Low9%
5AM0Low13%