Do I need sunscreen today in Westminster, CO
UV Index
Very high
Today's UV index is very 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
11AM
3PM
7PM
11PM
3AM
5AM
LowModerateHighVery high
Hourly UV and cloud cover
UV index is unitless. Cloud cover is shown as a percentage.
HourUV indexCloud cover
12PM0Low6%
1PM1Low5%
2PM1Low5%
3PM2Low4%
4PM4Moderate4%
5PM6High5%
6PM8Very high7%
7PM9Very high10%
8PM9Very high17%
9PM10Very high31%
10PM8Very high47%
11PM5Moderate58%
12AM3Moderate60%
1AM2Low57%
2AM1Low51%
3AM0Low47%
4AM0Low42%
5AM0Low28%