Do I need sunscreen today in Arvada, 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
10AM
2PM
6PM
10PM
2AM
5AM
LowModerateHighVery high
Hourly UV and cloud cover
UV index is unitless. Cloud cover is shown as a percentage.
HourUV indexCloud cover
11AM0Low7%
12PM0Low7%
1PM1Low7%
2PM1Low6%
3PM2Low5%
4PM4Moderate5%
5PM6High7%
6PM8Very high8%
7PM9Very high12%
8PM9Very high20%
9PM10Very high33%
10PM8Very high51%
11PM5Moderate61%
12AM3Moderate61%
1AM2Low60%
2AM1Low56%
3AM0Low52%
4AM0Low38%
5AM0Low29%