When is UV highest today in Rio de Janeiro, RJ
UV Index
Low
Today's UV index is low. Danger from the Sun's UV rays is minimal for the average person.
TodayTomorrow
ExtremeVery highHighModerateLow
12AM
4AM
8AM
12PM
4PM
8PM
11PM
Low
Hourly UV and cloud cover
UV index is unitless. Cloud cover is shown as a percentage.
HourUV indexCloud cover
9PM0Low29%
10PM0Low28%
11PM0Low30%
12AM0Low29%
1AM0Low28%
2AM0Low29%