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Cleveland, OH UV Index Today

Modelled for · GMT-4

4.3 Moderate

EPA suggests shade around midday, a hat and sunglasses.

Today's peak is 4.3 (Moderate) at about 3pm local time.

Hour by hour today

Local time, midnight to midnight. Bar colour is the EPA UV band, never restyled.

Cleveland today, in numbers

Latitude
41.5°N — 38 of 121 from the north
Today's peak
4.3 (Moderate) — 113 of 121 nationally
Peak arrives
3pm local (GMT-4)
At or above 6
not today
At or above 3
2 hours, 2pm to 4pm

Cleveland never reaches the high band today; the midday hours still warrant a hat. Nationally today the spread runs 10.9 in Tucson (32°N) to 1.5 in Anchorage (61°N). Why latitude and the clock decide this →

Nearest metros we model

UV changes with latitude, not with a city boundary, so a neighbour a hundred miles north reads differently for a reason.

Where Cleveland sits on the scale

4.3 is Moderate. EPA suggests shade around midday, a hat and sunglasses. Today Cleveland also reaches Moderate at its peak .

The scale is open-ended: 11 is where the named bands stop, not the maximum. All five bands, with the EPA guidance for each →

Modelled, not measured

The UV figures for Cleveland are computed by the Copernicus atmosphere model, not read off an instrument here — unlike the AQI on our air-quality pages, which comes from a regulatory monitor. Cloud is where a UV model is weakest. What that means in practice →

Questions about UV in Cleveland

What is the UV index in Cleveland today?

4.3 right now (Moderate), peaking at 4.3 around 3pm local time. It does not reach the high band today. This is a modelled value, not a ground measurement.

When is UV strongest in Cleveland today?

Around 3pm local time (GMT-4), not at noon — solar noon drifts across a timezone and daylight saving moves it later on the clock.

Is this measured or modelled?

Modelled. The figures come from the Copernicus atmosphere model via Open-Meteo, unlike the AQI on our air-quality pages, which is read from an EPA regulatory monitor. Cloud cover is where a UV model is weakest.

Updated