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St. Paul, MN UV Index Today

Modelled for · GMT-5

Right now

5 Moderate

EPA suggests shade around midday, a hat and sunglasses.

Today's peak is 5 (Moderate) at about 2pm local time.

Hour by hour today

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

St. Paul today, in numbers

Latitude
44.9°N — 11 of 121 from the north
Today's peak
5 (Moderate) — 109 of 121 nationally
Peak arrives
2pm local (GMT-5)
At or above 6
not today
At or above 3
6 hours, 11am to 5pm

St. Paul 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.

Minneapolis, MN 9 mi · 45.0°N peak 5 Madison, WI 224 mi · 43.1°N peak 6.2 Des Moines, IA 232 mi · 41.6°N peak 6

Where St. Paul sits on the scale

5 is Moderate. EPA suggests shade around midday, a hat and sunglasses. Today St. Paul 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 St. Paul 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 St. Paul

What is the UV index in St. Paul today?

5 right now (Moderate), peaking at 5 around 2pm local time. It does not reach the high band today. This is a modelled value, not a ground measurement.

When is UV strongest in St. Paul today?

Around 2pm local time (GMT-5), 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.

St. Paul air qualityThe AQI, from a regulatory monitor rather than a model UV across the USWhere St. Paul sits against every metro we track

Updated