When does Edmonton need sun protection?

Whenever the UV index is 3 or above. In Edmonton that is typically from May through September, and any clear spring or fall day UV reaches 3. Health authorities use the same UV Index threshold worldwide.

Does Edmonton need sun protection in winter?

Not every day. Midwinter middays in Edmonton often sit below UV 3, but clear late-winter and early-spring days cross the threshold before summer fully arrives. Check the live index.

Does city shade protect you from UV in Edmonton?

Only while you stay in it. Buildings cut some sky, but plazas, crossings and glass bounce UV onto uncovered skin. The live index on this page is the open-sky reading. Treat lunch outside as full-sun time whenever it is 3 or above.

UV index in Edmonton today

Edmonton's long summer days and river valley trails mean extended UV exposure. Clear prairie air pushes the index into the high and very high bands through July and August.

Live reading · data by Open-Meteo · reference monitoring by ARPANSA

Today and tomorrow in Edmonton

Peak UV, temperature and conditions for Edmonton. Tomorrow’s peak is the number to plan around if you’re heading out in the middle of the day.

Weather conditions right now

Cloud and rain cut heat more than they cut UV. A partly cloudy day in Edmonton can still sit at protection levels. Why you burn on cloudy days.

When Edmonton needs sun protection

Sun protection is typically needed from May through September in Edmonton, with late-spring clear days crossing UV 3.

The threshold, per SunSmart and ARPANSA: whenever UV reaches 3 or above, Slip on covering clothing, Slop on SPF 50+ sunscreen, Slap on a hat, Seek shade and Slide on sunglasses. Read the full sun safety guide.

Where the UV adds up in Edmonton

Long, happy hours outdoors are where exposure quietly accumulates. Local favourites where the five S’s earn their keep:

North Saskatchewan River valley
Hawrelak Park
Louise McKinney Riverfront
Elk Island day trips

The UV scale at a glance

0–2Low
3–5Moderate
6–7High
8–10Very high
11+Extreme

Frequently asked questions

When does Edmonton need sun protection?: Whenever the UV index is 3 or above. In Edmonton that is typically from May through September, and any clear spring or fall day UV reaches 3. Health authorities use the same UV Index threshold worldwide.
Does Edmonton need sun protection in winter?: Not every day. Midwinter middays in Edmonton often sit below UV 3, but clear late-winter and early-spring days cross the threshold before summer fully arrives. Check the live index.
Does city shade protect you from UV in Edmonton?: Only while you stay in it. Buildings cut some sky, but plazas, crossings and glass bounce UV onto uncovered skin. The live index on this page is the open-sky reading. Treat lunch outside as full-sun time whenever it is 3 or above.