Does Bay Street Corridor need sun protection in winter?

Not every day. Midwinter middays in Bay Street Corridor 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 the water make UV worse in Bay Street Corridor?

It can. Sand and water reflect ultraviolet, so skin that is not covered (including under the chin and on the tops of feet) picks up extra dose on top of the direct sun. The live UV index on this page is the sky reading; reflection is on top of that.

UV index in Bay Street Corridor today

Bay Street Corridor sits on the Ontario coast at 43.7°N, where sand and water bounce extra UV onto uncovered skin. Sea breeze cools the air, not the ultraviolet: summer middays here typically reach 8–10 (very high). This is cool-temperate Canada: summer UV still climbs into the very high band, and spring arrives before the weather feels hot.

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

Today and tomorrow in Bay Street Corridor

Peak UV, temperature and conditions for Bay Street Corridor. 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 beach day in Bay Street Corridor can still sit at protection levels. Why you burn on cloudy days.

When Bay Street Corridor needs sun protection

Sun protection is needed in Bay Street Corridor typically from May through September, and any clear spring or fall day UV reaches 3. On the water or the sand, reflection can lift your dose even when the forecast UV already looks high.

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.

The UV scale at a glance

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

Frequently asked questions

When does Bay Street Corridor need sun protection?: Whenever the UV index is 3 or above. In Bay Street Corridor 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 Bay Street Corridor need sun protection in winter?: Not every day. Midwinter middays in Bay Street Corridor 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 the water make UV worse in Bay Street Corridor?: It can. Sand and water reflect ultraviolet, so skin that is not covered (including under the chin and on the tops of feet) picks up extra dose on top of the direct sun. The live UV index on this page is the sky reading; reflection is on top of that.