UV index in Mugg'S Island today
Mugg'S Island is an island community in Ontario at 43.6°N, with water on more than one side and little inland shade. Summer middays typically reach 8–10 (very high), and glare comes off the sea from every direction. 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 Mugg'S Island
Peak UV, temperature and conditions for Mugg'S Island. 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 island day in Mugg'S Island can still sit at protection levels. Why you burn on cloudy days.
When Mugg'S Island needs sun protection
Sun protection is needed in Mugg'S Island typically from May through September, and any clear spring or fall day UV reaches 3. With water on more than one side, reflection is the default, not a beach-only problem.
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 Mugg'S Island need sun protection?
- Whenever the UV index is 3 or above. In Mugg'S Island 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 Mugg'S Island need sun protection in winter?
- Not every day. Midwinter middays in Mugg'S Island 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 Mugg'S Island?
- 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.