UV index in Sunny Slope today
Sunny Slope in Ontario sits inland at 45.6°N, where dry air and fewer clouds often mean harsher UV than the temperature suggests. Summer middays 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 Sunny Slope
Peak UV, temperature and conditions for Sunny Slope. 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 Sunny Slope can still sit at protection levels. Why you burn on cloudy days.
When Sunny Slope needs sun protection
Sun protection is needed in Sunny Slope typically from May through September, and any clear spring or fall day UV reaches 3. Inland heat or a cool change does not change the UV index; go by the number, not how the day feels.
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 Sunny Slope need sun protection?
- Whenever the UV index is 3 or above. In Sunny Slope 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 Sunny Slope need sun protection in winter?
- Not every day. Midwinter middays in Sunny Slope often sit below UV 3, but clear late-winter and early-spring days cross the threshold before summer fully arrives. Check the live index.
- Can you burn on a cool day in Sunny Slope?
- Yes. UV is not heat. A cool, windy or lightly cloudy day in Sunny Slope can still sit at UV 3 or above, especially from spring through autumn. Temperature on this page is for context only; the UV number is what decides protection.