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Sudbury UV Index Today

Day Summary

The UV index in Sudbury, Canada Flag of Canada will reach a high of 6.8 today. This means a high level of sun exposure. See our tips below to stay safe!

Last checked: 2025-08-01

Hourly Forecast Chart

Today's Safety Tips

Be careful! The sun's rays are strong. Try to stay in the shade between 10 a.m. and 4 p.m. Wear a hat, sunglasses, and reapply SPF 30+ sunscreen every 2 hours.

Sudbury's UV Index

Sudbury's UV index varies seasonally, with low values in winter and higher values in summer, typically ranging from 0 to 7. The UV index peaks around June and July.

Weather Seasons

UV index

Sudbury has cold, snowy winters and warm, humid summers. Spring and fall are short and can be unpredictable, with temperatures gradually changing. Snow usually covers the ground from November to March.

Sudbury's Climate

Compared to southern parts of Canada and the U.S., Sudbury is colder in winter with more snow. Its summers are milder than those farther south. Neighboring Ontario areas have similar weather but may be a bit warmer or cooler depending on location.

Hourly UV Index Trend

See the UV index hour by hour for Sudbury. When the level is high, it's smart to find some shade.

Disclaimer

* The information on this page about the UV index in Sudbury is for educational purposes only. It is not a substitute for professional medical advice. Always consult a doctor for any health concerns.