UV Index
UV Index
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Today's UV index in Sudbury, Canada 
will be up to 1.2, indicating low risk of harm from the sun's UV rays for the average person. Check our tips for today to make sure you're safe in the sun.
Today, the UV index suggests low sun danger (0-2) in Sudbury, reaching up to 1.2. Remember sunglasses and SPF 30+ on sunny days, and be cautious around reflective surfaces like sand, water, and snow for increased UV exposure.
Read more here about the climate and sun exposure in and around Sudbury.
The UV index in Sudbury, Canada ranges from 1 (low) to 11+ (extreme). In summer (June to August), the UV index typically reaches 7-9 (high), which means it is crucial to protect your skin and eyes from the sun's harmful rays. During winter (December to February), the UV index drops to 1-3 (low), but it's still important to use sunscreen and wear protective clothing during outdoor activities.
Sudbury experiences four distinct seasons. Spring (March to May) brings fluctuating temperatures, with highs ranging from 5-15 °C (41-59 °F). Summer (June to August) is warm, with temperatures reaching 20-30 °C (68-86 °F). Fall (September to November) is mild, with temperatures ranging from 10-20 °C (50-68 °F). Winter (December to February) is cold, with temperatures dropping to -15 to -25 °C (5 to -13 °F). Snow is common, and temperatures often feel colder due to wind chill.
Compared to its region, Sudbury receives ample sunlight throughout the year. The city is situated in the Canadian Shield, which offers less shade from trees compared to other regions. This means that Sudbury receives more direct sun exposure. It's important to take precautions, especially during summer, to avoid sunburn and harmful effects of excessive UV radiation.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Sudbury. It's designed to provide you with a better understanding of the yearly weather and sun exposure.