UV Index
UV Index
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Today's UV index in Sudbury, Canada 
will be up to 4.1, indicating a moderate level of sun exposure for the average person. Check the annual sun radiation in the city and our tips for today to make sure you're safe in the sun.
With a UV index reaching up to 4.1 in Sudbury, stay shaded during midday when the sun is strongest; wear protective clothing, a wide-brimmed hat, UV-blocking sunglasses; apply SPF 30+ sunscreen every 2 hours, even on cloudy days; and be cautious of heightened UV on bright surfaces.
The UV index in Sudbury, Canada can reach high levels during the summer months, with a peak in June. It is important to be aware of the UV index and protect yourself accordingly.
Sudbury experiences four distinct seasons. Winters are cold and snowy, summers are warm and humid, spring is mild and wet, and fall brings crisp air and vibrant foliage. Each season offers unique activities for residents and visitors to enjoy.
Compared to its region, Sudbury has a more continental climate with greater temperature fluctuations between seasons. It also has more snowfall than many neighboring cities in the United States. However, like much of Canada, Sudbury has a shorter growing season than many countries further south.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Sudbury. It's designed to provide you with a better understanding of the yearly weather and sun exposure.