UV Index
UV Index
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Today's UV index in Markham, Canada 
will be up to 1.4, indicating a low 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.
Today, the UV index suggests low sun danger (0-2) in Markham, reaching up to 1.4. Remember sunglasses and SPF 30+ on sunny days, and be cautious around reflective surfaces like sand, water, and snow for increased UV exposure.
The UV index in Markham, Canada can reach high levels during the summer months, with a maximum index of 9. It is important to protect your skin during these times.
Markham experiences four distinct seasons throughout the year. Winters are cold and snowy, with temperatures often dropping below freezing. Spring brings milder temperatures and blooming flowers. Summers are warm and sunny, with occasional heatwaves. Autumn sees the changing of leaves and cooler temperatures.
Compared to its region, Markham has milder winters than other parts of Canada due to its southern location. However, it still experiences colder temperatures than neighboring countries such as the United States. Summers in Markham are also typically cooler than those in the southern United States, but can still reach high temperatures.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Markham. It's designed to provide you with a better understanding of the yearly weather and sun exposure.