UV Index
UV Index
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Today's UV index in Montréal, Canada 
will be up to 4.4, 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 4.4 in Montréal, 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 Montreal, Canada can reach intense levels during the summer months, with a maximum index of 9 or 10. In the winter, the index is much lower, rarely exceeding 2.
Montreal experiences four distinct seasons. Spring brings blooming flowers and mild temperatures, while summer is warm and humid with an average high of 25°C. Autumn sees beautiful foliage and cooler weather, and winter is cold and snowy with temperatures often well below zero.
Compared to its region and neighboring countries, Montreal's climate is moderate. Winter temperatures are milder than in many parts of Canada, and summer temperatures are cooler than in many nearby American cities. The city also receives more precipitation than many areas in the northeastern USA.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Montréal. It's designed to provide you with a better understanding of the yearly weather and sun exposure.