UV Index
UV Index
Today's UV index in Dorval, Canada 
will be up to 7.1, indicating a high level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-05-08
With Dorval's UV index reaching 7.1, protect your skin from harm by staying in shade, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours, especially between 10 a.m. and 4 p.m. when UV rays are strongest.
Dorval's UV index varies seasonally, with low levels in winter and higher levels in summer, typically peaking around 6 to 7 during the warmest months. UV exposure is generally moderate to high in summer. The city experiences cold winters with snow and ice, and warm, humid summers. Spring and fall bring mild temperatures and changing weather patterns, with spring often being wet and fall seeing crisp, cool conditions. Seasonal changes are distinct, with winter lasting from December to February and summer from June to August. Dorval's weather is influenced by its location near Lake Saint-Louis, part of the Saint Lawrence River system. Compared to the rest of Quebec, Dorval tends to have milder winters due to the nearby water bodies. It is cooler and wetter than many parts of southern Ontario. Compared to neighboring U.S. states like New York, Dorval generally has colder winters and a shorter growing season.
See the UV index hour by hour for Dorval, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.