UV Index
UV Index
Today's UV index in Barrie, Canada 
will be up to 6.6, 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 Barrie's UV index reaching 6.6, 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.
The UV index in Barrie, Canada, varies throughout the year, reaching its highest levels in the summer months around 6 to 7. In winter, the UV index is much lower, often around 1 or 2.
Barrie experiences four distinct seasons with cold, snowy winters and warm, humid summers. Spring and fall are mild with moderate rainfall and changing foliage colors. Snow typically starts in late November and lasts until March or April.
Compared to the wider Ontario region, Barrie is cooler in the winter due to its proximity to Lake Simcoe. It has more snow than southern cities like Toronto but less severe winters than northern Ontario. Neighboring regions like Muskoka are colder and snowier.
See the UV index hour by hour for Barrie, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.