UV Index
UV Index
Today's UV index in Oakville, Canada 
will be up to 7.3, 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: 2025-05-11
With Oakville's UV index reaching 7.3, 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 Oakville, Canada, varies throughout the year, typically reaching higher levels in the summer months around 6 to 7 and dropping to low levels near 0 or 1 in winter. Oakville experiences four distinct seasons. Winters are cold with snow, springs are cool and rainy, summers are warm and sometimes humid, while autumns are mild with colorful leaves. This seasonal cycle influences outdoor activities and daily life. Compared to much of Canada, Oakville has milder winters due to its location near Lake Ontario. It is cooler than southern U.S. cities but warmer than northern Canadian towns, striking a balance between continental and lake-influenced climates.
See the UV index hour by hour for Oakville, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.