UV Index
UV Index
Today's UV index in Oshawa, Canada 
will be up to 8.9, indicating a very 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: 2025-06-21
With a UV index of 8.9 in Oshawa, it's crucial to safeguard your skin from harmful UV rays. Protect yourself by minimizing sun exposure, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours.
Oshawa's UV index varies through the year, typically lower in winter (around 1-2) and higher in summer (around 6-7), indicating stronger sun exposure during the warmer months.
The city experiences four distinct seasons: cold, snowy winters; mild springs with increasing warmth; warm, sometimes humid summers; and cool, colorful autumns before the cycle repeats.
Compared to other places in Canada, Oshawa has a moderate climate, warmer than northern regions but cooler than areas farther south in the U.S. It shares similar seasonal changes with nearby cities like Toronto.
See the UV index hour by hour for Oshawa, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.