Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Saint-Antoine, Canada, where exposure to ultraviolet radiation can vary significantly throughout the day. The UV levels in this region, characterized by a Dfb climate, peak during midday, reaching indices of 8 at 1 PM and 2 PM—indicating a high risk of harm from unprotected sun exposure. Being aware of these levels is essential for sunburn prevention and maintaining long-term skin health. As you enjoy the outdoors in this picturesque locale, it's important to take proactive measures against harmful UV rays to ensure safe and enjoyable activities under the sun.
The UV Index throughout the day reveals a stark rise in solar intensity as the sun reaches its peak. Starting at a mild 1 at 07:00, it gradually climbs to a noteworthy 8 by 13:00, signaling the need for sun protection during these hours. The intensity remains high at 8 until 14:00, after which it begins to taper off, dropping to 5 by 16:00 and falling further to 1 by 19:00. This data underscores the importance of safeguarding your skin, especially during the midday hours when the UV levels are most hazardous. Remember to protect yourself from the sun's rays when the UV Index is at its highest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so do the UV levels, significantly impacting exposure risks for residents and visitors. January and December feature low UV indexes (2), allowing for extended safe exposure times of up to 45 minutes. By February and March, the UV index rises to moderate levels (3 and 5), reducing burn time to 30 minutes. The transition to April sees a notable increase to a high UV index of 7, further shortening safe exposure time to 25 minutes. The peak months for UV exposure occur from May to August, where the index reaches very high levels (8 and 9), drastically limiting safe sun exposure to just 15 minutes. September marks a slight decline with a high index of 7, while October and November revert to moderate levels (5 and 3) with 30 minutes of safe exposure. To safeguard against harmful UV rays, it is crucial for individuals to be particularly cautious during the high-risk months of April to August, using sunscreen, wearing protective clothing, and seeking shade whenever possible.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Edmonton UVI | 2 | 3 | 5 | 6 | 7 | 7 | 8 | 7 | 6 | 4 | 2 | 1 |
| Calgary UVI | 2 | 3 | 4 | 6 | 8 | 8 | 9 | 8 | 7 | 4 | 2 | 1 |
| Saint-Antoine | 2 | 3 | 5 | 7 | 8 | 9 | 8 | 8 | 7 | 5 | 3 | 2 |
| Montreal UVI | 2 | 4 | 5 | 7 | 9 | 9 | 8 | 8 | 7 | 5 | 3 | 2 |
| Ottawa UVI | 2 | 4 | 5 | 8 | 9 | 9 | 8 | 8 | 7 | 5 | 3 | 2 |
| Toronto UVI | 2 | 4 | 5 | 8 | 9 | 9 | 9 | 9 | 7 | 5 | 3 | 2 |