Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Wynndel, Canada, where the Dfc climate brings unique sun exposure challenges. Being aware of UV levels helps in preventing sunburns and protecting skin health, especially during peak hours when the Index can soar to 9. With typical values reaching their highest between 11:00 AM and 1:00 PM, it’s essential to take precautions while enjoying the sun. By monitoring the UV Index, you can effectively safeguard your skin from harmful rays and make informed decisions about outdoor activities.
The UV Index peaks significantly throughout the day, starting with a low 1 at 07:00 and rapidly climbing as the sun rises. By 10:00, it reaches 6, indicating a moderate risk for harm, which escalates sharply to a high of 9 between 12:00 and 13:00. This substantial index signifies that precautions are necessary, especially with the sun at its strongest. As the afternoon progresses, the UV Index gradually declines, dipping to 5 by 16:00, and further tapering off to a mere 1 by 19:00. For those outdoors, staying protected during the peak hours is critical for skin health!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | 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 |
Throughout the year, the UV Index demonstrates notable seasonal changes, impacting sun exposure risk. High-risk months, particularly May through August, experience a very high UV Index of 9, where even brief periods of sun exposure can lead to skin damage, with a burn time of just 15 minutes. April and September present high UV levels (7), reducing burn times to 25 minutes. In contrast, the winter months of January and December show lower UV levels, making them less risky with burn times of 45 minutes and 30 minutes, respectively. Visitors and residents are advised to prioritize sun safety measures from April to August, including wearing sunscreen, protective clothing, and seeking shade during peak sun hours. It's essential to remain vigilant even during moderate months, as UV exposure can accumulate.
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 |
| Wynndel | 2 | 3 | 5 | 7 | 9 | 9 | 9 | 9 | 7 | 4 | 3 | 1 |
| 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 |