Last updated: May 3, 2025
In Corner Brook, Canada, being aware of the UV Index is essential for maintaining skin health and preventing sunburn. Understanding the UV levels throughout the day helps residents and visitors alike protect themselves from harmful ultraviolet radiation, particularly during summer months when the sun’s intensity peaks. With a Dfb climate, Corner Brook experiences significant seasonal variations in weather, making it crucial to monitor UV exposure—especially since midday levels can reach as high as 8. By paying attention to the UV Index, you can enjoy the outdoors safely while minimizing the risk of skin damage.
Starting early in the morning, the UV Index begins at a mild 1 at 07:00, gradually rising through the hours. By 09:00, it reaches 4, marking the onset of stronger sunlight. The intensity peaks between 11:00 and 13:00, with a robust 8, indicating a high risk of harm from unprotected sun exposure. From there, it starts to gradually decline, dipping to 6 by 15:00 and falling further to 4 at 16:00. As the sun begins to set, the index decreases significantly, dropping back to 1 by 18:00 and maintaining that lower level until evening. This day’s UV trends serve as a reminder to protect your skin during peak hours, especially when the 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 | 4 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV exposure levels vary significantly, with high-risk months typically occurring from April to August. During this period, the UV Index peaks at 9 in June, categorized as very high, where burn time drops to just 15 minutes. Specifically, May and June present especially elevated risk, while March marks the transition into spring with a moderate exposure level of 5. Conversely, winter months such as January (UV Index 2) and December (UV Index 1) offer a much lower risk, with burn times stretching up to 45 minutes. Visitors and residents are strongly advised to use sun protection during the spring and summer months, including wearing sunscreen, protective clothing, and seeking shade, especially during peak hours. Remember to stay informed and assess your local UV Index to safeguard your skin throughout the seasons.
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 |
| Corner Brook | 2 | 3 | 5 | 7 | 8 | 9 | 8 | 8 | 6 | 4 | 2 | 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 |