Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Corner Brook, Canada, especially given the region's Dfb climate, which features significant sun exposure during warmer months. By being aware of UV levels, you can effectively prevent sunburns and safeguard your skin’s health. Daily UV readings often peak in the early afternoon, reaching levels of 8—a reminder of the potential risks associated with prolonged sun exposure. Stay informed and take the necessary precautions to enjoy the beautiful sunny days safely!
The UV Index data throughout the day reveals a clear pattern of increasing sun intensity as the morning progresses. Starting off at a low 1 at 07:00, the index steadily climbs, reaching a moderate 6 by 11:00. The highest peaks occur during the noon hours, soaring to a significant 8 at 12:00 and maintaining this level until 13:00. As the afternoon rolls in, the UV Index begins to decline, dropping to a comfortable 4 by 16:00 and tapering off to 1 by 19:00. It's a vivid reminder to stay sun-safe during those peak hours, especially between 12:00 and 13:00, when protection from UV rays is crucial.
| 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 | 5 | moderate | 30 min |
| 11:00 | 6 | 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 | 2 | 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 |