Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Sherbrooke, Canada, where sun exposure during the warm months can lead to significant skin health risks. With UV levels peaking around midday—reaching a maximum of 9—awareness can help prevent sunburns and long-term skin damage. Sherbrooke's Dfb climate features distinct seasonal variations, making it essential for locals to stay informed about daily UV fluctuations to enjoy the sunshine safely. By learning about UV Index values, you empower yourself to take the necessary precautions and ensure a healthy experience outdoors.
The UV Index for today presents an intriguing journey through the hours. It starts off gently at 1 at 07:00, but as the morning progresses, it climbs swiftly to 2 by 08:00 and reaches a moderate 4 at 09:00. The sun intensifies its rays further, peaking at a robust 9 between 12:00 and 13:00—a reminder to take precautions against harmful UV exposure. Following this peak, the index gradually descends, dipping to 6 at 15:00, and mellowing down to 1 by 18:00. This pattern highlights the importance of seeking shade or applying sunscreen during the midday hours when UV radiation is most potent.
| 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 | 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 | 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, the UV Index experiences significant fluctuations, highlighting the need for awareness among visitors and residents. January and December register the lowest levels of UV exposure (Index 2), categorized as low, allowing for longer burn times of 45 minutes. As the seasons change, February and March see a slight increase, reaching a moderate exposure category (Index 3 and 5) with 30 minutes burn time. The risk escalates sharply from April to August, with a peak in May and June at a very high level (Index 9) and a minimal burn time of just 15 minutes. July and August maintain similar intensity before gradually tapering off in September with high risk (Index 7) and 25 minutes burn time. By October to November, conditions return to moderate, signaling a gradual decrease in UV exposure. Therefore, it’s crucial for everyone to protect their skin, especially during the high-risk months of April through August, by wearing sunscreen, protective clothing, and seeking shade when the UV Index is at its highest.
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 |
| Sherbrooke | 2 | 3 | 5 | 7 | 9 | 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 |