Last updated: July 2, 2025
Understanding the UV Index in Hornby Island, Canada is crucial for protecting your skin and maintaining overall health. As UV levels can vary significantly throughout the day, being aware of these levels helps in preventing sunburn and reducing the long-term risks of skin damage. With Hornby Island's temperate maritime climate leading to frequent exposure to the sun, especially during peak hours when the UV Index can reach up to 9, it’s essential for residents and visitors alike to stay informed and use sun protection strategies. Empower yourself with knowledge to enjoy the beautiful outdoors safely!
The UV Index throughout the day showcases a dynamic pattern of intensity. Starting at a mild 1 at 07:00, it gradually escalates as the sun climbs higher. By 10:00, it reaches 5, signaling a noteworthy rise. The peak occurs at 13:00, with a striking 9, indicating a high potential for harm without protection. Following this zenith, the index starts to wane, dropping to 6 by 16:00 and further diminishing to 1 by 19:00. This illustrates a critical window from 10:00 to 14:00 when caution is essential for outdoor enthusiasts looking to enjoy the sun safely.
| 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 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV levels vary significantly, with the most intense exposure occurring during the summer months. May through August are particularly high-risk months, showcasing UV Index values reaching up to 9 in July. During this period, the burn time decreases to just 15 minutes, indicating a need for heightened sun safety precautions. In contrast, the winter months of January, November, and December present low UV levels (UV Index 1-2), allowing for longer exposure times of up to 45 minutes without immediate risk of sunburn. Visitors and residents should take extra care from April to August by wearing protective clothing, using sunscreen, and seeking shade during peak sunlight hours to minimize the risk of skin damage.
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 |
| Hornby Island | 2 | 3 | 4 | 6 | 7 | 8 | 9 | 8 | 6 | 4 | 2 | 1 |
| Calgary UVI | 2 | 3 | 4 | 6 | 8 | 8 | 9 | 8 | 7 | 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 |