Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Warren, Canada, as it plays a significant role in protecting your health under the sun. With the potential for harmful UV radiation levels, especially during peak hours, being aware of these fluctuations can help you prevent sunburn and maintain skin health. The Dfb climate in Warren brings a variety of weather conditions, but on sunny days, UV exposure risks can be elevated, particularly from late morning to early afternoon when the index peaks at 7. Stay informed and enjoy the outdoors safely by keeping an eye on the UV Index!
As the sun rises, the UV Index remains low, starting at 1 at 07:00 and 08:00, making it a gentle time to venture outdoors. By 09:00, it ramps up to 3, signaling the beginning of the day’s peak sun exposure. 10:00 sees a rise to 4, and things heat up significantly by 11:00 with a UV Index of 5. The highest point peaks at 12:00, 13:00, and 14:00 with a striking 7, urging everyone to take precautions. As the afternoon progresses, the UV Index gradually declines to 6 by 15:00, and continues to drop to 3 by 17:00. Finally, it winds down for the evening, returning to 2 at 18:00 and settling back to 1 by 19:00, indicating that the sun is setting and the day’s harshest rays are behind us. Enjoy the outdoors, but don’t forget your sunscreen during those midday hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 6 | 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 |
The UV Index exhibits significant seasonal variations, with the highest levels observed during the summer months. High-risk months include June, July, and August, when the UV Index reaches as high as 9, indicating very high exposure risk and a burn time of just 15 minutes. In contrast, the lowest UV levels occur in January and December, categorized as low with a burn time of 45 minutes. Visitors and residents should take extra precautions, particularly from April to August, by wearing protective clothing, using sunscreen, and limiting sun exposure during peak hours to reduce 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 |
| Calgary UVI | 2 | 3 | 4 | 6 | 8 | 8 | 9 | 8 | 7 | 4 | 2 | 1 |
| Warren | 2 | 4 | 4 | 7 | 7 | 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 |