Last updated: June 2, 2025
In the serene surroundings of Nahanni Butte, Canada, staying informed about the UV Index is crucial for protecting your skin and overall health. Understanding UV levels is essential not only for sunburn prevention but also for reducing the long-term risks associated with skin cancer. In this remote area characterized by a Dfc climate, residents and visitors alike should be aware of the typical UV exposure risks, especially during peak hours when the index reaches levels of 5 to 6 from noon to 3 PM. By keeping an eye on the UV Index, you can enjoy the beauty of Nahanni Butte while ensuring your skin remains safe from harmful rays.
At dawn, the UV Index starts low at 1 by 07:00, indicating minimal sun exposure risk. As the sun rises higher, it gradually increases, reaching 2 by 09:00 and then hitting 3 by 10:00. The peak UV intensity occurs between 12:00 and 15:00, with values of 5 and 6 respectively, highlighting the importance of sun protection during these hours. After 15:00, the index begins to taper off, returning to 4 at 17:00 and then falling to 2 by 19:00. Stay safe and protected, especially during the midday hours when the UV rays are at their strongest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 3 | moderate | 30 min |
| 11:00 | 4 | moderate | 30 min |
| 12:00 | 5 | moderate | 30 min |
| 13:00 | 5 | moderate | 30 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
Throughout the year, UV index levels exhibit seasonal variations that influence sun exposure risks. From January to February, the UV index remains low at 1, allowing for a burn time of 45 minutes without significant risk. However, as March approaches, the index rises to 3, marking the start of a moderate exposure category, with a reduced burn time of 30 minutes. April sees this trend continue with a UV index of 4. The summer months of May through August are particularly high-risk, with a UV index reaching 6, warranting vigilance as burn times decrease to 25 minutes. Post-summer, September drops back to a moderate level of 4, followed by a return to low risk in October through December, with burn times again stretching to 45 minutes. Visitors and residents should be especially cautious during the high-risk months of May to August, ensuring proper sun protection measures are taken, such as wearing sunscreen, protective clothing, and seeking shade during peak hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nahanni Butte | 1 | 1 | 3 | 4 | 6 | 6 | 6 | 6 | 4 | 2 | 1 | 1 |
| 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 |
| 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 |