Last updated: May 3, 2025
In Fort Frances, Canada, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding UV levels helps residents and visitors alike to protect themselves from the harmful effects of the sun, especially during peak hours when the index soars to 8 around midday. With a Dfb climate, Fort Frances experiences distinct seasonal variations, leading to significant UV exposure risks during sunny days. By staying informed, you can enjoy the outdoors safely while safeguarding your skin from potential damage.
The UV Index throughout the day showcases a gradual rise in intensity, peaking at 8 between 1 PM and 2 PM, making this the most critical time for sun exposure. Starting the morning with a low index of 1 at 7 AM, the values steadily increase as the sun climbs higher; by 10 AM, it reaches 5, indicating moderate sun strength. As the sun continues its ascent, the index climbs to 6 at 11 AM and further escalates to 7 at noon, urging sun safety precautions. After hitting the afternoon high of 8, the index tapers off, dropping to 6 by 3 PM, before gradually descending to 1 by 7 PM. This daily cycle emphasizes the importance of protective measures during midday hours when the UV rays are at their strongest.
| 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 | 7 | high | 25 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 8 | very high | 15 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 |
Throughout the year, UV exposure fluctuates significantly, with high-risk months primarily from April to August. In April, the UV Index reaches a high level of 7, marking the beginning of increased skin exposure risk, which intensifies into the very high category of 8 and 9 during May, June, and July. Visitors and residents should take precautions particularly between April and August, where a burn can occur in as little as 15 minutes during the peak months. As summer fades into early fall, the UV Index decreases, returning to a moderate level by October and then to low levels in November and December. It's essential for everyone to practice sun safety by using sunscreen, wearing protective clothing, and seeking shade during peak hours, especially in the high-risk periods.
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 |
| Fort Frances | 2 | 3 | 5 | 7 | 8 | 9 | 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 |