Last updated: July 2, 2025
In Bothwell, Canada, being aware of the UV Index is crucial for protecting your skin from the sun's harmful rays. Understanding UV levels helps you strategize outdoor activities and minimizes the risk of sunburn, ensuring long-term skin health. Given Bothwell's Dfb climate, which features warm summers, residents should be especially vigilant during peak UV times—which can reach a maximum index of 10 around midday. By staying informed about the UV Index, you can enjoy the beautiful outdoors while safeguarding your skin from potential damage.
The UV Index data illustrates a dynamic shift throughout the day, peaking in the afternoon hours. Starting at a mild 1 at 7 AM and 8 AM, the index climbs steadily, reaching a distinctive 3 by 9 AM. By 11 AM, it surges to 7, and the intensity escalates further with a peak of 10 at 1 PM—making it the most critical time for sun exposure. As the afternoon progresses, the index gradually declines, settling at 6 by 4 PM and tapering off to 1 by 7 PM. This data serves as a crucial reminder to take sunscreen precautions especially between 11 AM and 2 PM, when the sun’s rays are the strongest.
| 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 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 8 | very high | 15 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, the UV Index exhibits significant seasonal fluctuations, with the highest levels occurring during the summer months. From April to September, the UV Index peaks, reaching a severe 10 in June and July, indicating very high risk of harm from unprotected sun exposure, with a burn time of just 15 minutes. In contrast, the winter months, notably December and January, see a marked decrease in UV exposure, with indexes at 2 and 3 respectively, translating to low to moderate risk and longer burn times of 30-45 minutes. Visitors and residents are advised to take extra precautions during the high-risk months of April through September, including wearing protective clothing, applying sunscreen, and seeking shade during peak hours to minimize the risk of sunburn and long-term 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 |
| 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 |
| Bothwell | 3 | 4 | 5 | 8 | 9 | 10 | 10 | 9 | 8 | 5 | 4 | 2 |