Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Calmar, Canada, where sun exposure can vary significantly throughout the day. With the UV Index peaking in the early afternoon, awareness of these levels is essential for preventing sunburn and protecting your skin health. Calmar's Dfb climate features warm summers with potential for high UV exposure, making it all the more important to stay informed about daily UV fluctuations. By monitoring the UV Index, you can enjoy the outdoors safely while protecting your skin year-round.
As the sun rises, the UV Index begins its gentle ascent, peaking at 07:00 with a low score of 1. By 09:00, it approaches moderate levels, reaching 2. The real magic happens between 10:00 and 13:00, where the index climbs sharply, hitting 6 at 12:00 and peaking at 7 during 13:00. From here, we see a gradual decline: a drop to 6 at 15:00, settling into the 5 range by the late afternoon. As the day winds down, the UV levels decrease further, falling back to 2 by 18:00, and finally resting at 1 as daylight fades into evening. Stay protected! Remember, the sun's rays are most potent during the midday hours!
| 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 | 4 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 6 | 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 | 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 exposure levels occurring during the summer months. From May to August, the UV Index peaks at 7 to 8, categorizing these months as high to very high risk for sunburn, with burn times as low as 15 minutes in July. Visitors and residents are particularly advised to take precautions during these months, including seeking shade, wearing protective clothing, and applying sunscreen frequently. Conversely, the winter and early spring months (January, November, and December) present a much lower risk with UV Index values ranging from 1 to 2 and burn times extending to 45 minutes. Overall, while UV exposure increases steadily from February onwards, the most critical months for sun safety are June to August; vigilant sun protection during this time is essential.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Calmar | 1 | 3 | 4 | 5 | 7 | 7 | 8 | 7 | 6 | 4 | 2 | 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 |