Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Harbour Breton, Canada, where the climate delivers a unique blend of sun exposure and seasonal variation. Being aware of the UV levels not only helps in preventing painful sunburns but also plays a vital role in maintaining long-term skin health. In Harbour Breton, particularly during the summer months, UV Index readings can soar as high as 10 around noon, signaling an increased risk for skin damage. With typical exposure risks peaking when the sun is at its strongest, staying informed about the UV Index can empower you to enjoy the sun safely while protecting your skin.
The UV Index throughout the day reveals a gradual rise in intensity, peaking between 12:00 PM and 1:00 PM at an impressive 10, indicating a heightened need for sun protection. The morning starts off mild, with readings of 1 at 7:00 AM and climbing to 3 by 8:00 AM. As the sun climbs higher, the index escalates sharply to 7 by 10:00 AM, reaching its maximum of 8 at 11:00 AM. After noon, the index remains high but begins to decline, dipping to 9 at 2:00 PM, before settling to 5 by 4:00 PM. As the evening approaches, the values gently retreat to 3 at 5:00 PM, 2 by 6:00 PM, and finally back to 1 at 7:00 PM, illustrating the arc of the sun's strength throughout the day.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | 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, the UV Index experiences notable fluctuations, indicating varying levels of sun exposure risk. The months of May through August represent the high-risk period, with UV Index levels ranging from 8 to 10, categorized as very high. During these months, the recommended burn time significantly decreases to just 15 minutes, highlighting the need for diligent sun protection, including sunscreen, protective clothing, and seeking shade. In contrast, during the low-risk months of January, November, and December, the UV Index remains at 2 or lower, allowing for a safer outdoor experience with burn times extending up to 45 minutes. Visitors and residents are advised to remain vigilant about UV exposure, particularly in the summer months, ensuring they take appropriate precautions to safeguard their skin against potential 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 |
| Harbour Breton | 2 | 3 | 5 | 6 | 8 | 10 | 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 |