Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Killarney, Canada, where the climate can lead to varying levels of sun exposure throughout the day. With peak UV levels reaching 9, it's important to recognize that even a few minutes of intense sunlight can result in sunburn, impacting skin health for both the short and long term. The Dfb climate zone contributes to distinct seasonal changes, making it essential to adapt sun protection measures accordingly. By staying informed about the UV Index, you can take proactive steps to protect your skin and enjoy the beautiful outdoors without compromise.
The UV Index throughout the day presents a fascinating dance of intensity, beginning with a gentle maximum of 1 at 7:00 AM, ideal for early risers. As the sun climbs higher, the index steadily rises, peaking at 9 between 1:00 PM and 2:00 PM, indicating a need for protective measures against harmful rays. The midday sun shines brightest with an 8 at 12:00 PM and slightly diminishes to 7 by 4:00 PM, providing a reminder for outdoor enthusiasts to stay cautious as afternoon approaches. As the day winds down, the index tapers off, descending to a 2 by 7:00 PM, allowing for a relaxed stroll into the evening. Embrace the sunshine wisely!
| 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 | 8 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
Throughout the year, the UV Index experiences significant seasonal changes, particularly peaking in the late spring and summer months. April to August are identified as high-risk months, with UV Index values reaching as high as 9, categorized as very high, indicating a burn time of just 15 minutes. Visitors and residents are strongly advised to take protective measures during these months, such as wearing sunscreen, sunglasses, and protective clothing, especially during midday hours when the sun's rays are most intense. From September to October, the risk decreases but remains moderate, so continued sun protection is recommended. In contrast, January, November, and December exhibit a low UV Index, allowing for safer outdoor activities with a longer burn time of 45 minutes; however, awareness is still essential to maintain skin health year-round.
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 |
| Killarney | 2 | 4 | 5 | 8 | 8 | 9 | 9 | 8 | 7 | 4 | 2 | 2 |
| 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 |