Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Lorne, Canada, where the sun's rays can pose a significant risk to skin health, especially during the warmer months. With the UV Index peaking at 8 during midday hours, awareness of these levels is vital for preventing sunburn and long-term skin damage. Lorne enjoys a Dfb climate, characterized by warm summers and cold winters, which means that even on cloudier days, UV exposure can still be high. By monitoring the UV Index, you can make informed decisions to protect your skin while enjoying the beautiful outdoor activities that Lorne has to offer.
As the sun rises, the UV Index starts off low at 1 by 7:00 AM, perfect for a leisurely morning stroll. However, as the day progresses, intensity increases dramatically. By 9:00 AM, it climbs to 3, and by 11:00 AM, it reaches 6, signaling the need for sun protection. The peak comes at 1:00 PM where the UV Index hits a high of 8, remaining intense until 2:00 PM. Afterward, it gradually declines to 5 by 4:00 PM, and further drops to 1 by 7:00 PM. Keep an eye on the UV levels to enjoy the sun safely throughout the day!
| 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 | 4 | 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 | 7 | 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 |
As the year progresses, UV Index levels exhibit significant seasonal variations, indicating a notable increase in sun exposure risk during the warmer months. From January to March, the UV Index starts relatively low, peaking at a moderate level of 5 in March, when burn time is reduced to 30 minutes. However, by April, the index escalates sharply to 8, marking the beginning of the high-risk months, which continue through June with a peak of 10 in June. July and August maintain a high UV Index of 8, requiring caution for both residents and visitors. As summer transitions to fall, the UV Index gradually decreases, dropping to 4 in October and returning to low levels of 2 in November and December. During the high-risk months of April to September, it is essential to take protective measures such as wearing sunscreen, hats, and sunglasses, and seeking shade during peak hours to avoid overexposure.
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 |
| Lorne | 2 | 3 | 5 | 8 | 8 | 10 | 8 | 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 |