Last updated: July 2, 2025
Understanding the UV Index is essential for residents of Miramichi, Canada. As the sun's intensity varies throughout the day, being aware of UV levels can significantly impact sunburn prevention and overall skin health. Particularly in Miramichi’s Dfb climate, where the summer sun can reach a maximum UV Index of 8, it's crucial to take precautions during peak hours, typically between 11 AM and 3 PM. By staying informed about UV exposure risks, you can enjoy the outdoors while keeping your skin protected.
The UV Index throughout the day reveals a clear peak in sun intensity, providing a vivid illustration of solar exposure. Starting at 07:00, the index is a mild 1, indicating minimal risk. As the sun climbs higher, it rises to 3 by 09:00 and hits 6 at 11:00, urging early protectors to apply their sunscreen. The intensity reaches its zenith at 12:00, with a robust 7, and maintains 8 between 13:00 and 14:00, suggesting it's crucial to seek shade or cover during these hours. As the afternoon progresses, the figures gently decline, dipping to 4 at 17:00 and finally returning to a low 1 by 19:00. This hourly dance of the UV Index serves as a reminder to be sun-smart and make the most of outdoor activities while remaining vigilant during peak hours.
| 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 | 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 |
Throughout the year, the UV Index undergoes significant changes, indicating varying levels of sun exposure risk. From January to February, UV levels start low, with a minimum risk of sunburn. However, as March approaches, UV levels rise to a moderate level of 5, marking the transition into higher risk months. The summer months of May to August experience the peak UV intensity, with values reaching up to 9, classified as very high, resulting in a burn time of just 15 minutes. Therefore, May through August are considered the high-risk months for sun exposure. Visitors and residents should take precautionary measures during these months, such as wearing sunscreen, protective clothing, and seeking shade during peak sun hours. As we move into September to November, UV levels gradually decline, making outdoor activities safer, but still warranting some caution. Remember, even in winter months like December and January, it's wise to stay vigilant about sun exposure, especially if engaging in activities like skiing or snowboarding where reflection increases UV risk.
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 |
| Miramichi | 2 | 3 | 5 | 7 | 8 | 9 | 8 | 8 | 7 | 4 | 3 | 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 |