Last updated: May 3, 2025
In Mistissini, Canada, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding the varying UV levels throughout the day helps residents and visitors alike to take necessary precautions against sunburn and long-term skin damage. With a climate characterized by cool summers in the Dfc zone, the potential for UVA and UVB exposure rises significantly during peak hours, especially between 11 AM and 1 PM when the UV Index hits a maximum of 9. By staying informed about the UV Index, you can enjoy the beautiful outdoor scenery of Mistissini while protecting yourself from the effects of excessive sun exposure.
The UV Index peaks dramatically as the day progresses, starting from a low 1 at 07:00. By 09:00, it rises to a moderate 4, indicating the sun's rays are becoming more intense. The intensity continues to escalate, reaching 6 by 10:00 and hitting its maximum of 9 at both 12:00 and 13:00, signaling a time when precautions should be taken to protect your skin. As the afternoon rolls in, the index begins to dip, dropping to 8 at 14:00, and further declining to 6 by 15:00. By the evening, the UV Index retreats to 4 at 16:00, and continues to ease to 1 by 19:00, providing a gentle reminder of the sun's fading strength. Be mindful of these fluctuations to enjoy your outdoor activities safely!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV index levels indicate significant seasonal changes in sun exposure. From January to February, the index starts low and rises to moderate, with burn times of 45 minutes and 30 minutes, respectively. March marks the transition to a moderate UV index, peaking at 7 in April, which signals a high risk for sunburn with a reduced burn time of just 25 minutes. The months of May to July are particularly high-risk, as they feature very high UV levels of 9 and 8, respectively, resulting in burn times as short as 15 minutes. In contrast, August to September shows a slight decline to high levels, while October sees a return to moderate exposure. As winter approaches, November and December experience the lowest UV levels, allowing for greater safety with longer burn times of 45 minutes. Visitors and residents are advised to take precautions during high-risk months (May through July) by wearing sunscreen, protective clothing, and seeking shade during peak hours to minimize the risk of UV-related skin 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 |
| Mistissini | 2 | 3 | 5 | 7 | 9 | 8 | 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 |