Last updated: June 2, 2025
In St-Jean-Port-Joli, Canada, being aware of the UV Index is crucial for protecting your skin and overall health. As the sun's rays can cause sunburn and increase long-term skin damage, understanding UV levels helps you make informed decisions about sun exposure. Nestled in a Dfb climate zone, this charming town experiences varying UV exposure, with peak levels reaching 9 between noon and early afternoon. Stay informed and safeguard your skin by checking the UV Index before heading outdoors to enjoy all the beauty St-Jean-Port-Joli has to offer!
The UV Index peaks significantly throughout the day, starting with a low 1 at 07:00 and rapidly climbing as the sun rises. By 10:00, it reaches 6, indicating a moderate risk for harm, which escalates sharply to a high of 9 between 12:00 and 13:00. This substantial index signifies that precautions are necessary, especially with the sun at its strongest. As the afternoon progresses, the UV Index gradually declines, dipping to 5 by 16:00, and further tapering off to a mere 1 by 19:00. For those outdoors, staying protected during the peak hours is critical for skin health!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | 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 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences notable changes, with high-risk months primarily occurring from April to August. The UV Index peaks at 9 during May and June, indicating a very high exposure category, with a burn time of only 15 minutes. As the sun strengthens in March (UV Index 5) and peaks in late spring and summer, residents and visitors should take extra precautions during these months by wearing protective clothing, using sunscreen, and seeking shade to prevent skin damage. In contrast, the UV Index is at its lowest in January (UV Index 2) and December (UV Index 1), when exposure risk is considered low. During these months, individuals have a longer burn time of 45 minutes but should remain vigilant as UV rays can still be harmful. Understanding these seasonal UV changes is essential for maintaining 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 |
| St-Jean-Port-Joli | 2 | 3 | 5 | 7 | 9 | 9 | 8 | 8 | 6 | 5 | 3 | 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 |