Last updated: July 2, 2025
Understanding the UV Index in Sainte-Therese, Canada is essential for safeguarding your skin and overall health. Being aware of UV levels can help prevent sunburn and reduce the risk of long-term skin damage. With its Dfb climate, Sainte-Therese experiences significant UV exposure, especially during peak hours when the index reaches levels of 8 around noon and early afternoon. Whether you’re enjoying outdoor activities or simply soaking up the sun, knowing the UV Index is key to staying safe under the rays!
As the sun rises, the UV Index begins its ascent, starting at a mere 1 at 7:00 AM. By 8:00 AM, it climbs to 2, but it’s by 9:00 AM that we see a moderate rise to 3. The intensity peaks between 11:00 AM and 1:00 PM, hitting a high of 8, indicating that sun protection methods should be in full swing. As the afternoon progresses, values slightly decrease, with the UV Index dropping to 6 by 3:00 PM and then gradually retreating to 1 by 7:00 PM. This hourly data serves as a reminder to stay vigilant about sun safety during the mid-day hours when UV exposure is at its highest.
| 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 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | 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 demonstrates notable seasonal changes, with higher values typically occurring during the late spring and summer months. From April through August, UV levels peak, particularly in May and June, where the index reaches 9, indicating a very high risk of harm from unprotected sun exposure and a burn time of just 15 minutes. July and August maintain UV levels of 8, also classified as very high. High-risk months are particularly concentrated from April to September, where residents and visitors are advised to take protective measures, such as wearing sunscreen, protective clothing, and seeking shade during the peak sun hours. Conversely, winter months such as January and December present a much lower risk, with a UV Index of 2 and low exposure category, allowing for more time outdoors without significant risk. It's crucial for everyone to stay informed on local UV levels and adjust sun safety practices accordingly, particularly during the high exposure months.
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 |
| Sainte-Therese | 2 | 4 | 5 | 7 | 9 | 9 | 8 | 8 | 7 | 5 | 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 |