Last updated: July 2, 2025
In Chestermere, Canada, understanding the UV Index is essential for protecting your skin from harmful ultraviolet (UV) radiation. Awareness of UV levels helps residents and visitors alike prevent sunburn and maintain overall skin health, especially during the peak sun hours when the index can reach up to 8. Given Chestermere's Dfb climate, characterized by warm summers and cold winters, the risks of excessive UV exposure can be significant, particularly during midday when UV levels soar. Stay informed and safeguard your skin while enjoying the beautiful outdoors!
The UV Index throughout the day showcases a dynamic pattern in sunlight intensity, starting with a mild 1 at 07:00 and 08:00. As the sun climbs higher in the sky, it reaches a moderate 3 by 09:00. The real surge begins at 10:00 when the index hits 4, peaking at 12:00 and 13:00 with an impressive 8. This peak lasts through 14:00 and 15:00, reminding us to take precautions under the blazing sun. As the day progresses, the intensity gradually decreases, dipping to 6 at 16:00, and then fading further to 4, 3, and finally 2 by 19:00. It's a clear reminder of the sun's power and the importance of sun protection during peak hours!
| 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 | 8 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
As the seasons shift, the UV Index reflects notable changes in sun exposure risk, peaking during the summer months. From April to August, the UV Index rises significantly, reaching levels of 7 to 8, categorizing these months as high to very high risk for sunburn, with the minimum burn time dropping to just 15 minutes in June, July, and August. January and February begin with low to moderate exposure, easing gradually until the spring months. October marks a decrease to moderate levels again, while November and December return to low UV exposure, allowing for greater safety. Residents and visitors should take precautions during the high-risk months of April through August, such as wearing protective clothing, applying sunscreen frequently, and seeking shade during peak hours.
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 |
| Chestermere | 2 | 3 | 4 | 7 | 7 | 8 | 8 | 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 |