Last updated: June 2, 2025
Understanding the UV Index in Churchill, Canada is crucial for protecting your skin and overall health, especially in this northern climate where the Dfc zone brings unique ultraviolet exposure risks. With UV levels peaking between 12:00 PM and 2:00 PM — reaching as high as 8 on the scale — awareness is key to preventing sunburn and long-term skin damage. Understanding these levels helps residents and visitors alike to enjoy the stunning natural beauty of Churchill responsibly while prioritizing their health under the sun. Stay informed and stay safe!
The UV Index paints a vivid picture of sun intensity throughout the day, starting at a mild 1 at 7:00 AM and gradually escalating to a peak of 8 between noon and 2:00 PM. From 10:00 AM onward, the sun's rays become increasingly fierce, reaching 6 by 11:00 AM, and after hitting that high at noon, the index stabilizes at 8 for three hours straight. As the afternoon wanes, the UV Index begins its descent, dropping to 7 at 3:00 PM, then sliding down to 4 by 5:00 PM, and finally settling at a comfortable 2 by 7:00 PM. This data highlights the need for sun protection during the midday hours, ensuring safety while reveling in the sunshine!
| 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 | 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 | 7 | high | 25 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 |
Throughout the year, UV Index levels exhibit significant seasonal variations, with high-risk months primarily occurring from April to August. During this period, the UV Index reaches its peak, particularly in May and June with values of 8 and 9, indicating very high exposure categories and necessitating a burn time of only 15 minutes. Conversely, the months of January, February, October, November, and December present a low risk of UV exposure, with burn times up to 45 minutes. It is advisable for visitors and residents to take precautions during the high-risk months, such as wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours, particularly when the UV Index is at or above 6. By remaining vigilant and informed, individuals can enjoy their outdoor activities safely year-round.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Churchill | 1 | 2 | 3 | 6 | 8 | 9 | 7 | 6 | 4 | 2 | 1 | 1 |
| 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 |
| 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 |