Last updated: July 2, 2025
In the picturesque expanse of Hudson Bay, Canada, staying aware of the UV Index is crucial for safeguarding your skin and overall health. With UV levels peaking at 8 during midday hours, understanding these fluctuations can help you prevent sunburn and long-term skin damage. Given Hudson Bay’s distinct Dfc climate, which features cold summers and can bring unexpected sunny days, awareness of UV exposure risks is essential for both residents and visitors. By monitoring the UV Index, you can enjoy the beauty of this stunning region while protecting your skin from harmful radiation.
The UV Index throughout the day presents a fascinating ebb and flow, starting at a mild 1 at 7:00 AM and gradually climbing to its peak of 8 by 1:00 PM. As the sun ascends in the sky, the intensity of ultraviolet rays increases sharply, reaching 6 at 11:00 AM and hitting 7 just before noon. The afternoon sees a gentle decline, with values dropping to 6 by 3:00 PM and further down to 2 by 6:00 PM, before tapering off to 1 again by 7:00 PM. This data underscores the importance of sun protection during the midday hours when UV exposure is at its highest. Remember to stay safe under the sun! 🌞
| 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 | 7 | high | 25 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 7 | high | 25 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 |
The UV Index varies significantly throughout the year, indicating seasonal changes in UV exposure. January and December see low UV levels (Index 1), providing a safer environment for outdoor activities, with burn times of 45 minutes. As the year progresses, UV levels begin to rise, with February and March categorizing as moderate (Index 3 and 4), where burn times reduce to 30 minutes. The risk escalates in late spring and summer, peaking in June and July with a very high UV Index (8) and a significantly shorter burn time of just 15 minutes. The months of April and May also fall under the high category (Index 6 and 7), with burn times of 25 minutes. August and September see a slight decrease but remain high, before dropping back to moderate levels in October. To safeguard against UV exposure, it is crucial for visitors and residents to take precautions, especially during high-risk months from April to August, ensuring regular application of sunscreen, wearing protective clothing, and seeking shade during peak sun 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 |
| Hudson Bay | 1 | 3 | 4 | 6 | 7 | 8 | 8 | 7 | 6 | 3 | 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 |