Last updated: June 2, 2025
Understanding the UV Index in Glencoe, South Africa is vital for protecting your skin and overall health. The UV Index, which measures the intensity of ultraviolet radiation from the sun, plays a crucial role in preventing sunburn and long-term skin damage. With Glencoe's mild climate, UV levels can quickly rise, especially around midday when they peak at 5, indicating a medium to high risk of harm from unprotected sun exposure. Being aware of these levels is essential for enjoying the outdoors safely while effectively safeguarding your skin. Stay informed and take the necessary precautions to ensure your time in the sun is both enjoyable and safe!
The UV Index for the day showcases a clear peak during the midday hours, rising from a low of 1 at 07:00 and 08:00. By 09:00, it reaches 2, but the real intensity hits at 10:00, soaring to 4. The maximum exposure occurs around 11:00 and 12:00, both maintaining a 5 on the scale, urging sun-seekers to take precautions. As the afternoon progresses, the index gently declines to 4 at 13:00, then dips further to 3 by 14:00. By the time the clock strikes 15:00, it drops to 2, and the evening sets in with a comfortable 1 at 16:00. After 17:00, the UV Index drops to 0, signaling a safe end to sun-related activities.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 5 | moderate | 30 min |
| 13:00 | 4 | moderate | 30 min |
| 14:00 | 3 | moderate | 30 min |
| 15:00 | 2 | low | 45 min |
| 16:00 | 1 | low | 45 min |
| 17:00 | 0 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
During the year, the UV Index exhibits significant seasonal variations, with extreme levels present from January to March and at the beginning and end of the year, specifically in October, November, and December. These high-risk months underscore the importance of protective measures, as the burn time is only 10 minutes during this period. In contrast, April marks a transition to very high UV levels, with a slightly longer burn time of 15 minutes, while May to July presents moderate levels, allowing for a burn time of up to 30 minutes. However, August and September return to very high levels with shortened burn times of 15 minutes. To ensure safety, both residents and visitors should take precautions like wearing protective clothing, seeking shade, and applying sunscreen, especially during these high-risk months to mitigate the dangers of prolonged sun exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cape Town UVI | 14 | 13 | 11 | 8 | 5 | 3 | 4 | 6 | 9 | 11 | 12 | 14 |
| Durban UVI | 14 | 13 | 12 | 9 | 6 | 4 | 5 | 7 | 9 | 11 | 13 | 15 |
| Glencoe | 15 | 15 | 12 | 10 | 7 | 5 | 5 | 8 | 10 | 12 | 13 | 15 |
| Johannesburg UVI | 15 | 15 | 13 | 10 | 7 | 6 | 6 | 8 | 11 | 12 | 14 | 16 |
| Pretoria UVI | 16 | 15 | 13 | 10 | 7 | 6 | 6 | 9 | 11 | 13 | 14 | 16 |
| Soweto UVI | 16 | 15 | 13 | 11 | 7 | 6 | 6 | 8 | 11 | 13 | 15 | 16 |