Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Marble Hall, South Africa, where the BSh climate brings a unique blend of warmth and sunshine. Awareness of UV levels not only aids in preventing sunburn but also plays a vital role in maintaining long-term skin health. With UV exposure peaking at 12:00 PM with a level of 6, it’s essential to take precautions during the hotter hours to safeguard against harmful effects. Being informed can help you enjoy the beautiful South African sun while keeping your skin safe and healthy.
The UV Index today showcased a notable increase from the early morning hours, starting at a gentle 1 at 07:00 and 08:00. As the sun rose higher in the sky, the index climbed steadily, reaching a significant 6 by 12:00, indicating a peak in UV radiation and the need for sun protection. The afternoon saw a slight decline, with values dropping to 4 at 14:00 and falling further to 2 by 15:00. As the day wound down, the UV index returned to a safer range, ending the day at 0 by 19:00. It’s crucial to stay informed and safeguard your skin during those high UV hours!
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 | 6 | high | 25 min |
13:00 | 5 | moderate | 30 min |
14:00 | 4 | moderate | 30 min |
15:00 | 2 | low | 45 min |
16:00 | 1 | low | 45 min |
17:00 | 1 | low | 45 min |
18:00 | 0 | low | 45 min |
19:00 | 0 | low | 45 min |
The UV Index varies significantly throughout the year, with extreme levels recorded from January to March, prompting a cautionary approach for outdoor activities during these months where burn time is as short as 10 minutes. April and May still present very high UV levels, with a burn time of 15 minutes, making them high-risk months as well. From June to July, the UV Index reduces to high, enabling 25 minutes of exposure without burns, but caution is still advisable. After a brief reprieve, August, September, and October see a return to very high and extreme categories, with burn times ranging from 10 to 15 minutes in October, emphasizing the need for protective measures. As November and December roll in, UV levels spike back to extreme, reiterating that residents and visitors should remain vigilant and adopt sun safety practices year-round, especially during the peak months of January through March and again in October and November.
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 |
Johannesburg UVI | 15 | 15 | 13 | 10 | 7 | 6 | 6 | 8 | 11 | 12 | 14 | 16 |
Marble Hall | 16 | 15 | 13 | 10 | 8 | 6 | 6 | 8 | 10 | 13 | 14 | 15 |
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 |