Last updated: June 2, 2025
Understanding the UV Index in Krugersdorp, South Africa, is crucial for ensuring your skin's health and preventing sunburn. With the area's Cwb climate, residents and visitors alike should be aware of the varying UV levels throughout the day, especially during peak hours when the index can reach as high as 6 around noon. Monitoring these levels helps you take proactive measures to protect yourself from the sun's harmful rays, allowing you to enjoy outdoor activities while minimizing skin damage and reducing the risk of long-term health effects. Stay informed and stay safe under the South African sun!
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 experiences significant seasonal fluctuations, with extreme levels dominating the first half of the year. Notably, January to April show consistent UV Index readings of 16 to 13, indicating high risk for sunburn and necessitating cautious exposure management, with a brief burn time of just 10 minutes. The summer months of May to July witness a slight decrease, with UV levels dropping to a high category, allowing for a safer burn time of 25 minutes. However, August spikes again to 9, categorizing it as very high with a burn time of only 15 minutes. As the year transitions into September to November, UV levels again surge into the extreme category, reinforcing the need for vigilance as burn times revert to 10 minutes. Residents and visitors are advised to take necessary precautions, especially during high-risk months (January to April and September to November) by applying sunscreen, wearing protective clothing, and limiting sun exposure to minimize the risk of skin damage.
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 |
| 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 |
| Krugersdorp | 16 | 16 | 13 | 11 | 7 | 6 | 6 | 9 | 11 | 13 | 14 | 16 |