Last updated: June 2, 2025
In Rumbek, South Sudan, awareness of the UV Index is essential for protecting your skin and overall health from the sun's harmful rays. Understanding UV levels can significantly aid in preventing sunburn and reducing the risk of long-term skin damage, allowing residents and visitors to enjoy the vibrant outdoors safely. With a tropical savanna climate characterized by intense sunlight, Rumbek experiences high UV exposure, particularly during peak hours, where values can soar to 12 around noon. Staying informed about the UV Index not only promotes better skin health but also enhances your outdoor experience in this beautiful region.
At 07:00, the UV Index starts with a mild rating of 1, making it safe for morning activities. However, as the sun rises, it quickly gains intensity, peaking at a striking 12 by 12:00—the highest point of the day. The sun’s rays are strongest between 10:00 and 13:00, with a critical UV level of 11 at 11:00. As the afternoon progresses, the index begins to wane, dropping to 8 by 14:00, and further declining to 5 by 15:00. By 17:00, the UV Index decreases to a safer 1, paving the way for evening activities under less harsh sunlight. As night falls, the UV activity fades to 0 at 19:00, offering a gentle reminder of the sun's powerful presence during the day.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index data reveals extreme levels of ultraviolet radiation from January through June, with readings consistently at 12 to 14, resulting in a rapid burn time of just 10 minutes for unprotected skin. August sees a peak UV Index of 14, making it one of the highest-risk months for sun exposure, closely followed by April and February, both at 13. As summer transitions into fall, risks remain considerable; September also registers at 13. It's advisable for both visitors and residents to be vigilant during these months by seeking shade, wearing protective clothing, and applying broad-spectrum sunscreen with a high SPF. November and December present a slight reduction in risk, with a UV Index of 10 categorized as very high, thus requiring continued sun protection for extended outdoor activities.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Malakal UVI | 11 | 12 | 13 | 14 | 13 | 12 | 13 | 14 | 13 | 12 | 10 | 10 |
| Winejok UVI | 11 | 12 | 13 | 14 | 13 | 12 | 13 | 14 | 13 | 12 | 10 | 10 |
| Rumbek | 12 | 13 | 13 | 14 | 13 | 12 | 12 | 14 | 13 | 12 | 10 | 10 |
| Wau UVI | 11 | 13 | 13 | 14 | 14 | 12 | 13 | 14 | 14 | 12 | 10 | 10 |
| Juba UVI | 12 | 14 | 15 | 15 | 14 | 12 | 11 | 13 | 13 | 12 | 11 | 10 |
| Yei UVI | 13 | 14 | 15 | 15 | 14 | 13 | 12 | 13 | 13 | 12 | 12 | 11 |