Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Umm Ruwaba, Sudan, where exposure to ultraviolet radiation can significantly impact skin health. With temperatures typically soaring and high UV levels peaking around noon, staying informed about the UV Index helps in preventing sunburn and long-term skin damage. As a part of the hot semi-arid climate (BSh), Umm Ruwaba is prone to intense sunshine, making it essential to comprehend daily UV variations—from a mild 1 in the early morning to a scorching 13 at midday. Protect your skin by being mindful of these UV levels and enjoy the sun safely!
The UV Index throughout the day displays a dramatic rise, peaking at 13 at 12:00 PM. Starting from a modest 1 at 7:00 AM, it climbs steadily, hitting 3 by 8:00 AM and reaching a significant 7 by 9:00 AM. The intensity continues to escalate, peaking at a striking 12 by 11:00 AM, just before it reaches its maximum of 13 at noon. After this high point, the index gradually declines, dropping to 11 at 1:00 PM, and further decreasing to 8 by 2:00 PM. By the afternoon, the UV Index diminishes, ending the day with a low 0 at 7:00 PM, underscoring the importance of sun safety during peak hours.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 10 | very high | 15 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index exhibits significant fluctuations, with the highest risk months occurring from February to September. During this period, the UV Index reaches an extreme level, peaking at 14 in March and August, where a mere 10 minutes of unprotected exposure can result in severe skin burns. Visitors and residents are strongly advised to take precautions by wearing protective clothing, applying a high-SPF sunscreen, and avoiding direct sunlight, particularly between late morning and early afternoon when the index is highest. As we transition into October to December, the UV Index decreases to 10 or lower, signaling a reduction in risk, but caution should still be maintained during November and December, with burn times still at 15 minutes in very high categories. Overall, staying vigilant and proactive about sun safety is crucial year-round but especially during the high-risk months.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Port Sudan UVI | 8 | 10 | 12 | 12 | 13 | 10 | 11 | 10 | 11 | 10 | 8 | 7 |
| Omdurman UVI | 9 | 11 | 13 | 13 | 13 | 10 | 11 | 11 | 11 | 11 | 9 | 8 |
| Khartoum UVI | 9 | 11 | 13 | 13 | 13 | 10 | 11 | 11 | 11 | 11 | 9 | 8 |
| Kassala UVI | 10 | 12 | 14 | 13 | 14 | 11 | 11 | 12 | 11 | 11 | 10 | 9 |
| Umm Ruwaba | 10 | 12 | 14 | 13 | 13 | 11 | 13 | 14 | 12 | 12 | 10 | 9 |
| Nyala UVI | 11 | 12 | 14 | 13 | 12 | 12 | 14 | 14 | 13 | 12 | 10 | 10 |