Last updated: August 1, 2025
Understanding the UV Index is crucial for the residents of Nasir Extension, Sudan, where the BWh climate results in plenty of sunshine and elevated UV exposure. Being aware of UV levels not only helps in preventing sunburn but also plays a significant role in maintaining long-term skin health by reducing the risk of skin-related issues. With peak UV levels reaching a striking 11 around midday, it’s essential for the community to stay informed and take necessary precautions against harmful UV rays, ensuring a safer and healthier outdoor experience amidst the beautiful Sudanese sun.
The UV Index on this particular day featured a notable rise as the morning progressed, starting at a gentle 1 at 7:00 AM, perfect for enjoying the outdoors without much concern. By 8:00 AM, it climbed to a 3, indicating a moderate level of exposure. The peak UV Index arrived between 11:00 AM and 12:00 PM, reaching a striking 11, a level that demanded protective measures to avoid harm from the sun's rays. After this peak, the index gradually declined, falling to 10 by 1:00 PM, then retreating further to 7 by 2:00 PM, before tapering off to 5 at 3:00 PM. As the sun began to set, the intensity waned dramatically, dropping back to a 1 by 5:00 PM and eventually hitting 0 after 7:00 PM. Overall, this day showcased the typical sun cycle, emphasizing the importance of sun safety during midday hours.
| 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 | 11 | extreme | 10 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 7 | high | 25 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 |
The UV Index demonstrates significant seasonal fluctuations, with the highest risk months occurring between February and October, where the index remains at 11 or higher, categorized as extreme. Specifically, the months of March, April, May, July, August, September, and October present a UV Index of 11 or 13, necessitating minimal exposure times of just 10 minutes. In contrast, January, June, November, and December experience lower levels, classified as very high with longer burn times of 15 minutes. Visitors and residents are strongly advised to take precautionary measures during peak UV periods: seek shade, wear protective clothing, and apply sunscreen with a high SPF, especially during the midday hours when UV exposure is at its peak.
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 |
| Nasir Extension | 9 | 11 | 13 | 13 | 13 | 10 | 11 | 11 | 11 | 11 | 9 | 8 |
| 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 |
| Nyala UVI | 11 | 12 | 14 | 13 | 12 | 12 | 14 | 14 | 13 | 12 | 10 | 10 |