Last updated: August 1, 2025
In Umm Ruwaba, Sudan, being aware of the UV Index is crucial for protecting your skin from harmful sun exposure. The region's BSh climate brings intense sunlight, especially during midday hours, with UV levels peaking at a concerning 13 around noon. Understanding these UV levels is essential for preventing sunburn and maintaining overall skin health. With the risk of UV damage rising significantly between 10 AM and 2 PM, staying informed and taking protective measures can help safeguard you against the long-term effects of sun exposure while enjoying the warm embrace of the sun in this vibrant locale.
The UV Index data reveals a dynamic fluctuation throughout the day, peaking at a maximum of 13 around noon. The morning starts off gently, with readings of only 1 at 07:00 and 3 by 08:00, perfect for early risers. However, as the sun ascends, the intensity rises sharply, hitting a critical 10 by 10:00 and reaching its zenith at 12 by 11:00 and 13 by 12:00. The afternoon sees a gradual decline, with values dropping to 9 at 14:00, and then further sliding to 6 by 15:00. As evening approaches, the UV Index dwindles to 3 by 16:00, and finally tails off to 1 by 17:00, nurturing a calmer end to the day. With clear awareness of these fluctuations, individuals can effectively plan their outdoor activities, ensuring protection during the most intense 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 | 13 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 6 | high | 25 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 |
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 |