| # | City | Bortle (est.) | Brightness | 2 classes darker |
|---|---|---|---|---|
| 1 | Khartoum | 8–9 | 255 | ~25 km WSW |
| 2 | Port Sudan | 7–8 | 255 | ~25 km ENE |
| 3 | Wad Medani | 7–8 | 238 | ~25 km S |
| 4 | El Obeid | 7–8 | 253 | ~25 km SSW |
| 5 | El Fasher | 7–8 | 248 | ~25 km SSE |
| 6 | Kassala | 7–8 | 250 | ~25 km SSE |
| 7 | Nyala | 7–8 | 227 | ~25 km SSW |
| 8 | Kosti | 7–8 | 223 | ~25 km SE |
| 9 | Al Qadarif | 6–7 | 226 | ~25 km ESE |
| 10 | Singa | 6–7 | 195 | ~25 km SE |
| 11 | El Daein | 6–7 | 136 | ~90 km SSE |
Brightness is the NASA VIIRS Black Marble 2016 value at the city centre on a 0–255 scale; 255 is saturated. Cities are ordered by estimated sky brightness, which also counts the light within 30 km.