| # | City | Bortle (est.) | Brightness | 2 classes darker |
|---|---|---|---|---|
| 1 | Riyadh | 8–9 | 255 | ~50 km E |
| 2 | Makkah | 8–9 | 255 | ~25 km SSW |
| 3 | Buraydah | 8–9 | 255 | ~25 km NE |
| 4 | Khamis Mushait | 8–9 | 255 | ~25 km E |
| 5 | Dammam | 8–9 | 255 | ~25 km ENE |
| 6 | Jeddah | 8–9 | 255 | ~25 km WSW |
| 7 | Madinah | 8–9 | 255 | ~25 km SE |
| 8 | Al Hufūf | 8–9 | 255 | ~25 km S |
| 9 | Ha'il | 8–9 | 255 | ~25 km WNW |
| 10 | Abha | 8–9 | 255 | ~25 km S |
| 11 | Al Kharj | 8–9 | 255 | ~25 km NNE |
| 12 | Ta’if | 8–9 | 255 | ~25 km WSW |
| 13 | Thuqbah | 8–9 | 255 | ~25 km SSE |
| 14 | Şabyā | 8–9 | 255 | ~25 km WSW |
| 15 | Al Jubayl | 8–9 | 255 | ~25 km ENE |
| 16 | Tabuk | 8–9 | 255 | ~25 km SSW |
| 17 | Hafar Al-Batin | 8–9 | 255 | ~25 km NNW |
| 18 | Najrān | 8–9 | 255 | ~25 km SW |
| 19 | Yanbu | 8–9 | 255 | ~25 km WSW |
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.