Night Light of Biarritz (Nouvelle-Aquitaine) from space (France) Src. Average luminocity for 10x10km area is 49.4048% and for 50x50km: 10.0362%.
Square area 10x10 km:
 11.9%
 13.17%
 4.92%
 4.6%
 4.92%
 6.67%
 5.56%
 4.76%
 13.17%
 16.98%
 13.33%Square area 50x50 km:
 1.32%
 1.5%
 0.79%
 1.04%
 1.55%
 1.71%
 1.34%
 1.26%
 3.2%
 8.42%
 77.87%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
43° 59' 17.4" North, 2° 15' 31.3" West
43° 28' 48.4" North, 1° 33' 20.1" West
42° 58' 4" North, 0° 51' 8.8" West
Some cities around Biarritz sort by population:
• Bayonne
		6.5 km =4 mi, 
77°
• Anglet
		3.4 km =2.1 mi, 
96°
• Saint-Jean-de-Luz
		13.3 km =8.3 mi, 
220°
• Tarnos
		10.1 km =6.3 mi, 
47°
• Boucau
		9 km =5.6 mi, 
53°
• Ciboure
		14.5 km =9 mi, 
221°
• Ustaritz
		12.3 km =7.6 mi, 
139°
• Bidart
		5.5 km =3.4 mi, 
211°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016