Night Light of Olonne-sur-Mer (Pays de la Loire) from space (France) Src. Average luminocity for 10x10km area is 16.9773% and for 50x50km: 2.7664%.
Square area 10x10 km:
 2.7%
 4.4%
 0.85%
 2.27%
 1.7%
 1.28%
 1.7%
 3.27%
 0.99%
 10.23%
 70.6%Square area 50x50 km:
 0.3%
 0.42%
 0.19%
 0.5%
 0.28%
 0.33%
 0.38%
 0.43%
 0.38%
 1.86%
 94.92%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
47° 1' 0.4" North, 2° 28' 33.8" West
46° 32' 6.9" North, 1° 46' 22.5" West
46° 2' 57.8" North, 1° 4' 11.3" West
Some cities around Olonne-sur-Mer sort by population:
• La Roche-sur-Yon
		29.8 km =18.5 mi, 
60°
• Les Sables-d’Olonne
		4.4 km =2.7 mi, 
191°
• Château-d’Olonne
		4.3 km =2.7 mi, 
145°
• Saint-Hilaire-de-Riez
		23 km =14.3 mi, 
329°
• Saint-Gilles-Croix-de-Vie
		22.4 km =13.9 mi, 
323°
• Aizenay
		26 km =16.2 mi, 
28°
• Le Poiré-sur-Vie
		32.9 km =20.4 mi, 
37°
• Saint-Hilaire-de-Talmont
		14.9 km =9.3 mi, 
119°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016