Light pollution in Latvia

5 cities · estimated Bortle class at each city centre

1 of 5 cities read Bortle 8–9 · 3 of 5 cities read Bortle 6–7 · 1 of 5 cities read Bortle 5–6. The darkest city centre on the list is Jūrmala (Bortle 5–6).

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Cities, brightest first

#	City	Bortle (est.)	Brightness	2 classes darker
1	Riga	8–9	255	~25 km NW
2	Jelgava	6–7	255	~25 km NW
3	Liepāja	6–7	253	~25 km W
4	Daugavpils	6–7	255	~25 km SE
5	Jūrmala	5–6	85	~25 km NNW

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.