YozoraAtlasyo·zo·ra (夜空) n. [Jap.] night sky

How dark is the sky in Auckland?

Sky darkness for 3 towns and parks in Auckland, worked out from NASA satellite images of light at night (2025). 1 of them has skies of Bortle 4 or darker, where the Milky Way shows overhead. The darkest is Great Barrier Island (21.86, Bortle 3), the brightest Auckland (18.11, Bortle 8). Milky Way season in Auckland runs February to October: on moonless nights the bright core stands clear of the horizon, climbing to about 83° at its highest.

19 Bortle class, 1 pristine to 9 city center park or dark-sky place city

Numbers like 21.95 or 16.97 are the brightness of the sky overhead on a clear, moonless night, in mag/arcsec². The scale runs backwards: a lower number means a brighter sky, from about 22 for a natural sky to about 17 in a city center.
How the readings are made

NASA satellite night-lights map of Auckland with every place marked

Darkest skies in Auckland

  1. Great Barrier IslandBortle 321.86

Among the places on this site. Plenty of land between them is just as dark, with no town or park to name it by.

Brightest city skies in Auckland

  1. AucklandBortle 818.11
  2. PukekoheBortle 520.24

All 3 places in Auckland

Amber names are parks and certified dark-sky places. The figure is the Bortle class: 1 darkest, 9 city center.
Auckland8Great Barrier Island3Pukekohe5