Stargazing in Portugal

Stargazing in Algarve: 4 dark-sky spots, rated by data

We measured the night sky over every one of these spots: satellite radiance, skyglow from surrounding cities, and ten years of cloud climatology (how the Sky Score works). The darkest sky in Algarve scores 48/100. Each spot guide also lists places to stay nearby, every one rated for the darkness measured at the hotel itself, so you can sleep under the sky you came for.

All Algarve spots, darkest first