Dark-sky places in Portugal
Peneda-Gerês National Park is the only dark-sky place or national park in Portugal in our list: 478 clear, moonless hours of full darkness a year (ERA5, 2006–2025), darker than 53% of Europe’s land (NASA VIIRS 2025).
| Place | Best month | Clear moonless dark hours a year | Darker than… |
|---|---|---|---|
| Peneda-Gerês National Park national park | August | 478 | 53% |
Climate, not a forecast: these are shares of past nights (ERA5 reanalysis, 2006–2025), not a prediction for a particular night. Check a forecast before you go.