Parque Natural da Serra de São Mamede

Sky Score 44/100≈ Bortle 4

8 places to stay nearby, rated for darkness ↓

Parque Natural da Serra de São Mamede is a protected area in Alentejo with a measured darkness of 68/100 (≈ Bortle 4), a good rural sky: the Milky Way is clearly visible, with some glow on the horizon toward nearby towns. The best month to come is typically July, when about 85% of the night sky is clear.

Tonight's outlook: 20/100. The moon is 99% lit and above the horizon 100% of the night; typical September clear-sky odds here are 66%. Updated daily.

Best time to stargaze at Parque Natural da Serra de São Mamede

MonthClear night skiesSky Score (new moon)
January49%40/100
February49%40/100
March46%39/100
April44%38/100
May55%43/100
June66%50/100
July ★85%60/100
August85%60/100
September66%50/100
October48%40/100
November45%38/100
December40%35/100

Scores assume a moonless night, check the moon before you drive (methodology).

Where to stay near Parque Natural da Serra de São Mamede: sleep under a dark sky

We measured the night sky over each stay below, not just over the spot: the darkness score is computed at the hotel's own location, so you know what you'll see from the door. Sorted darkest sky first, with the distance to Parque Natural da Serra de São Mamede for each.

64/100sky darkness at this stay

#1Darkest sky of these stays

Hotel Sever

Sky darkness
64/100
To the spot
4.5 km
Location
Portagem

61/100sky darkness at this stay

#2

Pousada de Santa Maria de Marvão

Sky darkness
61/100
To the spot
5.2 km
Location
Marvao

61/100sky darkness at this stay

#3

Estalagem de Marvão - Casa de Campo

Sky darkness
61/100
To the spot
5.3 km

More stays nearby

  • Pousada de Santa Maria de Marvão

    Darkness: 61/100 · 5.3 km from Parque Natural da Serra de São Mamede · Marvao

    Check availability →
  • Hotel El-Rei Dom Manuel

    Darkness: 61/100 · 5.3 km from Parque Natural da Serra de São Mamede · Marvão

    Check availability →
  • Varanda do Alentejo

    Darkness: 61/100 · 5.3 km from Parque Natural da Serra de São Mamede · Marvão

    Check availability →
  • Marvão Hotel e Museu.

    Darkness: 61/100 · 5.4 km from Parque Natural da Serra de São Mamede · Marvão

    Check availability →
  • Dom Dinis Marvão

    Darkness: 61/100 · 5.4 km from Parque Natural da Serra de São Mamede · Marvão

    Check availability →

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Live prices around Portagem

Portagem is the closest base to Parque Natural da Serra de São Mamede with rooms to book. The map shows everything available there right now, including the hotels, apartments and cabins we do not rate. Use the stays above when darkness decides, use the map when price or availability does.

Prices and availability come from the booking partners shown on the map, and we earn a commission on bookings made through it. Sky darkness is measured only for the stays listed above.

Nearby spots in Alentejo

Sky data: NASA Black Marble VJ146A4 2025 annual composite · clear-sky climatology ERA5 2015–2024 (methodology).