Nassau Castle Castle

Medieval hilltop castle overlooking the town of Nassau

Above the town of Nassau, Nassau Castle offers medieval ruins and views over the Lahn River; visitors come for history and short hikes.

Main image

Nassau Castle at a Glance#

Address: Burg Nassau, 56377 Nassau, Rhineland-Palatinate, Germany

Admission: Free to view; some guided entry to certain areas may charge fees

About Nassau Castle#

Nassau Castle is a hilltop medieval castle ruin above the town of Nassau on the Lahn River in Rhineland-Palatinate, Germany and is the ancestral seat associated with the House of Nassau.

Visitors encounter ruined defensive works including the keep, inner bailey and sections of curtain wall, with walking paths that provide views over the town and the Lahn valley. The ruin is a compact site that is accessed from the historic town below.

The castle was founded in the medieval period, with the site associated with the counts of Nassau from the 12th century onward; it served as a regional stronghold and the origin point for the noble House of Nassau. Over many centuries it fell into disuse and was partially destroyed in later conflicts, leaving the present ruin.

The ruin sits on a prominent hill directly above the town of Nassau on the Lahn, within the Westerwald/Lahn region of Rhineland-Palatinate.

  • Viewpoint: Perched on a hillside above the town of Nassau, the site offers clear views down the Lahn valley and across the historic town beneath the ruin.

What to See#

  • Keep and inner bailey: The ruined bergfried and inner bailey are the central surviving structures, visible above the modern town and offering the clearest remains of the medieval fortress.
  • Curtain walls and viewpoints: Outer curtain walls and terraces descend the hill toward the town, creating accessible paths and viewpoints over the Lahn valley below.

How to Get to Nassau Castle#

Nassau Castle sits above the town of Nassau (Lahn), Rhineland-Palatinate. From Limburg an der Lahn or Koblenz, regional trains and buses serve Nassau; the castle is a short walk up from the town center. Driving routes follow local roads into Nassau with parking in town and a path up to the hill.

Tips for Visiting Nassau Castle#

  • Climb partway up the castle hill for the best views over the Lahn River valley and the town of Nassau.
  • Visit the small local museum in town to understand the House of Nassau's medieval origins.
  • Wear sturdy shoes - the access paths around the ruins are uneven and can be steep in sections.

Best Time to Visit Nassau Castle#

Late spring and early autumn offer the most comfortable conditions for exploring the castle ruins and surrounding trails.

Late spring
May-June · 10-22°C
Pleasant walking weather and green valley views.
Autumn
September-October · 8-18°C
Crisp air and softer light; fewer tourists.

Weather & Climate near Nassau Castle#

Climate

Nassau Castle's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in July) and cold winters (coldest in January). Temperatures range from -1°C to 24°C. Moderate rainfall (746 mm/year), distributed fairly evenly throughout the year.

Air Quality: AQI 35 Good
Best Time to Visit
AugustJulySeptember
Temperature & Rainfall
Temperature Range
39°
Warmest Month
-19°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -1° - 4° -2° 57 mm overcast 94% 3.0 m/s 0.1 low 8.4h
February Poor -1° - 5° -1° 49 mm overcast 91% 2.8 m/s 0.2 low 9.9h
March Acceptable 2° - 10° 3° 59 mm overcast 86% 3.1 m/s 0.4 low 11.7h
April Acceptable 4° - 14° 7° 54 mm partly cloudy 79% 2.9 m/s 0.8 moderate 13.6h
May Good 8° - 19° 14° 65 mm overcast 78% 2.6 m/s 1.1 high 15.3h
June Good 11° - 22° 17° 74 mm overcast 74% 2.6 m/s 1.4 high 16.2h
July Very Good 13° - 24° 18° 79 mm overcast 68% 2.5 m/s 1.3 high 15.7h
August Very Good 12° - 24° 18° 56 mm overcast 69% 2.3 m/s 1.1 high 14.3h
September Good 9° - 19° 14° 61 mm partly cloudy 74% 2.4 m/s 0.7 moderate 12.5h
October Acceptable 6° - 13° 8° 62 mm overcast 86% 2.5 m/s 0.3 low 10.6h
November Poor 2° - 8° 3° 63 mm overcast 93% 2.7 m/s 0.1 low 8.8h
December Poor 0° - 5° 0° 67 mm overcast 95% 2.9 m/s 0.0 low 7.9h

Nearby Attractions to Nassau Castle#