Altena Castle Castle

Hilltop medieval castle overlooking the Lenne valley

Perched above Altena, Altena Castle is a medieval hill castle with a museum and walking routes; visitors come for the ramparts, museum displays and valley views over the Lenne.

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Altena Castle at a Glance#

Address: Burg Altena, 58762 Altena, North Rhine-Westphalia, Germany

Website: https://www.burg-altena.de/

Hours: Mar-Oct daily 10am-6pm, Nov-Feb weekends 11am-4pm

Admission: €6-8 (adult seasonal ticket)

About Altena Castle#

Altena Castle (Burg Altena) is a medieval hill castle above the town of Altena in North Rhine-Westphalia, Germany, with origins in the early 12th century. The site is notable both for its medieval structures and for hosting the first organised youth hostel in 1914.

Visitors can walk the castle ramparts, see the restored keep and interpretive exhibitions covering the castle’s medieval history, and use the on-site youth hostel and visitor facilities. The castle sits prominently above the Lenne valley and provides panoramic views of the surrounding Sauerland hills.

The fortress was founded in the early 1100s by the regional noble families who controlled trade and routes through the Lenne valley. Over the medieval and early modern periods the site was rebuilt and adapted; in the 20th century it gained new use as the site of the first youth hostel and as a local museum.

The castle crowns a rocky spur directly above Altena town in the Märkischer Kreis, in the Sauerland region of western Germany, roughly within driving distance of the Ruhr area and about 40 km from the Dortmund metropolitan area.

  • Age and siting: The original castle dates to the early 12th century and sits on a rocky spur above the town of Altena.
  • Youth hostel founding: The youth hostel established at the castle in 1914 by Richard Schirrmann is recognised as the founding site of the international youth hostel movement.

What to See#

  • Castle keep: A preserved medieval tower and curtain-wall remains form the highest point and offer views across the Lenne valley. The tower dates to the original 12th-century castle core.
  • Youth hostel: An on-site youth hostel founded in 1914 established the castle as the location of the world’s first organised youth hostel movement and still offers accommodation and visitor facilities.
  • Castle museum: Exhibition rooms in the castle present medieval history of the site and the surrounding Märkischer Kreis; displays cover the Counts who founded the castle and local regional history.

How to Get to Altena Castle#

Altena is about 35 km southeast of Dortmund. From Altena town center, the castle is a 10-15 minute uphill walk; local buses stop near Burgstraße. By car, follow signage for Burg Altena and park in the designated lot below the hill.

Tips for Visiting Altena Castle#

  • Enter through the old gatehouse (marked Burg) for the best view of the courtyard; ticket office is nearby.
  • Don't skip the youth hostel museum: Burg Altena hosted the first organized youth hostel in 1914 and that small exhibit is oddly moving.
  • Climb the ramparts at sunset - the Lenne valley light is unexpectedly cinematic.

Best Time to Visit Altena Castle#

Late spring through early autumn gives the best access to exhibitions, ramparts, and the historic youth hostel exhibits.

Spring-Early Autumn (Apr-Sep)
Apr-Sep · 8°C to 22°C
Warmer weather opens the courtyards and museums; hiking on the castle hill is pleasant.
Winter (Dec-Feb)
Dec-Feb · −5°C to 5°C
Quieter, atmospheric; castle looks striking with a dusting of snow but some facilities are reduced.

Weather & Climate near Altena Castle#

Climate

Altena Castle's climate is classified as Oceanic - Oceanic climate with mild summers (peaking in July) and cold winters (coldest in January). Temperatures range from -2°C to 22°C. Abundant rainfall (1056 mm/year), wettest in December, distributed fairly evenly throughout the year.

Air Quality: AQI 36 Good
Best Time to Visit
SeptemberJulyAugust
Temperature & Rainfall
Temperature Range
39°
Warmest Month
-18°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -1° - 4° -3° 106 mm overcast 94% 4.2 m/s 0.0 low 8.2h
February Poor -2° - 5° -3° 75 mm overcast 91% 4.0 m/s 0.1 low 9.8h
March Poor 1° - 8° 1° 87 mm overcast 86% 4.1 m/s 0.4 low 11.7h
April Acceptable 3° - 12° 5° 68 mm partly cloudy 80% 3.6 m/s 0.7 moderate 13.7h
May Good 7° - 17° 12° 75 mm overcast 79% 3.3 m/s 1.1 high 15.4h
June Good 10° - 19° 15° 90 mm overcast 76% 3.2 m/s 1.3 high 16.3h
July Good 12° - 22° 17° 98 mm overcast 71% 3.2 m/s 1.3 high 15.9h
August Good 12° - 21° 16° 84 mm overcast 72% 3.0 m/s 1.0 high 14.4h
September Good 9° - 17° 13° 85 mm partly cloudy 76% 3.2 m/s 0.7 moderate 12.5h
October Acceptable 6° - 13° 7° 79 mm overcast 85% 3.6 m/s 0.3 low 10.5h
November Poor 2° - 8° 2° 99 mm overcast 92% 3.8 m/s 0.1 low 8.7h
December Poor 0° - 5° -1° 110 mm overcast 94% 3.9 m/s 0.0 low 7.7h

Nearby Attractions to Altena Castle#