Hornisgrinde

Mountain Highest peak of Northern Black Forest with moorland plateau

The highest peak of the Northern Black Forest, Hornisgrinde features a raised bog, lookout tower and trails for hiking and cross-country skiing in Baden-Württemberg.

Main image

Hornisgrinde is the highest peak in the Northern Black Forest in Baden-Württemberg, Germany, with an elevation of about 1,164 metres. It is known for a conspicuous summit plateau and a preserved high-moor landscape.

The summit area contains a raised-bog habitat and offers marked trails and panoramic views across the Black Forest and into the Rhine valley on clear days. A small lake, the Mummelsee, lies on the mountain’s eastern slopes and is a well-known local attraction.

The mountain has been used for forestry and tourism for centuries; in the 20th century sections of the summit were used for radar and telecommunications installations but large parts are now conservation areas and hiking terrain. Efforts to protect the raised-bog date from modern conservation movements.

Hornisgrinde sits in the northern section of the Black Forest range in Baden-Württemberg, near towns such as Baiersbronn and Freudenstadt, and is accessible by regional roads and marked hiking trails.

  • Elevation: The mountain's summit reaches 1,164 metres, making it the highest point of the Northern Black Forest.

What to See #

  • Mummelsee: A small highland lake located on the eastern slopes, popular with visitors and often used as a starting point for shorter walks on the mountain.
  • Summit bog: A plateau and raised-bog area at the summit that preserves highland peatland vegetation and is the mountain's characteristic ecological feature.
Hornisgrinde
Hornisgrinde, Black Forest (Baden-Württemberg), Germany
48.6040, 8.2013
Free (outdoor area); nearby visitor facilities may charge

How to Get to Hornisgrinde #

Hornisgrinde is reached by regional roads from Baiersbronn or Seebach. The main visitor car parks are on the northern approach; signed trails and walking paths lead to the summit plateau. Public buses serve nearby towns, from which the ridge is a 30-60 minute hike.

Tips for Visiting Hornisgrinde #

  • Park at the car park on the northern approach near Seebach and follow the signed trails south to the summit plateau.
  • Bring a jacket even in summer - the summit frequently sits in clouds and a cold wind can cut through.
  • Stop at the Merkur Tower area for one of the Black Forest's best sunrise/sunset panoramas when visibility is good.

Best Time to Visit Hornisgrinde #

A high Black Forest summit - accessible year-round but most comfortable in late spring to early autumn.

Summer
Jun-Aug · 10-20°C
Warmest and greenest time; heather blooms on the plateau in late summer.
Autumn
Sep-Oct · 5-15°C
Clear light and fewer visitors; morning fog can create atmospheric scenes.

Weather & Climate near Hornisgrinde #

Climate

Hornisgrinde's climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with cool summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -4°C to 18°C. Heavy rainfall (2022 mm/year), wettest in December, distributed fairly evenly throughout the year.

Temperature & Rainfall
Temperature Range
18°
Warmest Month
-4°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of 1°C and lows of -4°C. Significant rainfall (190 mm) and breezy conditions.

Comfort

-2°
Feels Like Freezing
-2°C
Temperature
-4°

Weather

190 mm
Rainfall
6.0 m/s
Wind
Breezy

February

February is freezing with highs of 1°C and lows of -4°C. Significant rainfall (168 mm).

Comfort

-1°
Feels Like Freezing
-1°C
Temperature
-4°

Weather

168 mm
Rainfall
5.5 m/s
Wind
Light Breeze

March

March is cold with highs of 4°C and lows of -2°C. Significant rainfall (171 mm).

Comfort

Feels Like Cold
C
Temperature
-2°

Weather

171 mm
Rainfall
5.4 m/s
Wind
Light Breeze

April

April is cold with highs of 7°C and lows of 0°C. Significant rainfall (140 mm).

Comfort

Feels Like Cold
C
Temperature

Weather

140 mm
Rainfall
4.7 m/s
Wind
Light Breeze

May

May is cold with highs of 12°C and lows of 5°C. Significant rainfall (160 mm).

Comfort

Feels Like Cold
C
Temperature
12°

Weather

160 mm
Rainfall
4.4 m/s
Wind
Light Breeze

June

June is cool with highs of 15°C and lows of 8°C. Significant rainfall (172 mm).

Comfort

11°
Feels Like Cool
11°C
Temperature
15°

Weather

172 mm
Rainfall
4.2 m/s
Wind
Light Breeze

July

July is cool with highs of 18°C and lows of 10°C. Significant rainfall (168 mm).

Comfort

14°
Feels Like Cool
14°C
Temperature
10° 18°

Weather

168 mm
Rainfall
4.1 m/s
Wind
Light Breeze

August

August is cool with highs of 18°C and lows of 11°C. Significant rainfall (130 mm).

Comfort

14°
Feels Like Cool
14°C
Temperature
11° 18°

Weather

130 mm
Rainfall
3.9 m/s
Wind
Light Breeze

September

September is cool with highs of 14°C and lows of 7°C. Significant rainfall (140 mm).

Comfort

11°
Feels Like Cool
11°C
Temperature
14°

Weather

140 mm
Rainfall
4.4 m/s
Wind
Light Breeze

October

October is cold with highs of 10°C and lows of 4°C. Significant rainfall (175 mm).

Comfort

Feels Like Cold
C
Temperature
10°

Weather

175 mm
Rainfall
4.8 m/s
Wind
Light Breeze

November

November is cold with highs of 4°C and lows of -1°C. Significant rainfall (200 mm).

Comfort

Feels Like Cold
C
Temperature
-1°

Weather

200 mm
Rainfall
5.5 m/s
Wind
Light Breeze

December

December is freezing with highs of 2°C and lows of -3°C. The wettest month with heavy rain (208 mm) and breezy conditions.

Comfort

Feels Like Freezing
C
Temperature
-3°

Weather

208 mm
Rainfall
6.0 m/s
Wind
Breezy

Nearby Attractions to Hornisgrinde