Milenavaleska · Public domain
The descent
The entrance, at 80 m.
The real relief above Jahnhöhle, measured on the Copernicus model every 30 m, and the cave going down at the same vertical scale.
The depth is the one published by those who explored it; the shape of the galleries is a sketch, not a survey. No depth has been published for this cave yet.
80m
Entrance altitude
from the 30 m relief model
10°C
Inside, all year
the yearly average outside, at the entrance
54m
Rock above
the highest point within 1.5 km
Inside and outside
10 °C inside, all year.
Deep inside, a cave keeps the average temperature of the year outside: about 10 °C here, in January and in August. In July the afternoon reaches 26 °C at the entrance, 16 °C warmer than inside: take a jacket. The wettest months are in July: water rises fast underground, so never go in without a guide after heavy rain.
- 3°-3°Jan
- 5°-3°Feb
- 9°0°Mar
- 15°4°Apr
- 20°9°May
- 24°12°Jun
- 26°15°Jul
- 26°14°Aug
- 21°10°Sep
- 14°5°Oct
- 8°2°Nov
- 4°-1°Dec
Outside: afternoon and night averages for 1991–2020 (NASA POWER) brought to the altitude of the entrance. Inside: the yearly average, which deep parts of a cave keep. Near the entrance it follows the weather a little.
Cave in Germany
Jahnhöhle is a cave in Germany. The entrance is at 80 m. It has an underground river.
Getting there.
- Wild cave: only with caving equipmentNo paths or lights inside. Go only with a caving club or a qualified guide.
- Halle (Saale)nearest town · 3.3 km in a straight line
- Viewpointsnearest viewpoint · 0.1 km from the entrance
- Leipzig/Halle Airport (LEJ)nearest airport with scheduled flights · 21 km in a straight lineCar hire at LEJ airport (Schkeuditz)Discover Cars · sponsored link↗
Plan the visit
Guided tours, a bed nearby, a car.
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
The water
The Mühlgraben, month by month.
The Mühlgraben carries about 101 m³/s on average here.
- 139 m³/sJan
- 97 m³/sFeb
- 201 m³/sMar
- 148 m³/sApr
- 162 m³/sMay
- 46 m³/sJun
- 98 m³/sJul
- 61 m³/sAug
- 88 m³/sSep
- 50 m³/sOct
- 112 m³/sNov
- 87 m³/sDec
From about 46 m³/s in the lowest month to 201 m³/s in the highest. Its basin above this point covers 17,890 km².
Follow the Saale from source to mouth on Riveryas
Estimate: long-term flow from the HydroATLAS model (WaterGAP, 1971–2000) shaped by the monthly rain, snow and temperature of the area (NASA POWER). Dams change it. Not a forecast.
From above.
The ground above the cave, with the relief shaded, the line of the section and what people have mapped around the entrance.
N
1.5 km
Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 6.0 × 6.0 km, north up. The line is the section above. Points © OpenStreetMap contributors.
Around the entrance.
- 1other cave entrances within 3 kmSiebenbrüderhöhle
- 38viewpoints within 3 kmEichendorff-Bank, Aussichtspunkt Heinrich - Heine Felsen, Heinrich-Heine-Felsen (Lehmannsfelsen) and 35 more
- 11marked hiking routes within 3 kmNaturlehrpfad "Seebener Busch", Lutherweg Sachsen-Anhalt, Gose-Wanderweg and 8 more
- 8climbing crags within 3 kmGalgenberg, Riveufer Sektor "Sport frei", Riveufer Sektor "Katastrophe" and 5 more
- 676car parks within 2 km
- 76information boards and visitor centres within 3 km
- 61bus stops within 2 km
- 6campsites within 8 kmPappelgrund, Stellplatz an der Stadtschleuse Halle, Campingplatz am Nordbad and 3 more
- 76hotels and guesthouses within 8 kmHotel Zum kleinen Sandberg, Ankerhof, Pension Gutshaus and 73 more
- 188restaurants and cafés within 3 km
- springs within 2 km
- sinkholes within 3 km
- caving clubs and spots within 15 km
- named waterfalls within 4 km
Counted in OpenStreetMap, the map anyone can edit, around the entrance. A low number may just mean nobody has mapped it yet. © OpenStreetMap contributors (ODbL).
Towns nearby
- Halle (Saale)3.3 km in a straight line
- Sennewitz4.0 km in a straight line
- Halle-Neustadt4.2 km in a straight line
- Gutenberg4.5 km in a straight line
- Teicha5.7 km in a straight line
- Angersdorf6.3 km in a straight line
- Lieskau6.6 km in a straight line
- Peißen7.0 km in a straight line
In our other atlases
What else is around Jahnhöhle.
The river at the entrance, the waterfalls, the lakes, the mountains and volcanoes above, the canyons, beaches and islands nearby — from our other atlases.
Figures from the sister sites' databases (Wikidata, HydroATLAS, GeoNames, NOAA, OpenStreetMap). Links open when each site is online.
Month by month
The weather outside, at the entrance.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon | 3 | 5 | 9 | 15 | 20 | 24 | 26 | 26 | 21 | 14 | 8 | 4 |
| Afternoon | 3 | 5 | 9 | 15 | 20 | 24 | 26 | 26 | 21 | 14 | 8 | 4 |
| Night | -3 | -3 | 0 | 4 | 9 | 12 | 15 | 14 | 10 | 5 | 2 | -1 |
| Rain (mm) | 48 | 33 | 41 | 32 | 59 | 54 | 76 | 60 | 54 | 45 | 50 | 47 |
| Rainy days | 12 | 9 | 11 | 9 | 11 | 12 | 13 | 12 | 9 | 10 | 10 | 12 |
| Sun hours/day | 1.1 | 2.4 | 4.0 | 6.2 | 6.6 | 7.1 | 6.7 | 6.0 | 5.0 | 3.0 | 1.2 | 0.7 |
| Snow on the ground (cm) | 14 | 12 | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 12 |
| Afternoon | Afternoon | Night | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | 3 | 3 | -3 | 48 | 1.1 |
| Feb | 5 | 5 | -3 | 33 | 2.4 |
| Mar | 9 | 9 | 0 | 41 | 4.0 |
| Apr | 15 | 15 | 4 | 32 | 6.2 |
| May | 20 | 20 | 9 | 59 | 6.6 |
| Jun | 24 | 24 | 12 | 54 | 7.1 |
| Jul | 26 | 26 | 15 | 76 | 6.7 |
| Aug | 26 | 26 | 14 | 60 | 6.0 |
| Sep | 21 | 21 | 10 | 54 | 5.0 |
| Oct | 14 | 14 | 5 | 45 | 3.0 |
| Nov | 8 | 8 | 2 | 50 | 1.2 |
| Dec | 4 | 4 | -1 | 47 | 0.7 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the altitude of the entrance (80 m) with the standard lapse rate. Not a forecast.
Recent years
Wet years, dry years.
Rain of each month as a share of the 1991–2020 average. A dry year means a lower river and hotter rock; a wet one, more water in the gorge.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 60% | 228% | 89% | 29% | 86% | 109% | 47% | 124% | 96% | 158% | 20% | 61% |
| 2021 | 128% | 156% | 74% | 118% | 148% | 112% | 144% | 184% | 60% | 60% | 90% | 87% |
| 2022 | 86% | 124% | 24% | 97% | 56% | 79% | 52% | 151% | 123% | 88% | 64% | 115% |
| 2023 | 102% | 116% | 185% | 170% | 32% | 123% | 77% | 186% | 27% | 223% | 154% | 207% |
| 2024 | 99% | 230% | 86% | 113% | 146% | 136% | 96% | 102% | 147% | 103% | 89% | 79% |
| 2025 | 124% | 61% | 62% | 116% | 82% | 79% | 130% | 62% | 122% | 121% | 71% | 45% |
130% or more: wet month 70% or less: dry month
Where these figures come from
| Name, type, published depth and length, visitors | Wikidata (Q1678560) · CC0 |
|---|---|
| The relief above, the entrance altitude, the section and the 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| River flow and basin | HydroATLAS / RiverATLAS v1.0 (Linke et al. 2019) · CC BY 4.0 |
| Climate | NASA POWER, 1991–2020 |
| Entrances, springs, sinkholes, opening hours and what is around | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Rivers, waterfalls, lakes, mountains, canyons, beaches and islands nearby | Coastya, Lakeyas, Peakyas, Cascadyas, Islandyas, Riveryas |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
The family
Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers, canyons, caves, dark skies, viewpoints, birdwatching or forests?
Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.






