Austria Cave
Koppenbrühlerhöhle
9 °C inside, all year.
Herzi Pinki · CC BY-SA 3.0
The descent
The entrance, at 687 m.
The real relief above Koppenbrühlerhöhle, 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.
687m
Entrance altitude
published (Wikidata)
9°C
Inside, all year
the yearly average outside, at the entrance
1,142m
Rock above
the highest point within 1.5 km
Inside and outside
9 °C inside, all year.
Deep inside, a cave keeps the average temperature of the year outside: about 9 °C here, in January and in August. In July the afternoon reaches 24 °C at the entrance, 15 °C warmer than inside: take a jacket. The wettest months are from June to August: water rises fast underground, so never go in without a guide after heavy rain.
- 2°-5°Jan
- 3°-4°Feb
- 8°-1°Mar
- 14°3°Apr
- 18°8°May
- 22°12°Jun
- 24°14°Jul
- 23°13°Aug
- 18°9°Sep
- 14°5°Oct
- 8°1°Nov
- 4°-3°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 Upper Austria
Koppenbrühlerhöhle is a cave in Austria. The entrance is at 687 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.
- Bad Ausseenearest town · 6.4 km in a straight line
- Viewpointsnearest viewpoint · 1.3 km from the entrance
- Salzburg Airport (SZG)nearest airport with scheduled flights · 59 km in a straight lineCar hire at SZG airport (Salzburg)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 Koppentraun runs highest from May to September.
The Koppentraun carries about 10 m³/s on average here. It runs highest from May to September.
- 5.4 m³/sJan
- 6.8 m³/sFeb
- 10 m³/sMar
- 11 m³/sApr
- 15 m³/sMay
- 18 m³/sJun
- 19 m³/sJul
- 19 m³/sAug
- 15 m³/sSep
- 10 m³/sOct
- 6.1 m³/sNov
- 5.0 m³/sDec
From about 5.0 m³/s in the lowest month to 19 m³/s in the highest. Its basin above this point covers 320 km².
Follow the Traun 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.
- 4other cave entrances within 3 kmKoppenbrüllerhöhle and 3 more
- 5springs within 2 kmBühlerbachursprung and 4 more
- 6viewpoints within 3 kmWasserfallwand, Schergenkogel, Goiserer Aussicht and 3 more
- 18marked hiking routes within 3 kmWanderweg 662, Ostuferwanderweg, Wanderweg 692 and 15 more
- 1climbing crags within 3 km
- 4car parks within 2 km
- 24information boards and visitor centres within 3 km
- 4bus stops within 2 km
- 8campsites within 8 kmCamping am See, Wohnmobilstellplätze Freibad Winkl/Obertraun, Wohnmobilstellplatz Obertraun and 5 more
- 92hotels and guesthouses within 8 kmHotel Seevilla Altaussee, Olympiahütte, Hotel am See and 89 more
- 3restaurants and cafés within 3 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
- Bad Aussee6.4 km in a straight line
- Altaussee8.2 km in a straight line
- Bad Goisern11 km in a straight line
- Gosau14 km in a straight line
- Mitterndorf im Steirischen Salzkammergut16 km in a straight line
- Reiterndorf16 km in a straight line
- Ramsau am Dachstein17 km in a straight line
- Kaltenbach17 km in a straight line
In our other atlases
What else is around Koppenbrühlerhöhle.
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 | 2 | 3 | 8 | 14 | 18 | 22 | 24 | 23 | 18 | 14 | 8 | 4 |
| Afternoon | 2 | 3 | 8 | 14 | 18 | 22 | 24 | 23 | 18 | 14 | 8 | 4 |
| Night | -5 | -4 | -1 | 3 | 8 | 12 | 14 | 13 | 9 | 5 | 1 | -3 |
| Rain (mm) | 82 | 67 | 81 | 75 | 140 | 166 | 177 | 175 | 132 | 96 | 73 | 76 |
| Rainy days | 14 | 13 | 16 | 15 | 20 | 21 | 22 | 19 | 15 | 14 | 14 | 15 |
| Sun hours/day | 3.0 | 4.5 | 5.2 | 5.7 | 5.5 | 6.4 | 7.0 | 6.5 | 5.1 | 4.5 | 2.8 | 2.4 |
| Snow on the ground (cm) | 27 | 25 | 18 | 8 | 4 | 1 | 0 | 0 | 3 | 6 | 12 | 19 |
| Afternoon | Afternoon | Night | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | 2 | 2 | -5 | 82 | 3.0 |
| Feb | 3 | 3 | -4 | 67 | 4.5 |
| Mar | 8 | 8 | -1 | 81 | 5.2 |
| Apr | 14 | 14 | 3 | 75 | 5.7 |
| May | 18 | 18 | 8 | 140 | 5.5 |
| Jun | 22 | 22 | 12 | 166 | 6.4 |
| Jul | 24 | 24 | 14 | 177 | 7.0 |
| Aug | 23 | 23 | 13 | 175 | 6.5 |
| Sep | 18 | 18 | 9 | 132 | 5.1 |
| Oct | 14 | 14 | 5 | 96 | 4.5 |
| Nov | 8 | 8 | 1 | 73 | 2.8 |
| Dec | 4 | 4 | -3 | 76 | 2.4 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the altitude of the entrance (687 m) with the standard lapse rate. Not a forecast.
Photographs
Inside and around.
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 | 50% | 192% | 83% | 63% | 99% | 124% | 131% | 145% | 140% | 154% | 34% | 103% |
| 2021 | 110% | 55% | 86% | 84% | 120% | 59% | 118% | 122% | 56% | 49% | 129% | 135% |
| 2022 | 84% | 135% | 24% | 125% | 100% | 113% | 88% | 88% | 130% | 138% | 120% | 80% |
| 2023 | 90% | 125% | 134% | 182% | 96% | 64% | 121% | 144% | 35% | 94% | 269% | 216% |
| 2024 | 91% | 106% | 92% | 124% | 107% | 137% | 95% | 73% | 211% | 104% | 36% | 87% |
| 2025 | 51% | 40% | 147% | 112% | 134% | 76% | 152% | 68% | 94% | 94% | 107% | 29% |
130% or more: wet month 70% or less: dry month
Where these figures come from
| Name, type, published depth and length, visitors | Wikidata (Q1699275) · 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.






