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Jakubovo jezero (Moravsky kras)

Czechia Czechia Cave

Moravian Karst

8 °C inside, all year.

See the descentHow to visit

Lukáš Malý · Public domain

The descent

The entrance, at 485 m.

The real relief above Moravian Karst, measured on the Copernicus model every 30 m, and the cave going down at the same vertical scale.

depth not publishedEntrance534 m1.0 kmvertical × 10.1depth not publishedEntrance534 m1.0 kmvertical × 21.9

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.

485m

Entrance altitude

from the 30 m relief model

8°C

Inside, all year

the yearly average outside, at the entrance

39m

Rock above

the highest point within 1.5 km

Inside and outside

8 °C inside, all year.

Deep inside, a cave keeps the average temperature of the year outside: about 8 °C here, in January and in August. In July the afternoon reaches 25 °C at the entrance, 17 °C warmer than inside: take a jacket.

outside, at the entrance (485 m)inside
  1. -1°-7°Jan
  2. 1°-6°Feb
  3. 6°-3°Mar
  4. 13°2°Apr
  5. 18°7°May
  6. 22°12°Jun
  7. 25°14°Jul
  8. 25°13°Aug
  9. 19°8°Sep
  10. 12°3°Oct
  11. 6°0°Nov
  12. 0°-5°Dec
Inside: 8 °C all yearFrost outside: Dec–MarWettest: May–Aug

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.

Karst landscape and protected landscape area in Czech Republic

Moravian Karst is a cave in Czechia. The entrance is at 485 m.

Read more on Wikipedia

Getting there.

  • Wild cave: only with caving equipmentNo paths or lights inside. Go only with a caving club or a qualified guide.
  • Březinanearest town · 1.2 km in a straight line
  • Viewpointsnearest viewpoint · 1.9 km from the entrance
  • Brno-Tuřany Airport (BRQ)nearest airport with scheduled flights · 14 km in a straight lineCar hire at BRQ airport (Brno)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.

From above.

The ground above the cave, with the relief shaded, the line of the section and what people have mapped around the entrance.

The ground above Moravian Karst (Sentinel-2) 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.

  • 34other cave entrances within 3 kmDrátenická jeskyně - vedlejší vchod, krasový závrt, Ve Skalce and 31 more
  • 1springs within 2 km
  • 3sinkholes within 3 kmČertova díra
  • 9viewpoints within 3 kmvelke skalky and 8 more
  • 25marked hiking routes within 3 km[M] Brno-Medlánky (MHD) - Pod Ronovem, [M] Vinohrádky - Luleč, [Č] Cesta S. K. Neumana and 22 more
  • 10car parks within 2 km
  • 79information boards and visitor centres within 3 km
  • 22bus stops within 2 km
  • 4campsites within 8 kmT.O Virginia, Kemp Křtiny, Tyršova Osada and 1 more
  • 32hotels and guesthouses within 8 kmPanská lícha, Terasa, Školící centrum Bukovina and 29 more
  • 11restaurants and cafés within 3 km
  • caving clubs and spots within 15 km
  • climbing crags within 3 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

  • Březina1.2 km in a straight line
  • Kanice2.1 km in a straight line
  • Ochoz u Brna2.6 km in a straight line
  • Babice nad Svitavou2.8 km in a straight line
  • Bílovice nad Svitavou5.6 km in a straight line
  • Mokrá-Horákov5.9 km in a straight line
  • Adamov6.5 km in a straight line
  • Jedovnice7.6 km in a straight line

In our other atlases

What else is around Moravian Karst.

The river at the entrance, the waterfalls, the lakes, the mountains and volcanoes above, the canyons, beaches and islands nearby — from our other atlases.

Peakyas35 mountains within 10 km
Stádla · 2.4 kmKalečník · 3.8 kmProklest574 m · 4.5 kmŠumbera430 m · 6.6 kmHády425 m · 7.6 kmKostelíček Líšeň346 m · 7.9 kmMalena · 8.5 kmOstrá horka404 m · 8.8 km

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.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon-1161318222525191260
Afternoon-1161318222525191260
Night-7-6-327121413830-5
Rain (mm)423641397678807364494342
Rainy days108109141314121091011
Sun hours/day1.32.84.46.46.87.27.37.05.23.21.20.9
Snow on the ground (cm)1817102000001717
AfternoonAfternoonNightRain (mm)Sun hours/day
Jan-1-1-7421.3
Feb11-6362.8
Mar66-3414.4
Apr13132396.4
May18187766.8
Jun222212787.2
Jul252514807.3
Aug252513737.0
Sep19198645.2
Oct12123493.2
Nov660431.2
Dec00-5420.9

Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the altitude of the entrance (485 m) with the standard lapse rate. Not a forecast.

Photographs

Inside and around.

Drobná jeskyně v blízkosti Císařské jeskyně, Ostrov u Macochy, okres Blansko (02)
Jiří Komárek · CC BY-SA 4.0
Drobná jeskyně v blízkosti Císařské jeskyně, Ostrov u Macochy, okres Blansko
Jiří Komárek · CC BY-SA 4.0
Jeskyne Nad Svycarnou
Lukáš Malý · Public domain

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.

JanFebMarAprMayJunJulAugSepOctNovDec
202054%163%76%24%120%223%94%146%160%253%68%125%
2021112%126%67%115%128%76%91%184%40%38%123%88%
202266%74%52%104%91%104%100%137%133%39%51%140%
2023113%66%69%187%78%61%67%202%33%99%181%168%
2024137%151%105%128%125%146%72%54%311%78%63%66%
202576%29%96%96%69%88%148%51%173%83%149%54%

130% or more: wet month 70% or less: dry month

Caves nearby.

Moravian Karst

Czechia

  • —Depth
  • —Galleries
  • 485 mEntrance altitude
  • 8 °CInside, all year

Macocha Gorge

Czechia · 11 km

  • —Depth
  • —Galleries
  • 514 mEntrance altitude
  • 8 °CInside, all year

See the guide

Býčí skála Cave

Czechia · 4 km

  • —Depth
  • —Galleries
  • 352 mEntrance altitude
  • 8 °CInside, all year

See the guide

Punkva Caves

Czechia · 10 km

  • —Depth
  • —Galleries
  • 444 mEntrance altitude
  • 8 °CInside, all year

See the guide

Where these figures come from

Name, type, published depth and length, visitorsWikidata (Q1957269) · CC0
The relief above, the entrance altitude, the section and the 3D modelCopernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA
ClimateNASA POWER, 1991–2020
Entrances, springs, sinkholes, opening hours and what is around© OpenStreetMap contributors · ODbL
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons
Rivers, waterfalls, lakes, mountains, canyons, beaches and islands nearbyCoastya, 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.

beachesCoastyaFind your beach: sea temperature, sun and swimming month by month.Visit lakesLakeyasEvery lake on Earth: water temperature, ice, depth and the shore.Visit mountainsPeakyasEvery summit in 3D: summit weather, the 0 °C line, huts and trails.Visit waterfallsCascadyasEvery waterfall: height, flow month by month and when it roars.Visit islandsIslandyasEvery island from the sea up: size, sea temperature, ferries and 3D.Visit riversRiveryasEvery river from source to sea: the journey, the flow and the basin in numbers.Visit canyonsCanyonyasEvery canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Visit
cavesCavernyasEvery cave with its real depth and length: the rock above, the temperature inside all year, and how to visit.You are here
dark skiesDarkskyasWhere the night is still dark: the sky of every place, the Milky Way month by month, the Moon, eclipses and auroras.Coming soonVisit
viewpointsViewyasEvery viewpoint with its real 360° panorama: the peaks you can name, how far you see and where the sun sets.Coming soonVisit
birdwatchingBirdyasEvery bird sanctuary and wetland with the species recorded month by month: who is resident, who comes for the summer, who only passes through.Coming soonVisit
forestsForestyaEvery forest with its land-cover rings, what grows and lives in it, and the best months to walk it.Coming soonVisit