Brazil Sentinel-2 cloudless 2016 by EOX IT Services GmbH (contains modified Copernicus Sentinel data), CC BY 4.0, with relief shading from Copernicus WorldDEM-30
The descent
The entrance, at 502 m.
The real relief above Lapa dos Brejões, 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.
7.8km
Galleries
surveyed length (Wikidata)
502m
Entrance altitude
from the 30 m relief model
26°C
Inside, all year
the yearly average outside, at the entrance
157m
Rock above
the highest point within 1.5 km
Inside and outside
26 °C inside, all year.
Deep inside, a cave keeps the average temperature of the year outside: about 26 °C here, in January and in August. In October the afternoon reaches 35 °C at the entrance, 9 °C warmer than inside: take a jacket. The best months to escape the heat are all year round. The wettest months are from November to March: water rises fast underground, so never go in without a guide after heavy rain.
- 33°20°Jan
- 32°20°Feb
- 33°21°Mar
- 32°20°Apr
- 31°19°May
- 30°18°Jun
- 30°17°Jul
- 31°17°Aug
- 33°18°Sep
- 35°20°Oct
- 34°20°Nov
- 34°20°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.
Lapa dos Brejões is a cave in Brazil. It has 7.8 km of surveyed galleries. The entrance is at 502 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.
- Senador Nilo Coelho Airport (PNZ)nearest airport with scheduled flights · 206 km in a straight lineCar hire at PNZ airport (Petrolina)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 Rio Jacaré runs highest from January to April.
The Rio Jacaré carries about 13 m³/s on average here. It runs highest from January to April. It is lowest from June to October.
- 30 m³/sJan
- 32 m³/sFeb
- 33 m³/sMar
- 27 m³/sApr
- 16 m³/sMay
- 7.6 m³/sJun
- 2.6 m³/sJul
- 2.2 m³/sAug
- 2.0 m³/sSep
- 4.0 m³/sOct
- 12 m³/sNov
- 20 m³/sDec
From about 2.0 m³/s in the lowest month to 33 m³/s in the highest. Its basin above this point covers 8,247 km².
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.
- 3other cave entrances within 3 kmGruta dos Brejões, Saída I Gruta dos Brejões, Saída II Gruta dos Brejões
- 1car parks within 2 km
- springs within 2 km
- sinkholes within 3 km
- caving clubs and spots within 15 km
- viewpoints within 3 km
- marked hiking routes within 3 km
- climbing crags within 3 km
- named waterfalls within 4 km
- information boards and visitor centres within 3 km
- bus stops within 2 km
- campsites within 8 km
- hotels and guesthouses within 8 km
- restaurants and cafés within 3 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).
Month by month
The weather outside, at the entrance.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon | 33 | 32 | 33 | 32 | 31 | 30 | 30 | 31 | 33 | 35 | 34 | 34 |
| Afternoon | 33 | 32 | 33 | 32 | 31 | 30 | 30 | 31 | 33 | 35 | 34 | 34 |
| Night | 20 | 20 | 21 | 20 | 19 | 18 | 17 | 17 | 18 | 20 | 20 | 20 |
| Rain (mm) | 100 | 82 | 86 | 63 | 18 | 14 | 12 | 10 | 12 | 34 | 72 | 78 |
| Rainy days | 11 | 12 | 12 | 8 | 4 | 4 | 3 | 2 | 2 | 4 | 9 | 10 |
| Sun hours/day | 8.2 | 7.7 | 7.8 | 7.8 | 7.6 | 8.1 | 8.6 | 9.6 | 9.9 | 9.4 | 8.4 | 8.3 |
| Afternoon | Afternoon | Night | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | 33 | 33 | 20 | 100 | 8.2 |
| Feb | 32 | 32 | 20 | 82 | 7.7 |
| Mar | 33 | 33 | 21 | 86 | 7.8 |
| Apr | 32 | 32 | 20 | 63 | 7.8 |
| May | 31 | 31 | 19 | 18 | 7.6 |
| Jun | 30 | 30 | 18 | 14 | 8.1 |
| Jul | 30 | 30 | 17 | 12 | 8.6 |
| Aug | 31 | 31 | 17 | 10 | 9.6 |
| Sep | 33 | 33 | 18 | 12 | 9.9 |
| Oct | 35 | 35 | 20 | 34 | 9.4 |
| Nov | 34 | 34 | 20 | 72 | 8.4 |
| Dec | 34 | 34 | 20 | 78 | 8.3 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the altitude of the entrance (502 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 | 131% | 42% | 115% | 134% | 108% | 117% | 164% | 109% | 152% | 247% | 256% | 2% |
| 2021 | 22% | 108% | 15% | 150% | 71% | 100% | 151% | 141% | 15% | 224% | 210% | 306% |
| 2022 | 72% | 71% | 65% | 100% | 108% | 98% | 237% | 191% | 128% | 21% | 275% | 189% |
| 2023 | 41% | 22% | 67% | 45% | 257% | 152% | 162% | 273% | 95% | 3% | 30% | 62% |
| 2024 | 159% | 127% | 52% | 139% | 86% | 160% | 81% | 137% | 22% | 71% | 59% | 6% |
| 2025 | 115% | 15% | 11% | 27% | 105% | 823% | 54% | 63% | 42% | 41% | 184% | 78% |
130% or more: wet month 70% or less: dry month
Caves nearby.
Lapa dos Brejões
Brazil
- —Depth
- 7.8 kmGalleries
- 502 mEntrance altitude
- 26 °CInside, all year
Toca da Boa Vista
Brazil · 113 km
- —Depth
- —Galleries
- 553 mEntrance altitude
- 26 °CInside, all year
Gruta Canabrava
Brazil · 152 km
- —Depth
- —Galleries
- 678 mEntrance altitude
- 24 °CInside, all year
Poço Encantado
Brazil · 218 km
- —Depth
- —Galleries
- 394 mEntrance altitude
- 25 °CInside, all year
Where these figures come from
| Name, type, published depth and length, visitors | Wikidata (Q6488074) · 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 |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
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