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02 Tham Pha Bahn Tham cave - panoramio

Laos Laos Cave

Tham Non

25 °C inside, all year.

See the descentHow to visit

Adriaan Castermans · CC BY-SA 3.0

The descent

The entrance, at 192 m.

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

depth not publishedEntrance527 m1.0 kmvertical × 6.5depth not publishedEntrance527 m1.0 kmvertical × 14.0

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.

192m

Entrance altitude

from the 30 m relief model

25°C

Inside, all year

the yearly average outside, at the entrance

246m

Rock above

the highest point within 1.5 km

Inside and outside

25 °C inside, all year.

Deep inside, a cave keeps the average temperature of the year outside: about 25 °C here, in January and in August. In April the afternoon reaches 35 °C at the entrance, 10 °C warmer than inside: take a jacket. The best months to escape the heat are from February to November.

outside, at the entrance (192 m)inside
  1. 27°14°Jan
  2. 30°16°Feb
  3. 33°20°Mar
  4. 35°23°Apr
  5. 33°24°May
  6. 31°24°Jun
  7. 30°24°Jul
  8. 29°24°Aug
  9. 30°23°Sep
  10. 29°21°Oct
  11. 28°18°Nov
  12. 26°15°Dec
Inside: 25 °C all yearEscape the heat: Feb–NovWettest: May–Sep

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 Laos

Tham Non is a cave in Laos. The entrance is at 192 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.
  • Thakhèknearest town · 8.4 km in a straight line
  • Nakhon Phanom Airport (KOP)nearest airport with scheduled flights · 28 km in a straight lineCar hire in Nakhon PhanomDiscover Cars · sponsored link

Plan the visit

Guided tours, a bed nearby, a car.

Car hire in Nakhon PhanomDiscover CarsSee prices 

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 Tham Non (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.

  • 2campsites within 8 km
  • 13hotels and guesthouses within 8 kmHOTEL, Samy's Guesthouse, Green Climbers Home Camp 1 and 10 more
  • other cave entrances within 3 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
  • car parks within 2 km
  • information boards and visitor centres within 3 km
  • bus stops within 2 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).

Towns nearby

  • Thakhèk8.4 km in a straight line
  • Nakhon Phanom14 km in a straight line

In our other atlases

What else is around Tham Non.

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

Peakyas1 mountains within 10 km
Phou Tham Nam · 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
Afternoon273033353331302930292826
Afternoon273033353331302930292826
Night141620232424242423211815
Rain (mm)91545661712033343342361192213
Rainy days3481120232527221454
Sun hours/day6.46.45.66.05.64.53.73.24.35.05.95.9
AfternoonAfternoonNightRain (mm)Sun hours/day
Jan27271496.4
Feb303016156.4
Mar333320455.6
Apr353523666.0
May3333241715.6
Jun3131242034.5
Jul3030243343.7
Aug2929243343.2
Sep3030232364.3
Oct2929211195.0
Nov282818225.9
Dec262615135.9

Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the altitude of the entrance (192 m) with the standard lapse rate. Not a forecast.

Photographs

Inside and around.

05 Tham Xieng Liap - panoramio
Adriaan Castermans · CC BY-SA 3.0

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
2020200%73%218%85%109%41%57%141%62%306%109%78%
202131%233%114%190%92%174%130%57%170%194%49%61%
2022100%282%185%189%165%82%101%113%133%71%304%91%
2023207%60%48%76%63%108%106%84%174%179%124%191%
2024151%33%140%7%114%124%90%73%180%51%116%102%
202538%88%63%133%103%168%127%123%101%84%248%73%

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

Caves nearby.

Tham Non

Laos

  • —Depth
  • —Galleries
  • 192 mEntrance altitude
  • 25 °CInside, all year

Tham Kong Lo

Laos · 63 km

  • —Depth
  • —Galleries
  • 246 mEntrance altitude
  • 24 °CInside, all year

See the guide

Thien Duong Cave

Vietnam · 140 km

  • —Depth
  • —Galleries
  • 253 mEntrance altitude
  • 24 °CInside, all year

See the guide

Son Doong Cave

Vietnam · 146 km

  • —Depth
  • —Galleries
  • 390 mEntrance altitude
  • 23 °CInside, all year

See the guide

Where these figures come from

Name, type, published depth and length, visitorsWikidata (Q7709775) · 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