Bangladesh 
In numbers.
8m
Height
OpenStreetMap
17m³/s
Average flow
estimate
Jun–Sep
Best months
1.3MW
Water power
estimate
The water at Nafa-khum, month by month
It roars from July to August.
The fullest months: from July to August. The thinnest: from November to May.
- 1.3 m³/sJan
- 1.2 m³/sFeb
- 1.4 m³/sMar
- 2.9 m³/sApr
- 11 m³/sMay
- 30 m³/sJun
- 52 m³/sJul
- 46 m³/sAug
- 34 m³/sSep
- 20 m³/sOct
- 8.1 m³/sNov
- 2.8 m³/sDec
From about 1.2 m³/s in the lowest month to 52 m³/s in the highest. Best months to go, with plenty of water and pleasant days: from June to September.
Estimate: the timing comes from rain, snowmelt and evaporation (NASA POWER, 1991–2020); the amounts from the river model of HydroATLAS (WaterGAP, 1971–2000). Dams upstream can change the real flow.
Waterfall in Bangladesh
Nafa-khum is a waterfall in Bangladesh. The water falls 8 m.
Getting there.
- Cox's Bazar Airport (CXB)nearest airport with scheduled flights · 66 km in a straight line
- From June to Septemberbest months to go (estimate)
Plan your visit
Stay, explore and get there
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How big is it?
How big it really is.
Height of the drop as mapped in OpenStreetMap (© OpenStreetMap contributors). Buildings and the person are drawn at the same scale.
1.3 MW
About 17 m³/s falling 8 m: the power of the water as it drops.
- enough to power about 324 homes, if it were all turned into electricity
Power of falling water = density × gravity × flow × height. Average flow and height as shown above; an estimate.
Seen from the sky.
8 × 8 km of cloud-free satellite image, with what OpenStreetMap knows around the falls.
N
2 km
Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 8 × 8 km, north up. Points © OpenStreetMap contributors.
The line follows the river as mapped in OpenStreetMap; heights from the 30 m Copernicus model, which smooths narrow drops — the published height of the falls is the one above.
Around the falls the river drops 14 m in 3.6 km. Here the river runs about 104 m below the lower rim of its valley.
What is around.
- —viewpoints
- —waymarked walking routes
- —car parks
- —swimming spots
- —picnic sites
- —toilets
- —information boards and visitor centres
- —bus stops within 1 km
- —other named waterfalls within 4 km
- —caves
- —campsites
- —hotels, B&Bs and huts within 6 km
- —restaurants and cafés within 3 km
Counted in OpenStreetMap, the map anyone can edit, up to 2 km around the falls (unless noted). A low number may just mean nobody has mapped it yet. © OpenStreetMap contributors (ODbL).
Weather
The weather, month by month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon °C | 25 | 30 | 33 | 34 | 33 | 30 | 30 | 30 | 30 | 29 | 27 | 25 |
| Night °C | 12 | 14 | 19 | 22 | 24 | 25 | 25 | 24 | 24 | 23 | 18 | 14 |
| Rain & snow (mm) | 7 | 11 | 27 | 86 | 290 | 603 | 863 | 557 | 396 | 227 | 43 | 8 |
| Wet days | 1 | 1 | 2 | 7 | 15 | 22 | 26 | 26 | 20 | 13 | 3 | 1 |
| Sun h/day | 8.5 | 9.0 | 8.8 | 8.2 | 6.4 | 3.6 | 2.9 | 3.8 | 5.0 | 6.4 | 8.0 | 8.0 |
Long-term averages 1991–2020 (NASA POWER) for a cell about 55 km wide, with temperatures carried to the height of the falls (70 m) at −6.5 °C per 1,000 m. Not a forecast.
Photos
Through visitors' eyes.
Recent years
Wet years and dry years
Rain of each month as a share of the 1991–2020 average. A wet season above 100 % usually means a fuller waterfall.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 662% | 40% | 2% | 166% | 233% | 141% | 91% | 157% | 153% | 245% | 330% | 0% |
| 2021 | 0% | 0% | 1% | 74% | 55% | 151% | 118% | 164% | 73% | 123% | 0% | 826% |
| 2022 | 231% | 314% | 7% | 88% | 107% | 130% | 32% | 61% | 118% | 123% | 39% | 221% |
| 2023 | 38% | 50% | 219% | 86% | 64% | 72% | 38% | 187% | 130% | 128% | 282% | 276% |
| 2024 | 184% | 6% | 129% | 11% | 148% | 146% | 153% | 225% | 190% | 69% | 83% | 4% |
| 2025 | 4% | 10% | 71% | 166% | 167% | 131% | 124% | 84% | 93% | 103% | 149% | 114% |
130% wetter than usual 70% drier than usual
Compare with the waterfalls nearby.
Nafa-khum
Bangladesh
- 8 mHeight
- 17 m³/sAverage flow
- Jun–SepBest months
About these numbers
| Names, height, width, river | Wikidata (Q6958141) · CC0 |
|---|---|
| Height of the drop | © OpenStreetMap contributors · ODbL |
| River flow and catchment | HydroATLAS / RiverATLAS v1.0 (Linke et al. 2019) · CC BY 4.0 |
| Climate | NASA POWER, 1991–2020 |
| Relief, river profile, 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Paths, viewpoints, parking | © 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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