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Bou Sra Waterfall

Waterfall

Tall cascade in Mondulkiri province reached from Sen Monorom; visitors come for waterfall viewpoints, roadside restaurants and short jungle walks.

Bou Sra Waterfall Stung TrengKratiéBanlungLumphatSenmonoromIrrawaddy DolphinsLake Yeak LaomVirachey National ParkBou Sra Waterfall

Bou Sra Waterfall essentials

Country: Cambodia
Driest months: Dec-Feb
Pay in: Riels (៛)
Language: Khmer
Emergency: 117

Bou Sra Waterfall at a Glance#

Bou Sra Waterfall is a multi-tiered waterfall in Mondulkiri province, eastern Cambodia, and is one of the province’s most visited natural attractions.

The site is valued for its tall cascades set in remnant rainforest and open viewing ledges above and below the drop. Walks and informal paths lead to several viewpoints where visitors can photograph the falls and the surrounding forest.

The waterfall is a natural feature long known to local communities and has become a regional tourist destination in recent decades as Mondulkiri developed modest visitor facilities. There are no major constructed works at the falls beyond basic viewing platforms and trails.

The falls sit in eastern Mondulkiri province, within driving distance of the provincial capital Sen Monorom, and are set among rolling hills and patches of evergreen forest typical of the area.

  • Access: Located in eastern Mondulkiri province, reachable from the provincial capital Sen Monorom by local roads and short forest tracks.
  • Best time to visit: Best visited during the dry season when paths are firmer and viewpoints above the falls are easier to reach.

Exploring Bou Sra Waterfall#

Bou Sra is the largest waterfall in Cambodia and a popular place for swimming and picnicking. It falls in three separate tiers: the first drops more than 9 m and the second roughly double that. For most visitors these two tiers are the whole experience, and many never learn there is a third.

The water runs faster at the third tier and the forest there is dense enough to make the approach impractical. There are no maintained trails to it, and locals warn that dangerous wildlife makes the visit unwise; whether or not that is so, few venture that far.

The upper two tiers are reached by a sealed road, making the falls easy to get to by moto, hire car or motorbike. From Sen Monorom the trip takes less than an hour.

When to Go

Best Time to Visit Bou Sra Waterfall#

Late dry season offers reliable access; wet season provides the most impressive waterfall volume.

Dry season
November-April · 24-32°C (75-90°F)
Easier access on unpaved roads and clearer paths to the falls.
Wet season
May-October · 23-30°C (73-86°F)
Water flow is strongest and the falls are most dramatic, but access may be more difficult.

Weather & Climate near Bou Sra Waterfall#

Climate

Bou Sra Waterfall's climate is classified as Tropical Savanna - Tropical Savanna climate with consistently warm temperatures year-round. Temperatures range from 16°C to 30°C. Abundant rainfall (1984 mm/year), wettest in September with a pronounced dry season.

Air Quality: AQI 72 Moderate
Best Time to Visit
FebruaryJanuaryMarch
Temperature & Rainfall
Temperature Range
41°
Warmest Month
11°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Excellent 17° - 25° 21° 2 mm partly cloudy 71% 2.6 m/s 1.9 very high 11.4h
February Ideal 17° - 27° 22° 7 mm some cloud 64% 2.0 m/s 2.3 extreme 11.6h
March Excellent 19° - 29° 24° 37 mm partly cloudy 59% 1.6 m/s 2.4 extreme 12.0h
April Very Good 21° - 30° 25° 101 mm partly cloudy 59% 1.7 m/s 2.4 extreme 12.3h
May Good 21° - 29° 25° 281 mm overcast 72% 1.7 m/s 2.3 extreme 12.6h
June Good 21° - 29° 25° 231 mm overcast 78% 1.7 m/s 2.2 extreme 12.7h
July Good 21° - 28° 24° 323 mm overcast 80% 2.2 m/s 2.1 extreme 12.7h
August Good 21° - 28° 24° 330 mm overcast 82% 2.2 m/s 2.1 extreme 12.4h
September Good 21° - 27° 24° 333 mm overcast 82% 1.7 m/s 2.1 extreme 12.1h
October Good 20° - 27° 23° 230 mm overcast 81% 1.5 m/s 2.0 very high 11.7h
November Very Good 19° - 26° 22° 85 mm partly cloudy 80% 2.3 m/s 1.8 very high 11.4h
December Excellent 17° - 25° 21° 24 mm partly cloudy 77% 1.9 m/s 1.7 very high 11.3h
Getting There & Around

How to Get to Bou Sra Waterfall#

Bou Sra Waterfall is in Mondulkiri province. Access is generally by road from Sen Monorom, the provincial capital - expect a multi-hour drive on unpaved roads. Local tour operators and guesthouses in Sen Monorom commonly arrange transport and guides.

Tips for Visiting Bou Sra Waterfall#

  • Hire a local driver or 4x4 for the rough roads in Mondulkiri province.
  • Visit the falls with a local guide to learn about indigenous Bunong culture in the area.
  • Bring good walking shoes - the approach includes wet rocks and some light scramble.