Dong Phou Vieng Nature Reserve

Mountainous Lao forest landscape with karst formations

Dong Phou Vieng in Savannakhet is a protected karst and forest landscape with caves, limestone cliffs and upland forest. Travelers arrive for caving, trekking and birdwatching in a relatively undeveloped natural area.

Dong Phou Vieng at a Glance#

Address: Dong Phou Vieng National Protected Area, Savannakhet Province, Laos

About Dong Phou Vieng#

Dong Phou Vieng is a protected area in Savannakhet province, Laos, designated to conserve forested hills and karst features in a largely rural landscape. It is notable for its mixed habitats and ecological value at the provincial scale.

Remote forested ridges, limestone outcrops and cave systems characterise the area, along with trails used by local communities; the site is primarily of interest for nature conservation and low-intensity ecotourism rather than developed visitor services. Wildlife and plant diversity reflect the transitional environments of interior southern Laos.

The area has been managed under Laos’ protected-area framework to conserve habitat and reduce pressures from agriculture and hunting, with collaboration between local communities and conservation authorities on sustainable use.

Dong Phou Vieng lies in Savannakhet province in central-southern Laos, inland from the Mekong corridor in a landscape of hills and forested karst.

  • Landscape features: The area contains a mix of limestone karst and forested hills with caves and seasonal streams that are locally important for biodiversity and traditional land use.

Best Time to Visit Dong Phou Vieng#

Visit Dong Phou Vieng in the dry season (Nov-Apr) for the best hiking conditions and accessibility.

Dry season
Nov-Apr · 18-32°C
Easier hiking and better trail access for visiting Dong Phou Vieng; generally clearer skies.
Wet / Monsoon season
May-Oct · 22-33°C
Regular heavy rains can make trails slippery and reduce visibility; plan around afternoon downpours.
Hot season
Mar-May · 24-34°C
Hottest period of the year - avoid midday exertion and carry ample water.

Weather & Climate near Dong Phou Vieng#

Climate

Dong Phou Vieng's climate is classified as Tropical Savanna - Tropical Savanna climate with hot summers (peaking in May) and warm winters (coldest in January). Temperatures range from 16°C to 33°C. Abundant rainfall (1767 mm/year), wettest in September with a pronounced dry season.

Air Quality: AQI 74 Moderate
Best Time to Visit
JanuaryFebruaryDecember
Temperature & Rainfall
Temperature Range
41°
Warmest Month
9°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Ideal 16° - 27° 22° 5 mm mostly sunny 80% 1.8 m/s 1.7 very high 11.1h
February Ideal 18° - 29° 24° 9 mm mostly sunny 74% 1.5 m/s 1.8 very high 11.5h
March Ideal 21° - 32° 26° 28 mm some cloud 71% 1.5 m/s 1.8 very high 11.9h
April Very Good 23° - 33° 31° 75 mm partly cloudy 68% 1.5 m/s 2.0 extreme 12.4h
May Acceptable 24° - 32° 32° 202 mm overcast 74% 1.4 m/s 2.1 extreme 12.8h
June Acceptable 24° - 32° 31° 204 mm overcast 78% 1.5 m/s 2.0 extreme 13.0h
July Acceptable 24° - 31° 31° 358 mm overcast 82% 1.5 m/s 1.9 very high 12.9h
August Good 24° - 31° 31° 357 mm overcast 86% 1.5 m/s 1.8 very high 12.6h
September Good 23° - 30° 27° 361 mm overcast 87% 1.1 m/s 1.9 very high 12.1h
October Very Good 22° - 29° 25° 119 mm partly cloudy 86% 1.3 m/s 1.7 very high 11.7h
November Excellent 19° - 28° 23° 39 mm some cloud 84% 1.5 m/s 1.6 very high 11.2h
December Ideal 17° - 27° 22° 10 mm some cloud 83% 1.5 m/s 1.5 very high 11.0h