Song Da Reservoir

Reservoir

Formed on the Da (Black) River, Song Da Reservoir supports hydroelectric power and irrigation; visitors take boat trips, study dam engineering and visit nearby mountain villages and riverside scenery.

Song Da Reservoir HanoiHo Chi Minh CityHa Long BayHoi AnDa NangHueSa PaNha TrangDa LatPhu QuocSong Da Reservoir
In this guide

Song Da Reservoir essentials

Country: Vietnam
Driest months: Dec-Feb
Pay in: Dong (₫)
Language: Vietnamese
Emergency: 03

Song Da Reservoir at a Glance

When to Go

Best Time to Visit Song Da Reservoir

For clearer weather and easier access, visit Song Da Reservoir in the cooler, drier months (October-March).

Cool, drier season
October-March · 12-22°C
Calmer conditions and clearer skies make this a good time for scenic boat trips and lakeside visits.
Warm, wet season
April-September · 20-30°C
Higher rainfall raises water levels and can make surrounding roads and trails muddy; expect more cloud and showers.

Weather & Climate near Song Da Reservoir

Climate

Song Da Reservoir's climate is classified as Humid Subtropical (Dry Winter) - Humid Subtropical (Dry Winter) climate with hot summers (peaking in June) and cool winters (coldest in January). Temperatures range from 11°C to 30°C. Abundant rainfall (1540 mm/year), wettest in August with a pronounced dry season.

Air Quality: AQI 81 Moderate
Best Time to Visit
NovemberDecemberJanuary
Temperature & Rainfall
Temperature Range
42°
Warmest Month
0°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Very Good 11° - 18° 14° 4 mm partly cloudy 82% 1.6 m/s 1.0 moderate 10.9h
February Very Good 12° - 19° 16° 23 mm partly cloudy 80% 1.7 m/s 1.2 high 11.4h
March Very Good 15° - 21° 18° 21 mm partly cloudy 79% 1.7 m/s 1.3 high 11.9h
April Very Good 18° - 25° 22° 78 mm overcast 76% 1.7 m/s 1.6 very high 12.5h
May Good 21° - 28° 25° 205 mm overcast 78% 1.8 m/s 2.0 extreme 13.0h
June Good 23° - 30° 26° 188 mm overcast 82% 1.8 m/s 2.1 extreme 13.2h
July Good 23° - 29° 26° 290 mm overcast 84% 1.8 m/s 2.0 extreme 13.1h
August Good 22° - 29° 26° 319 mm overcast 86% 1.3 m/s 1.9 very high 12.7h
September Good 21° - 28° 24° 286 mm overcast 85% 1.3 m/s 1.7 very high 12.1h
October Very Good 19° - 26° 22° 88 mm overcast 85% 1.5 m/s 1.3 high 11.6h
November Excellent 15° - 23° 19° 24 mm partly cloudy 83% 1.5 m/s 1.1 high 11.1h
December Very Good 12° - 20° 16° 14 mm partly cloudy 81% 1.6 m/s 0.9 moderate 10.8h
Getting There & Around

How to Get to Song Da Reservoir

The Song Da (Da River) reservoir created by Hòa Bình (Song Da) Hydropower is reached from Hòa Bình city in northwest Vietnam. From Hanoi the usual route is to drive west on National Road QL6 toward Hòa Bình - the road distance to Hòa Bình city and the reservoir area is roughly 60-80 km and typically takes about 1.5-2 hours by car or bus depending on traffic.

Once in Hòa Bình follow local roads to viewpoints or the dam; local bus services and private cars run between Hanoi and Hòa Bình.

Tips for Visiting Song Da Reservoir

  • Use Son La or nearby towns as your base and join a local boat tour to see the reservoir and shoreline from the water - boat trips reveal islands, submerged villages and dam views best seen from the lake.
  • Visit in the morning for calmer water and clearer reflections; water levels and visibility can change with hydropower operations, so check local conditions before booking a long boat trip.
  • Ask locally about public access points and boat schedules rather than trying to approach the dam area directly - the hydropower facility zones have restricted access and boat operators know permitted routes.