Sun Moon Lake
Central · 濁水溪(武界壩越域引水至水社水尾溪) Basin
Capacity
171.62 hm³
Coordinates
23.867°N, 120.917°E
Operator
Water Resources Agency (WRA)
Current fill
96.5%vs 7 days ago
0.0%stable
vs 1 year ago
N/A7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 171.62 hm³ |
| Usable capacity | 128.46 hm³ |
| Dam height | 30.3 m |
| Dam type | embankment |
| Primary use | Multi-purpose |
| Operator | Water Resources Agency (WRA) |
| River | 濁水溪(武界壩越域引水至水社水尾溪) |
| Autonomous community | Central |
| River basin | 濁水溪(武界壩越域引水至水社水尾溪) Basin |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 23.867, 120.917 · Open in Google Maps
About Sun Moon Lake
As of July 3, 2026, Sun Moon Lake is filled to 96.5% of its total capacity, holding roughly 124 hm³ of water out of a maximum 172 hm³. At this level the reservoir is high. Of that total, about 128 hm³ is usable (live) storage.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts).
Across the readings we hold for Sun Moon Lake — 1 data points between July 3, 2026 and July 3, 2026 — the level has ranged from a low of 96.5% (July 3, 2026) to a high of 96.5% (July 3, 2026).
The dam at Sun Moon Lake stands 30.3 m tall and is a embankment dam. It is operated by Water Resources Agency (WRA) primarily for multiple purposes. It lies within the 濁水溪(武界壩越域引水至水社水尾溪) Basin basin at 23.867°N, 120.917°E.
Key facts
- Current fill level
- 96.5%
- Water stored
- 124 hm³
- Total capacity
- 172 hm³
- Usable capacity
- 128 hm³
- 7-day change
- No change
- Primary use
- Multipurpose
- River
- 濁水溪(武界壩越域引水至水社水尾溪)
- River basin
- 濁水溪(武界壩越域引水至水社水尾溪) Basin
- Dam height
- 30.3 m
- Operator
- Water Resources Agency (WRA)
- Coordinates
- 23.867°N, 120.917°E
- Last updated
- July 3, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 3 Jul 2026 | 96.5% | 124 |
Frequently asked questions
What is the current water level of Sun Moon Lake?
As of July 3, 2026, Sun Moon Lake is at 96.5% of its capacity, holding approximately 124 hm³ of water, according to WRA data.
Is Sun Moon Lake reservoir full?
Sun Moon Lake is essentially full, sitting at 96.5% of capacity as of July 3, 2026.
Is the water level at Sun Moon Lake rising or falling?
The level at Sun Moon Lake has been broadly stable over the latest week on record (0.0 points).
How much water can Sun Moon Lake hold?
Sun Moon Lake has a total capacity of 172 hm³, of which about 128 hm³ is usable storage.
Where is Sun Moon Lake reservoir located?
Sun Moon Lake is located in Central, Taiwan, within the 濁水溪(武界壩越域引水至水社水尾溪) Basin basin (coordinates 23.867°N, 120.917°E).
What is Sun Moon Lake used for?
Sun Moon Lake is used primarily for multiple purposes, and is managed by Water Resources Agency (WRA).