Tai Lam Chung Reservoir
New Territories · New Territories · New Territories catchments
Capacity
20.49 hm³
Coordinates
22.375°N, 114.023°E
Operator
Water Supplies Department (WSD)
100.0% full
Current fill
100.0%vs 7 days ago
0.0%stable
vs 1 year ago
0.0%year-over-year
7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 20.49 hm³ |
| Usable capacity | 20.49 hm³ |
| Year built | 1957 |
| Primary use | water supply |
| Operator | Water Supplies Department (WSD) |
| Province | New Territories |
| Autonomous community | New Territories |
| River basin | New Territories catchments |
Satellite imagery: Esri, Maxar, Earthstar Geographics. 22.375, 114.023 · Open in Google Maps
About Tai Lam Chung Reservoir
As of August 16, 2026, Tai Lam Chung Reservoir is filled to 100.0% of its total capacity, holding roughly 21 hm³ of water out of a maximum 20 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it sits close to where it was a year earlier.
Across the readings we hold for Tai Lam Chung Reservoir — 181 data points between January 16, 2019 and August 16, 2026 — the level has ranged from a low of 48.1% (October 1, 2021) to a high of 100.0% (June 16, 2022). On average the reservoir is fullest around October and at its lowest around January.
The dam at Tai Lam Chung Reservoir was completed in 1957. It is operated by Water Supplies Department (WSD) primarily for water supply. It lies within the New Territories catchments basin at 22.375°N, 114.023°E.
Key facts
- Current fill level
- 100.0%
- Water stored
- 21 hm³
- Total capacity
- 20 hm³
- 7-day change
- No change
- Year-on-year
- No change
- Primary use
- Water supply
- River basin
- New Territories catchments
- Year completed
- 1957
- Operator
- Water Supplies Department (WSD)
- Coordinates
- 22.375°N, 114.023°E
- Last updated
- August 16, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 16 Aug 2026 | 100.0% | 20 |
| 1 Aug 2026 | 100.0% | 20 |
| 16 Jul 2026 | 100.0% | 20 |
| 1 Jul 2026 | 100.0% | 20 |
| 16 Jun 2026 | 72.3% | 15 |
| 1 Jun 2026 | 56.4% | 12 |
| 16 May 2026 | 63.4% | 13 |
| 1 May 2026 | 75.2% | 15 |
| 16 Apr 2026 | 74.3% | 15 |
| 1 Apr 2026 | 75.2% | 15 |
| 16 Mar 2026 | 75.2% | 15 |
| 1 Mar 2026 | 67.5% | 14 |
Frequently asked questions
What is the current water level of Tai Lam Chung Reservoir?
As of August 16, 2026, Tai Lam Chung Reservoir is at 100.0% of its capacity, holding approximately 21 hm³ of water, according to WSD data.
Is Tai Lam Chung Reservoir reservoir full?
Tai Lam Chung Reservoir is essentially full, sitting at 100.0% of capacity as of August 16, 2026.
Is the water level at Tai Lam Chung Reservoir rising or falling?
The level at Tai Lam Chung Reservoir has been broadly stable over the latest week on record (0.0 points).
How much water can Tai Lam Chung Reservoir hold?
Tai Lam Chung Reservoir has a total capacity of 20 hm³.
Where is Tai Lam Chung Reservoir reservoir located?
Tai Lam Chung Reservoir is located in New Territories, Hong Kong, within the New Territories catchments basin (coordinates 22.375°N, 114.023°E).
When was Tai Lam Chung Reservoir dam built?
The dam at Tai Lam Chung Reservoir was completed in 1957.
What is Tai Lam Chung Reservoir used for?
Tai Lam Chung Reservoir is used primarily for water supply, and is managed by Water Supplies Department (WSD).