Aberdeen Upper Reservoir
Hong Kong Island · Hong Kong Island · Hong Kong Island catchments
Capacity
0.773 hm³
Coordinates
22.256°N, 114.164°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 | 0.773 hm³ |
| Usable capacity | 0.773 hm³ |
| Year built | 1931 |
| Primary use | water supply |
| Operator | Water Supplies Department (WSD) |
| Province | Hong Kong Island |
| Autonomous community | Hong Kong Island |
| River basin | Hong Kong Island catchments |
Satellite imagery: Esri, Maxar, Earthstar Geographics. 22.256, 114.164 · Open in Google Maps
About Aberdeen Upper Reservoir
As of August 16, 2026, Aberdeen Upper Reservoir is filled to 100.0% of its total capacity, holding roughly 1 hm³ of water out of a maximum 1 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 Aberdeen Upper Reservoir — 181 data points between January 16, 2019 and August 16, 2026 — the level has ranged from a low of 47.6% (April 1, 2021) to a high of 100.0% (May 1, 2019). On average the reservoir is fullest around August and at its lowest around February.
The dam at Aberdeen Upper Reservoir was completed in 1931. It is operated by Water Supplies Department (WSD) primarily for water supply. It lies within the Hong Kong Island catchments basin at 22.256°N, 114.164°E.
Key facts
- Current fill level
- 100.0%
- Water stored
- 1 hm³
- Total capacity
- 1 hm³
- 7-day change
- No change
- Year-on-year
- No change
- Primary use
- Water supply
- River basin
- Hong Kong Island catchments
- Year completed
- 1931
- Operator
- Water Supplies Department (WSD)
- Coordinates
- 22.256°N, 114.164°E
- Last updated
- August 16, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 16 Aug 2026 | 100.0% | 1 |
| 1 Aug 2026 | 100.0% | 1 |
| 16 Jul 2026 | 100.0% | 1 |
| 1 Jul 2026 | 100.0% | 1 |
| 16 Jun 2026 | 100.0% | 1 |
| 1 Jun 2026 | 100.0% | 1 |
| 16 May 2026 | 100.0% | 1 |
| 1 May 2026 | 90.0% | 1 |
| 16 Apr 2026 | 83.1% | 1 |
| 1 Apr 2026 | 81.1% | 1 |
| 16 Mar 2026 | 82.4% | 1 |
| 1 Mar 2026 | 77.6% | 1 |
Frequently asked questions
What is the current water level of Aberdeen Upper Reservoir?
As of August 16, 2026, Aberdeen Upper Reservoir is at 100.0% of its capacity, holding approximately 1 hm³ of water, according to WSD data.
Is Aberdeen Upper Reservoir reservoir full?
Aberdeen Upper Reservoir is essentially full, sitting at 100.0% of capacity as of August 16, 2026.
Is the water level at Aberdeen Upper Reservoir rising or falling?
The level at Aberdeen Upper Reservoir has been broadly stable over the latest week on record (0.0 points).
How much water can Aberdeen Upper Reservoir hold?
Aberdeen Upper Reservoir has a total capacity of 1 hm³.
Where is Aberdeen Upper Reservoir reservoir located?
Aberdeen Upper Reservoir is located in Hong Kong Island, Hong Kong, within the Hong Kong Island catchments basin (coordinates 22.256°N, 114.164°E).
When was Aberdeen Upper Reservoir dam built?
The dam at Aberdeen Upper Reservoir was completed in 1931.
What is Aberdeen Upper Reservoir used for?
Aberdeen Upper Reservoir is used primarily for water supply, and is managed by Water Supplies Department (WSD).