Reservoir · Tasmania · Australia · BOM Water Data Online
Dee Lagoon
0.6% full
Capacity
41.9 hm³
Volume stored
0 hm³
River
Dee River
Year completed
1956
Coordinates
42.271°S, 146.605°E
Last updated
2026-06-10
Current fill
0.6%vs 7 days ago
0.0%stable
vs 1 year ago
-2.3%year-over-year
7-day trend
→stable
Data source: Bureau of Meteorology — Water Data Online (KiWIS) — daily mean storage volume, quality-controlled. Capacity from the BOM Water Storages ArcGIS layer (total design capacity in ML). Last reading: 2026-06-10.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -42.271, 146.605 · Open in Google Maps
About Dee Lagoon
As of June 10, 2026, Dee Lagoon is filled to 0.6% of its total capacity, holding roughly 0 hm³ of water out of a maximum 42 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it is 2.3 points below its level on the same date a year earlier.
Across the readings we hold for Dee Lagoon — 1084 data points between June 12, 2023 and June 10, 2026 — the level has ranged from a low of 0.0% (December 6, 2023) to a high of 3.7% (January 8, 2024). On average the reservoir is fullest around March and at its lowest around August.
The dam at Dee Lagoon was completed in 1956. It is operated by BOM primarily for water supply. It lies within the Dee River Basin basin at 42.271°S, 146.605°E.
Key facts
- Current fill level
- 0.6%
- Water stored
- 0 hm³
- Total capacity
- 42 hm³
- 7-day change
- No change
- Year-on-year
- ▼ 2.3 pts
- Primary use
- Water supply
- River
- Dee River
- River basin
- Dee River Basin
- Year completed
- 1956
- Operator
- BOM
- Coordinates
- 42.271°S, 146.605°E
- Last updated
- June 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Jun 2026 | 0.6% | 0 |
| 9 Jun 2026 | 0.6% | 0 |
| 8 Jun 2026 | 0.7% | 0 |
| 7 Jun 2026 | 0.8% | 0 |
| 6 Jun 2026 | 0.9% | 0 |
| 5 Jun 2026 | 1.2% | 1 |
| 4 Jun 2026 | 1.4% | 1 |
| 3 Jun 2026 | 1.3% | 1 |
| 2 Jun 2026 | 1.9% | 1 |
| 1 Jun 2026 | 3.1% | 1 |
| 31 May 2026 | 3.4% | 1 |
| 30 May 2026 | 3.6% | 2 |
Frequently asked questions
What is the current water level of Dee Lagoon?
As of June 10, 2026, Dee Lagoon is at 0.6% of its capacity, holding approximately 0 hm³ of water, according to BOM data.
Is Dee Lagoon reservoir full?
No. As of June 10, 2026, Dee Lagoon is critically low at 0.6% of its capacity, so it is not full.
Is the water level at Dee Lagoon rising or falling?
The level at Dee Lagoon has been broadly stable over the latest week on record (0.0 points).
How much water can Dee Lagoon hold?
Dee Lagoon has a total capacity of 42 hm³.
Where is Dee Lagoon reservoir located?
Dee Lagoon is located in Tasmania, Australia, within the Dee River Basin basin (coordinates 42.271°S, 146.605°E).
When was Dee Lagoon dam built?
The dam at Dee Lagoon was completed in 1956.
What is Dee Lagoon used for?
Dee Lagoon is used primarily for water supply, and is managed by BOM.