Reservoir · South Australia · Australia · BOM Water Data Online
Myponga
66.4% full
Capacity
27.6 hm³
Volume stored
18 hm³
River
Myponga River
Year completed
1962
Coordinates
35.391°S, 138.452°E
Last updated
2026-07-25
Current fill
66.4%vs 7 days ago
0.0%stable
vs 1 year ago
+18.8%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: 2026-07-25.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. -35.391, 138.452 · Open in Google Maps
About Myponga
As of July 25, 2026, Myponga is filled to 66.4% of its total capacity, holding roughly 18 hm³ of water out of a maximum 28 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it is 18.8 points above its level on the same date a year earlier.
Across the readings we hold for Myponga — 1092 data points between July 30, 2023 and July 25, 2026 — the level has ranged from a low of 47.0% (May 23, 2026) to a high of 91.8% (September 8, 2023). On average the reservoir is fullest around September and at its lowest around May.
The dam at Myponga was completed in 1962. It is operated by BOM primarily for water supply. It lies within the Myponga River Basin basin at 35.391°S, 138.452°E.
Key facts
- Current fill level
- 66.4%
- Water stored
- 18 hm³
- Total capacity
- 28 hm³
- 7-day change
- No change
- Year-on-year
- ▲ 18.8 pts
- Primary use
- Water supply
- River
- Myponga River
- River basin
- Myponga River Basin
- Year completed
- 1962
- Operator
- BOM
- Coordinates
- 35.391°S, 138.452°E
- Last updated
- July 25, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 25 Jul 2026 | 66.4% | 18 |
| 24 Jul 2026 | 66.4% | 18 |
| 23 Jul 2026 | 66.2% | 18 |
| 22 Jul 2026 | 66.1% | 18 |
| 21 Jul 2026 | 66.1% | 18 |
| 20 Jul 2026 | 66.1% | 18 |
| 19 Jul 2026 | 66.1% | 18 |
| 18 Jul 2026 | 66.0% | 18 |
| 17 Jul 2026 | 65.9% | 18 |
| 16 Jul 2026 | 65.8% | 18 |
| 15 Jul 2026 | 65.6% | 18 |
| 14 Jul 2026 | 64.5% | 18 |
Frequently asked questions
What is the current water level of Myponga?
As of July 25, 2026, Myponga is at 66.4% of its capacity, holding approximately 18 hm³ of water, according to BOM data.
Is Myponga reservoir full?
No. As of July 25, 2026, Myponga is within its normal operating range at 66.4% of its capacity, so it is not full.
Is the water level at Myponga rising or falling?
The level at Myponga has been broadly stable over the latest week on record (0.0 points).
How much water can Myponga hold?
Myponga has a total capacity of 28 hm³.
Where is Myponga reservoir located?
Myponga is located in South Australia, Australia, within the Myponga River Basin basin (coordinates 35.391°S, 138.452°E).
When was Myponga dam built?
The dam at Myponga was completed in 1962.
What is Myponga used for?
Myponga is used primarily for water supply, and is managed by BOM.