Reservoir · Tamil Nadu · India · CWC
Ponnaiyar
21.3% full
Total capacity
3 hm³
Live storage
3 hm³
River
Ponnaniyar
Basin
Cauvery
Primary use
irrigation
Operator
Tamil Nadu Water Resources Dept
Coordinates
10.580°N, 78.260°E
Last updated
2026-06-26
Current fill
21.3%vs 7 days ago
0.0%stable
vs 1 year ago
N/A7-day trend
→stable
Weekly storage
Fill history — multi-year
About this reservoir
Data source
official
Storage data: CWC (Central Water Commission) Weekly Storage Bulletin, India.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
About Ponnaiyar
As of June 26, 2026, Ponnaiyar is filled to 21.3% of its total capacity, holding roughly 1 hm³ of water out of a maximum 3 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts).
Across the readings we hold for Ponnaiyar — 1 data points between June 26, 2026 and June 26, 2026 — the level has ranged from a low of 21.3% (June 26, 2026) to a high of 21.3% (June 26, 2026).
It is operated by Tamil Nadu Water Resources Dept primarily for irrigation. It lies within the Cauvery basin at 10.580°N, 78.260°E.
Key facts
- Current fill level
- 21.3%
- Water stored
- 1 hm³
- Total capacity
- 3 hm³
- 7-day change
- No change
- Primary use
- Irrigation
- River
- Ponnaniyar
- River basin
- Cauvery
- Operator
- Tamil Nadu Water Resources Dept
- Coordinates
- 10.580°N, 78.260°E
- Last updated
- June 26, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 26 Jun 2026 | 21.3% | 1 |
Frequently asked questions
What is the current water level of Ponnaiyar?
As of June 26, 2026, Ponnaiyar is at 21.3% of its capacity, holding approximately 1 hm³ of water, according to Tamil Nadu WRD data.
Is Ponnaiyar reservoir full?
No. As of June 26, 2026, Ponnaiyar is low at 21.3% of its capacity, so it is not full.
Is the water level at Ponnaiyar rising or falling?
The level at Ponnaiyar has been broadly stable over the latest week on record (0.0 points).
How much water can Ponnaiyar hold?
Ponnaiyar has a total capacity of 3 hm³.
Where is Ponnaiyar reservoir located?
Ponnaiyar is located in Tamil Nadu, India, within the Cauvery basin (coordinates 10.580°N, 78.260°E).
What is Ponnaiyar used for?
Ponnaiyar is used primarily for irrigation, and is managed by Tamil Nadu Water Resources Dept.