As of June 10, 2026, the reservoirs we track across Tamil Nadu that report live levels hold roughly 1,556 hm³ of water — about 39.9% of their combined capacity. Taken together, Tamil Nadu's reservoirs are low.

Across the region, 10 reservoirs are at critically low levels and 9 are low. Mordhana is the fullest at 96.6%, while Manimukthanadhi is the lowest at 0.0%.

Over the most recent week on record, 1 reservoir fell across Tamil Nadu.

Storage figures for Tamil Nadu come from CWC; the most recent reading is from June 10, 2026. Each reservoir below links to its own page with full history and seasonal context.

Tamil Nadu at a glance

Reservoirs tracked: 28
Average fill: 39.9%
Water stored: 1,556 hm³
Combined capacity: 3,895 hm³
At critically low levels: 10
Fullest: Mordhana (96.6%)
Lowest: Manimukthanadhi (0.0%)
Last updated: June 10, 2026

Frequently asked questions

How full are reservoirs in Tamil Nadu right now?

As of June 10, 2026, the reservoirs tracked in Tamil Nadu that report live levels are 39.9% full overall, holding about 1,556 hm³ of water.

How many reservoirs are there in Tamil Nadu?

reservoirs.earth tracks 28 reservoirs in Tamil Nadu, with a combined storage capacity of 3,895 hm³.

Which reservoir in Tamil Nadu is the fullest?

Mordhana is currently the fullest reservoir in Tamil Nadu, at 96.6% of capacity.

Which reservoir in Tamil Nadu is the lowest?

Manimukthanadhi is currently the lowest in Tamil Nadu, at 0.0% of capacity.

Where does the reservoir data for Tamil Nadu come from?

All storage figures for Tamil Nadu come from CWC, an official source, last updated June 10, 2026.

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