Tamil Nadu

As of September 11, 2026, the reservoirs we track across Tamil Nadu that report live levels hold roughly 2,087 hm³ of water — about 42.5% of their combined capacity. Taken together, Tamil Nadu's reservoirs are within their normal operating range.

Across the region, 15 reservoirs are at critically low levels and 4 are low. Sholayar is the fullest at 88.3%, while Sathaiyar Odai is the lowest at 0.0%.

Over the most recent week on record, 3 reservoirs rose and 5 reservoirs fell across Tamil Nadu.

Storage figures for Tamil Nadu come from CWC; the most recent reading is from September 11, 2026. Each reservoir below links to its own page with full history and seasonal context.