Bacia Hidrográfica · Brazil
Tiete River Basin
84.1% average fill
Reservoirs
6
Volume stored
7,260 hm³
Usable capacity
8,636 hm³
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All reservoirs
6 reservatóriosTRÊS IRMÃOS
São Paulo
Fill level
69.8%
2,408 hm³
/ 3,447.98 useful cap.
PROMISSÃO
São Paulo
Fill level
96.0%
2,043 hm³
/ 2,127.3 useful cap.
B. BONITA
São Paulo
Fill level
94.5%
2,426 hm³
/ 2,566.86 useful cap.
N. AVANHANDAVA
São Paulo
Fill level
84.2%
318.3 hm³
/ 378 useful cap.
IBITINGA
São Paulo
Fill level
55.5%
31 hm³
/ 55.77 useful cap.
BARIRI
São Paulo
Fill level
58.0%
34.7 hm³
/ 59.93 useful cap.
About reservoirs in Tiete River Basin
As of October 26, 2026, the reservoirs we track across Tiete River Basin that report live levels hold roughly 7,260 hm³ of water — about 84.1% of their combined capacity. Taken together, Tiete River Basin's reservoirs are high.
None of the tracked reservoirs are currently at critically low levels. PROMISSÃO is the fullest at 96.0%, while IBITINGA is the lowest at 55.5%.
Over the most recent week on record, 4 reservoirs rose and 2 reservoirs fell across Tiete River Basin.
Storage figures for Tiete River Basin come from ONS; the most recent reading is from October 26, 2026. Each reservoir below links to its own page with full history and seasonal context.
Tiete River Basin at a glance
- Reservoirs tracked
- 6
- Average fill
- 84.1%
- Water stored
- 7,260 hm³
- Combined capacity
- 8,636 hm³
- Fullest
- PROMISSÃO (96.0%)
- Lowest
- IBITINGA (55.5%)
- Last updated
- October 26, 2026