Reservoir · Texas · United States · TWDB
Amistad Reservoir
43.6% full
Capacity
2,236.81 hm³
Volume stored
976 hm³
Vs month average
126% of normal
Coordinates
29.450°N, 101.056°W
Last updated
2026-10-14
Current fill
43.6%vs 7 days ago
+0.1%gaining
vs 1 year ago
+8.0%year-over-year
7-day trend
→stable
Drought context
Storage vs October average
126%of normal
43.6% full on 2026-10-14, against an average of 34.7% for October across 5 years of readings (+8.9 points).
Data source: Texas Water Development Board (Water Data for Texas) — daily reservoir storage volume. Design capacity is unavailable for this site, so fill % is estimated against the 5-year maximum storage and may overstate fullness. Last reading: 2026-10-14.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
About Amistad Reservoir
As of October 14, 2026, Amistad Reservoir is filled to 43.6% of its total capacity, holding roughly 976 hm³ of water out of a maximum 2,237 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 (+0.1 pts), and it is 8.0 points above its level on the same date a year earlier.
Across the readings we hold for Amistad Reservoir — 1461 data points between October 15, 2022 and October 14, 2026 — the level has ranged from a low of 24.0% (July 7, 2024) to a high of 47.3% (January 18, 2023). On average the reservoir is fullest around October and at its lowest around April.
It is operated by TWDB primarily for multiple purposes. It lies within the Texas basin at 29.450°N, 101.056°W.
Key facts
- Current fill level
- 43.6%
- Water stored
- 976 hm³
- Total capacity
- 2,237 hm³
- 7-day change
- ▲ 0.1 pts
- Year-on-year
- ▲ 8.0 pts
- Primary use
- Multipurpose
- River basin
- Texas
- Operator
- TWDB
- Coordinates
- 29.450°N, 101.056°W
- Last updated
- October 14, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 14 Oct 2026 | 43.6% | 976 |
| 13 Oct 2026 | 43.6% | 976 |
| 12 Oct 2026 | 43.6% | 975 |
| 11 Oct 2026 | 43.6% | 975 |
| 10 Oct 2026 | 43.6% | 975 |
| 9 Oct 2026 | 43.6% | 975 |
| 8 Oct 2026 | 43.5% | 974 |
| 7 Oct 2026 | 43.5% | 973 |
| 6 Oct 2026 | 43.4% | 972 |
| 5 Oct 2026 | 43.4% | 970 |
| 4 Oct 2026 | 43.3% | 968 |
| 3 Oct 2026 | 43.2% | 965 |