Reservoir · Texas · United States · TWDB
Lake Buchanan
96.1% full
Capacity
1,069.05 hm³
Volume stored
1028 hm³
Vs month average
135% of normal
Coordinates
30.752°N, 98.418°W
Last updated
2026-10-14
Current fill
96.1%vs 7 days ago
-0.2%losing
vs 1 year ago
+1.0%year-over-year
7-day trend
→stable
Drought context
Storage vs October average
135%of normal
96.1% full on 2026-10-14, against an average of 71.4% for October across 5 years of readings (+24.7 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 Lake Buchanan
As of October 14, 2026, Lake Buchanan is filled to 96.1% of its total capacity, holding roughly 1,028 hm³ of water out of a maximum 1,069 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.2 pts), and it is 1.0 points above its level on the same date a year earlier.
Across the readings we hold for Lake Buchanan — 1461 data points between October 15, 2022 and October 14, 2026 — the level has ranged from a low of 43.9% (October 23, 2023) to a high of 100.0% (July 26, 2025). On average the reservoir is fullest around August and at its lowest around April.
It is operated by TWDB primarily for multiple purposes. It lies within the Texas basin at 30.752°N, 98.418°W.
Key facts
- Current fill level
- 96.1%
- Water stored
- 1,028 hm³
- Total capacity
- 1,069 hm³
- 7-day change
- ▼ 0.2 pts
- Year-on-year
- ▲ 1.0 pts
- Primary use
- Multipurpose
- River basin
- Texas
- Operator
- TWDB
- Coordinates
- 30.752°N, 98.418°W
- Last updated
- October 14, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 14 Oct 2026 | 96.1% | 1,028 |
| 13 Oct 2026 | 96.2% | 1,028 |
| 12 Oct 2026 | 96.2% | 1,028 |
| 11 Oct 2026 | 96.2% | 1,028 |
| 10 Oct 2026 | 96.2% | 1,029 |
| 9 Oct 2026 | 96.3% | 1,029 |
| 8 Oct 2026 | 96.3% | 1,029 |
| 7 Oct 2026 | 96.3% | 1,030 |
| 6 Oct 2026 | 96.3% | 1,030 |
| 5 Oct 2026 | 96.3% | 1,030 |
| 4 Oct 2026 | 96.2% | 1,029 |
| 3 Oct 2026 | 96.2% | 1,028 |