Reservoir · Texas · United States · TWDB
Martin Lake
77.5% full
Capacity
93.41 hm³
Volume stored
72 hm³
Vs month average
93% of normal
Coordinates
32.262°N, 94.573°W
Last updated
2026-10-13
Current fill
77.5%vs 7 days ago
-1.0%losing
vs 1 year ago
-13.7%year-over-year
7-day trend
→stable
Drought context
Storage vs October average
93%of normal
77.5% full on 2026-10-13, against an average of 83.2% for October across 5 years of readings (-5.7 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: 2026-10-13.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
About Martin Lake
As of October 13, 2026, Martin Lake is filled to 77.5% of its total capacity, holding roughly 72 hm³ of water out of a maximum 93 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 (-1.0 pts), and it is 13.7 points below its level on the same date a year earlier.
Across the readings we hold for Martin Lake — 1460 data points between October 15, 2022 and October 13, 2026 — the level has ranged from a low of 71.0% (January 2, 2024) to a high of 100.0% (January 30, 2023). On average the reservoir is fullest around May and at its lowest around November.
It is operated by TWDB primarily for multiple purposes. It lies within the Texas basin at 32.262°N, 94.573°W.
Key facts
- Current fill level
- 77.5%
- Water stored
- 72 hm³
- Total capacity
- 93 hm³
- 7-day change
- ▼ 1.0 pts
- Year-on-year
- ▼ 13.7 pts
- Primary use
- Multipurpose
- River basin
- Texas
- Operator
- TWDB
- Coordinates
- 32.262°N, 94.573°W
- Last updated
- October 13, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 13 Oct 2026 | 77.5% | 72 |
| 12 Oct 2026 | 77.6% | 72 |
| 11 Oct 2026 | 77.8% | 73 |
| 10 Oct 2026 | 77.9% | 73 |
| 9 Oct 2026 | 78.1% | 73 |
| 8 Oct 2026 | 78.2% | 73 |
| 7 Oct 2026 | 78.3% | 73 |
| 6 Oct 2026 | 78.5% | 73 |
| 5 Oct 2026 | 78.7% | 74 |
| 4 Oct 2026 | 78.9% | 74 |
| 3 Oct 2026 | 79.0% | 74 |
| 2 Oct 2026 | 79.1% | 74 |