Medina Lake water level
▲ 22.9 points from 6% a year ago
Source: waterdata.usgs.gov/monitoring-location/USGS-08179500, accessed October 1, 2026. Updated every 6 hours.
Medina Lake is at 28.9% of full pool (1020.53 ft) as of September 29, 2026. Medina Lake was last full on August 26, 2019 (95.1% of normal storage). Medina Lake is near San Antonio, Texas.
Medina Lake level history
This site counts a reservoir as full on a day its storage is at or above 95% of the dam's normal storage (National Inventory of Dams). Many reservoirs rarely reach 100%, even in wet years, because operators release water for irrigation, power or flood control before they fill, so this site treats 95% as full. Highs and lows are daily readings in the published data, not official records. Source: USGS daily data.
Storage, % of full pool, since 1997
Medina Lake is falling: 29% full, down 0.2 percentage points since September 27, 2026.
On this same date last year (September 28, 2025), Medina Lake was 6% full, 23 percentage points lower than today's 29%.
Weekly averages of the source's daily readings; older years may be monthly or sparser where that is all the source published. Download the charted data (JSON).
Medina Lake map
Medina Lake is at 29.5402, -98.9339. Open in OpenStreetMap.
The dam
- Irrigation
Sources: nid.sec.usace.army.mil, accessed September 29, 2026
On the water
No campgrounds, boat ramps, or swim spots linked to Medina Lake yet.
Common questions
- Medina Lake is at 28.9% of full pool (1020.53 ft) as of September 29, 2026.
- Medina Lake was last full on August 26, 2019, when it held 95.1% of its normal storage (elevation 1,061.58 ft). This site counts a reservoir as full on a day its storage is at or above 95% of the dam's normal storage (National Inventory of Dams). Many reservoirs rarely reach 100%, even in wet years, because operators release water for irrigation, power or flood control before they fill, so this site treats 95% as full. Based on USGS daily data since August 9, 1997.
- In USGS daily data since August 9, 1997, Medina Lake's highest elevation was 1,074.65 ft on July 5, 2002. Its lowest after it first filled (August 9, 1997) was 968.79 ft on May 25, 2025. These are the highest and lowest daily readings in the published data, not official records.
- Medina Lake is near San Antonio, Texas (29.5402, -98.9339).
- Local Government operates the dam at Medina Lake.
- Medina Lake's dam is used for Irrigation.