Reservoir · Texas · United States · USGS NWIS
Medina Lake
29.9% full
Capacity
314.34 hm³
Volume stored
94 hm³
Coordinates
29.540°N, 98.934°W
Last updated
2026-08-13
Current fill
29.9%vs 7 days ago
+0.1%gaining
vs 1 year ago
+23.5%year-over-year
7-day trend
→stable
Data source: USGS National Water Information System (NWIS) — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-08-13.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 29.540, -98.934 · Open in Google Maps
About Medina Lake
As of August 13, 2026, Medina Lake is filled to 29.9% of its total capacity, holding roughly 94 hm³ of water out of a maximum 314 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has held broadly steady (+0.1 pts), and it is 23.5 points above its level on the same date a year earlier.
Across the readings we hold for Medina Lake — 1461 data points between August 14, 2022 and August 13, 2026 — the level has ranged from a low of 1.9% (May 21, 2025) to a high of 29.9% (August 8, 2026). On average the reservoir is fullest around July and at its lowest around May.
It is operated by USGS primarily for multiple purposes. It lies within the Texas basin at 29.540°N, 98.934°W.
Key facts
- Current fill level
- 29.9%
- Water stored
- 94 hm³
- Total capacity
- 314 hm³
- 7-day change
- ▲ 0.1 pts
- Year-on-year
- ▲ 23.5 pts
- Primary use
- Multipurpose
- River basin
- Texas
- Operator
- USGS
- Coordinates
- 29.540°N, 98.934°W
- Last updated
- August 13, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 13 Aug 2026 | 29.9% | 94 |
| 12 Aug 2026 | 29.9% | 94 |
| 11 Aug 2026 | 29.9% | 94 |
| 10 Aug 2026 | 29.9% | 94 |
| 9 Aug 2026 | 29.9% | 94 |
| 8 Aug 2026 | 29.9% | 94 |
| 7 Aug 2026 | 29.8% | 94 |
| 6 Aug 2026 | 29.8% | 94 |
| 5 Aug 2026 | 29.8% | 94 |
| 4 Aug 2026 | 29.8% | 94 |
| 3 Aug 2026 | 29.7% | 93 |
| 2 Aug 2026 | 29.7% | 93 |
Frequently asked questions
What is the current water level of Medina Lake?
As of August 13, 2026, Medina Lake is at 29.9% of its capacity, holding approximately 94 hm³ of water, according to USGS NWIS data.
Is Medina Lake reservoir full?
No. As of August 13, 2026, Medina Lake is low at 29.9% of its capacity, so it is not full.
Is the water level at Medina Lake rising or falling?
The level at Medina Lake has been broadly stable over the latest week on record (+0.1 points).
How much water can Medina Lake hold?
Medina Lake has a total capacity of 314 hm³.
Where is Medina Lake reservoir located?
Medina Lake is located in Texas, United States, within the Texas basin (coordinates 29.540°N, 98.934°W).
What is Medina Lake used for?
Medina Lake is used primarily for multiple purposes, and is managed by USGS.