Reservoir · Texas · United States · TWDB
Lake Sweetwater
16.4% full
Capacity
15.13 hm³
Volume stored
3 hm³
Vs month average
42% of normal
Coordinates
32.439°N, 100.304°W
Last updated
2026-10-13
Current fill
16.4%vs 7 days ago
-0.2%losing
vs 1 year ago
-10.4%year-over-year
7-day trend
→stable
Drought context
Storage vs October average
42%of normal
16.4% full on 2026-10-13, against an average of 38.6% for October across 5 years of readings (-22.2 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 Lake Sweetwater
As of October 13, 2026, Lake Sweetwater is filled to 16.4% of its total capacity, holding roughly 3 hm³ of water out of a maximum 15 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has held broadly steady (-0.2 pts), and it is 10.4 points below its level on the same date a year earlier.
Across the readings we hold for Lake Sweetwater — 1460 data points between October 15, 2022 and October 13, 2026 — the level has ranged from a low of 16.4% (October 12, 2026) to a high of 62.1% (October 15, 2022). On average the reservoir is fullest around November and at its lowest around September.
It is operated by TWDB primarily for multiple purposes. It lies within the Texas basin at 32.439°N, 100.304°W.
Key facts
- Current fill level
- 16.4%
- Water stored
- 3 hm³
- Total capacity
- 15 hm³
- 7-day change
- ▼ 0.2 pts
- Year-on-year
- ▼ 10.4 pts
- Primary use
- Multipurpose
- River basin
- Texas
- Operator
- TWDB
- Coordinates
- 32.439°N, 100.304°W
- Last updated
- October 13, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 13 Oct 2026 | 16.4% | 2 |
| 12 Oct 2026 | 16.4% | 2 |
| 11 Oct 2026 | 16.5% | 2 |
| 10 Oct 2026 | 16.5% | 2 |
| 9 Oct 2026 | 16.5% | 3 |
| 8 Oct 2026 | 16.5% | 3 |
| 7 Oct 2026 | 16.6% | 3 |
| 6 Oct 2026 | 16.6% | 3 |
| 5 Oct 2026 | 16.6% | 3 |
| 4 Oct 2026 | 16.6% | 3 |
| 3 Oct 2026 | 16.6% | 3 |
| 2 Oct 2026 | 16.7% | 3 |