Lake Nasworthy Water Level Today
Daily level, percent full and history for Lake Nasworthy, on the South Concho River in Texas.
Updated · Source: Texas Water Development BoardTWDB
Is Lake Nasworthy full?
No. Lake Nasworthy is 87.6% full, 0.83 ft below full pool. It is 0.13 ft higher than a year ago (1,871.75 ft on Nov 9, 2025).
Lake Nasworthy level history
Full pool 1,872.7 ft
View data table
| Date | Level (ft) | % full |
|---|---|---|
| Nov 9, 2026 | 1,871.88 | 87.6% |
| Nov 8, 2026 | 1,871.83 | 86.9% |
| Nov 7, 2026 | 1,871.76 | 86.0% |
| Nov 6, 2026 | 1,871.75 | 85.9% |
| Nov 5, 2026 | 1,871.76 | 86.0% |
| Nov 4, 2026 | 1,871.76 | 86.0% |
| Nov 3, 2026 | 1,871.77 | 86.1% |
| Nov 2, 2026 | 1,871.79 | 86.4% |
| Nov 1, 2026 | 1,871.77 | 86.1% |
| Oct 31, 2026 | 1,871.78 | 86.3% |
| Oct 30, 2026 | 1,871.78 | 86.3% |
| Oct 29, 2026 | 1,871.77 | 86.1% |
| Oct 28, 2026 | 1,871.76 | 86.0% |
| Oct 27, 2026 | 1,871.75 | 85.9% |
| Oct 26, 2026 | 1,871.74 | 85.8% |
| Oct 25, 2026 | 1,871.74 | 85.8% |
| Oct 24, 2026 | 1,871.75 | 85.9% |
| Oct 23, 2026 | 1,871.76 | 86.0% |
| Oct 22, 2026 | 1,871.74 | 85.8% |
| Oct 21, 2026 | 1,871.73 | 85.6% |
| Oct 20, 2026 | 1,871.71 | 85.4% |
| Oct 19, 2026 | 1,871.68 | 85.0% |
| Oct 18, 2026 | 1,871.67 | 84.9% |
| Oct 17, 2026 | 1,871.67 | 84.9% |
| Oct 16, 2026 | 1,871.68 | 85.0% |
| Oct 15, 2026 | 1,871.70 | 85.2% |
| Oct 14, 2026 | 1,871.70 | 85.2% |
| Oct 13, 2026 | 1,871.69 | 85.1% |
| Oct 12, 2026 | 1,871.69 | 85.1% |
| Oct 11, 2026 | 1,871.71 | 85.4% |
| Oct 10, 2026 | 1,871.71 | 85.4% |
Full pool 1,872.7 ftLow 1,871.66 ft · Mar 16High 1,872.00 ft · Nov 24
View data table
| Month | Low (ft) | High (ft) |
|---|---|---|
| Nov 2026 | 1,871.75 | 1,871.88 |
| Oct 2026 | 1,871.67 | 1,871.78 |
| Sep 2026 | 1,871.72 | 1,871.78 |
| Aug 2026 | 1,871.68 | 1,871.78 |
| Jul 2026 | 1,871.72 | 1,871.87 |
| Jun 2026 | 1,871.69 | 1,871.73 |
| May 2026 | 1,871.70 | 1,871.78 |
| Apr 2026 | 1,871.76 | 1,872.00 |
| Mar 2026 | 1,871.66 | 1,871.80 |
| Feb 2026 | 1,871.74 | 1,871.82 |
| Jan 2026 | 1,871.73 | 1,871.84 |
| Dec 2025 | 1,871.75 | 1,871.86 |
| Nov 2025 | 1,871.74 | 1,872.00 |
Full pool 1,872.7 ft
View data table
| Year | Low (ft) | High (ft) |
|---|---|---|
| 2026 | 1,871.66 | 1,872.00 |
| 2025 | 1,871.64 | 1,872.18 |
| 2024 | 1,871.60 | 1,872.52 |
| 2023 | 1,871.01 | 1,871.93 |
| 2022 | 1,871.06 | 1,871.63 |
| 2021 | 1,870.97 | 1,871.99 |
| 2020 | 1,871.18 | 1,871.63 |
| 2019 | 1,871.17 | 1,871.80 |
| 2018 | 1,870.26 | 1,872.15 |
| 2017 | 1,870.45 | 1,871.18 |
| 2016 | 1,870.92 | 1,871.09 |
Full pool 1,872.7 ftHighest 1,872.52 ft · Nov 9, 2024Lowest 1,867.73 ft · May 6, 2014
View data table
| Decade | Low (ft) | High (ft) |
|---|---|---|
| 2020s | 1,870.97 | 1,872.52 |
| 2010s | 1,867.73 | 1,872.15 |
| 2000s | 1,869.58 | 1,872.30 |
| 1990s | 1,870.09 | 1,872.13 |
- Lake Nasworthy level
- Full pool 1,872.7 ft
- Above full pool
Lake Nasworthy on Nov 9 in past years
| Year | Level (ft) | vs today | % full |
|---|---|---|---|
| 2026today | 1,871.88 | — | |
| 2025 | 1,871.75 | −0.13 | |
| 2024 | 1,872.52 | +0.64 | |
| 2023 | 1,871.77 | −0.11 | |
| 2022 | 1,871.17 | −0.71 | |
| 2021 | 1,871.09 | −0.79 | |
| 2020 | 1,871.27 | −0.61 | |
| 2019 | 1,871.25 | −0.63 | |
| 2018 | 1,871.47 | −0.41 | |
| 2017 | 1,871.02 | −0.86 | |
| 2016 | 1,871.09 | −0.79 |
Today’s level is the highest for this date since 2024.
Lake facts
- Conservation capacity
- 9,615 acre-ft
- Surface area today
- 1,245 acres
- Highest since 1996
- 1,872.52 ftNov 9, 2024
- Lowest since 1996
- 1,867.73 ftMay 6, 2014
- Data since
- Oct 1, 1996
- Dam
- Nasworthy Damcompleted 1930
- River
- South Concho River
- Owned by
- City of San Angelo
- Dam location
- Tom Green County
- Gauge location
- 31.3886, −100.4781
Dam, river and owner from the National Inventory of Dams (USACE). Records cover Oct 1, 1996 to today (daily averages).
Lake Nasworthy map and depth
- Dam and level gauge
- Average depth when full
- about 7 ftcapacity ÷ surface area
- Average depth today
- about 7 ftstorage ÷ surface area today
- Surface area
- about 1,340 acresmeasured on the OpenStreetMap outline
- Height of Nasworthy Dam
- 47 ftNational Inventory of Dams
The outline shows the mapped shoreline, not today’s water line: when the lake is low, the water stands back from it.
Fishing on Lake Nasworthy
- Main fish species
- Largemouth bass, white crappie, channel & flathead catfish and white bass
- Bag and length limits
- Special limits for some species: check the TPWD lake guide
- Last stocking
- 2022: 56,457 sunshine bass fingerlings
| Year | Species | Number | Size |
|---|---|---|---|
| 2022 | Sunshine bass | 56,457 | Fingerling |
| 2022 | Sunshine bass | 127,038 | Fry |
| 2020 | Sunshine bass | 104,869 | Fingerling |
| 2019 | Palmetto bass | 41,544 | Fingerling |
| 2018 | Palmetto bass | 101,800 | Fingerling |
This week’s fishing report (TPWD) · TPWD guide to Lake Nasworthy
Species, fishing rules and stocking records from the Texas Parks and Wildlife Department (checked Nov 9, 2026).
Weather on the lake
- Today67°FHighLow 54°FSSE 0–5 mphChance Rain Showers
- Tonight54°FLowCalmPartly Cloudy then Slight Chance Rain Showers
- Tuesday71°FHighLow 53°FSSW 0–5 mphMostly Sunny
- Wednesday76°FHighLow 47°FWNW 5 mphMostly Sunny
- Thursday73°FHighLow 44°FNW 0–5 mphSunny
- Friday71°FHighLow 45°FE 0–5 mphSunny
- Saturday70°FHighLow 51°FS 5–15 mphSunny
Forecast: National Weather Service for the dam area (31.39, −100.48). Wind speeds are forecasts, not measurements.
Nearby lakes
Quick answers
What is the full pool level of Lake Nasworthy?
1,872.7 ft above mean sea level, the top of its conservation pool. Above it, water is released or flows over the spillway of Nasworthy Dam.
How much does Lake Nasworthy need to be full?
Lake Nasworthy needs 0.83 ft more water to reach full pool (1,872.7 ft), or about 1,196 acre-ft of storage, as of Nov 9, 2026.
How deep is Lake Nasworthy?
Lake Nasworthy is about 7 ft deep on average when full: 9,615 acre-ft of storage spread over about 1,340 acres of surface. At today’s level the average depth is about 7 ft. As in most reservoirs, the deepest water is in the old river channel near Nasworthy Dam.
What fish are in Lake Nasworthy?
Texas Parks and Wildlife lists largemouth bass, white crappie, channel & flathead catfish and white bass as the main fish in Lake Nasworthy. The last stocking was in 2022: 56,457 sunshine bass fingerlings.
Is Lake Nasworthy rising or falling?
It is rising: +0.09 ft in the last 7 days and +0.05 ft in 24 hours, to 1,871.88 ft on Nov 9, 2026 (Texas Water Development Board).
What is the highest level in our data?
Lake Nasworthy reached 1,872.52 ft on Nov 9, 2024. The lowest was 1,867.73 ft on May 6, 2014 (TWDB data since 1996; older records are not in this data set).
How much has Lake Nasworthy changed in the last year?
In the last 12 months it ranged from 1,871.66 ft (Mar 16, 2026) to 1,872.00 ft (Nov 24, 2025), a swing of 0.34 ft.
How often is this page updated?
This page is updated every morning with the daily reading published by the Texas Water Development Board. The last reading is from Nov 9, 2026.
Where this data comes from
Daily reservoir data from the Texas Water Development Board (Lake Nasworthy on waterdatafortexas.org). Updated every morning. Weather from the National Weather Service. Dam details from the National Inventory of Dams.
Lake Levels Daily is an independent site, not affiliated with TWDB, LCRA, USACE, USGS, NOAA, TVA or any lake operator. Check official sources before making safety decisions.