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Texas›Llano County›Lake Buchanan

Lake Buchanan

Limited dataInteractive depth contours
--°FLoading forecastWind pendingHumidity pendingPending fishingForecast
Lake BuchananLlano County, TX
Contours load with map
Interactive depth contours5-foot typical interval · Official Texas Water Development Board survey bathymetry · Not for navigation
Source: Texas Water Development Boardhigh confidence · QA passed · Select a contour to inspect its mapped depthOfficial TWDB hydrographic survey (2019-07): measured depth contours at a 5-ft interval (deepest mapped contour 105 ft), referenced to the survey pool elevation of 1020.0 ft. Depths shift with reservoir level. Bathymetry © Texas Water Development Board. Not for navigation.

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Plan your lake day

Fishing spots, food, lodging, marinas, and rentals around Lake Buchanan.

Start here

Fishing

Fishing at Lake Buchanan

Angler catch reportsWeather windows

Angler reports · Fishbrain

What anglers catch here

Anglers have logged 1,328 catches on Lake Buchanan via Fishbrain — 101 in the last 30 days, most recently on Jul 26, 2026.

Most-reported species

  • Largemouth bass398 reports · peaks July
  • Striped bass155 reports · peaks June
  • Channel catfish118 reports · peaks July
  • White bass107 reports · peaks July
  • Blue catfish87 reports · peaks March
  • Freshwater drum61 reports · peaks May
Show 13 more species
  • Common carp51 reports · peaks October
  • White crappie36 reports · peaks March
  • Bluegill33 reports · peaks May
  • Hybrid striped bass26 reports · peaks January
  • Black crappie22 reports · peaks April
  • Spotted bass19 reports
  • Flathead catfish13 reports
  • Guadalupe bass11 reports
  • Black drum8 reports
  • Longnose gar5 reports
  • Longear sunfish4 reports
  • Smallmouth bass4 reports
  • Rainbow trout3 reports

167 of the 1,328 logged catches didn’t name a species and aren’t listed above.

Seasonality

All fish
62Jan
58Feb
165Mar
115Apr
164May
123Jun
189Jul
72Aug
30Sep
113Oct
97Nov
35Dec
Monthly reports, all fish: Jan 62 · Feb 58 · Mar 165 · Apr 115 · May 164 · Jun 123 · Jul 189 · Aug 72 · Sep 30 · Oct 113 · Nov 97 · Dec 35.

Of the 1,328 logged catches, 1,223 carry a month and 1,228 carry a year; the charts cover those.

2026 had the most reports (208).

Counts reflect reporting activity, not fish populations. Waterbody location is provider-level; exact spots and angler details aren’t shown.

Fishery details for this lakeExplore this area on Fishbrain

NWS weather

Weather windows

Weather-based planning from the National Weather Service hourly forecast near this lake — not a catch forecast.

Loading
Loading latest forecast…

Checking wind, precipitation, and near-term weather windows.

Water temperature

Lake Buchanan water temperature today

Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.

84°FPeak summer

Seasonal estimate. Checking current National Weather Service air temperatures…

Warmest water of the year. Fish hold deeper or feed in low light; swimming and watersports are at their best.

Warmest monthJuly · ~86°F
Freezing surfaceRarely freezes
Model depth inputDepth unknown
Monthly Lake Buchanan water temperatures and freeze-up FAQ →

Estimates are modeled, not measured. Actual temperatures vary with depth, wind mixing, and recent weather — verify conditions before swimming, boating, or heading onto ice.

Unknownsurface acres
Unknownmax depth feet
0public access points
30.8183, -98.4227latitude, longitude

Access

Public access points

No mapped access points yet

LakeList has not matched a public launch, park, or shoreline access point for this lake yet.

Nearby

Trip-planning places

No nearby trip-planning places yet

Depth FAQ

How deep is Lake Buchanan?

Lake Buchanan has surveyed depth contours down to 105 feet, but no separately verified maximum depth is on record yet.

Is there a free depth map of Lake Buchanan?

Yes. LakeList publishes a free interactive depth contour map of Lake Buchanan at a typical 5-foot interval, with an optional 3D underwater view, derived from Texas Water Development Board survey data.

Where does the Lake Buchanan depth map come from?

The interactive depth contours are derived from Texas Water Development Board. Each contour set passes a visual QA review against the source document before it is published. The depths are from an official Texas Water Development Board survey (measured bathymetric contours); not for navigation.

View the full Lake Buchanan depth map →

Trust and freshness

Where this lake data comes from

USGS GNIS Domestic Namesname, coordinates, county, source identifiers
LakeList record updated 2026-05-23

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