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Lake Desair
Enhanced dataInteractive depth contours
Lake DesairBarron County, WI
Contours load with map Access
Interactive depth contours5-foot typical interval · Sonar-derived depth (C-MAP Genesis) · Gaps interpolated · Not for navigation
Source: C-MAP Genesis community sonar (derived)high confidence · QA passed · Select a contour to inspect its mapped depthDepths decoded from C-MAP Genesis Social Map community sonar recordings (used with permission), covering 54% of the lake. Small gaps between recordings are smoothly connected; larger unrecorded areas follow the lake's depth model calibrated to the DNR-documented 33-ft maximum depth. More accurate than a pure model, but still an estimate. Not for navigation.LakeList assistant
Plan your lake day
Fishing spots, food, lodging, marinas, and rentals around Lake Desair.
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Fishing forecast
Best windows for Lake Desair
Weather-based planning built from the National Weather Service hourly forecast near this lake.
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Checking wind, precipitation, and near-term weather windows.
Water temperature
Lake Desair water temperature today
Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.
74°FWarm
Seasonal estimate. Checking current National Weather Service air temperatures…
Comfortable summer pattern. Bass and panfish are active; early and late hours beat the midday heat.
Estimates are modeled, not measured. Actual temperatures vary with depth, wind mixing, and recent weather — verify conditions before swimming, boating, or heading onto ice.
DNR water check
Water quality quick take
From Wisconsin DNR / Citizen Lake Monitoring readings at Lake Desair at Deepest Point.
Sampled Jun 2026Volunteer monitoring since 1993
Somewhat hazy, algae-prone water — summer clarity of 6 ft is lower than most monitored Wisconsin lakes.
Based on July–August 2025 averages across 5 volunteer readings.66Eutrophic5-yr summer TSI
Nutrient-rich, greener water — more algae and plant growth, common in shallower lakes.
Water claritySecchi disk depth
6 ftJul–Aug 2025 avg (3 readings)
Slight hazeDeclining — down ~24% vs earlier years
Clearer than 37% of 596 monitored Wisconsin lakes with current readings.
AlgaeChlorophyll-a
29.5 µg/LJul–Aug 2025 avg (2 readings)
HighWorsening — up ~231% vs earlier years
No recent nutrient readings — last measured 2019.
All readings by year · station details · methodology
Summer averages (July/August)
July/August means; counts in parentheses show how many samples went into each average.
| Year | Secchi | Chlorophyll-a | Total phosphorus |
|---|---|---|---|
| 2025 | 6.0 ft (3) | 29.5 µg/L (2) | — |
| 2024 | 2.0 ft (1) | 49.0 µg/L (2) | — |
| 2023 | 1.8 ft (2) | 88.5 µg/L (2) | — |
| 2022 | — | 23.0 µg/L (1) | — |
| 2021 | 5.7 ft (7) | 17.0 µg/L (2) | — |
| 2020 | 4.4 ft (8) | 10.5 µg/L (2) | — |
| 2019 | — | 35.5 µg/L (2) | 46.0 µg/L (2) |
| 2018 | 2.8 ft (2) | 65.0 µg/L (2) | — |
| 2017 | — | 39.0 µg/L (2) | — |
| 2016 | 5.7 ft (3) | 28.0 µg/L (1) | — |
Latest individual samples: Secchi 7 ft (2025-08-11), chlorophyll-a 53 µg/L (2026-06-15), and total phosphorus 69 µg/L (2026-06-15).
Secchi clarity is how deep a black-and-white disk stays visible from the surface — more feet means clearer water.
Chlorophyll-a is an algae pigment; higher values signal more algae in the water column.
Total phosphorus is a nutrient that feeds algae and aquatic plants. It is not a weed survey — depth, bottom type, water movement, and management change the actual lake experience.
Lake Desair at Deepest PointStation 033159 · TSI based on chlorophyll
Modeled from DNR/CLMN monitoring — not a safety or swim-condition report. Verify current conditions locally. LakeList verified 2026-07-12.Official Wisconsin information
Plan with DNR sources
LakeList links to the authoritative record so you can verify maps, rules, and current notices before leaving.
Historical DNR depth maps1 converted map sheetView DNR depth mapHistorical map · not for navigationFishing regulationsVerify current seasons, limits, and restrictionsOfficial DNR lake pageFacts, advisories, boating, and water qualityWater quality reportsMonitoring stations, clarity, and DNR reportsInvasive speciesVerified, observed, and historical AIS recordsBoating ordinancesLocal slow-no-wake and water-use restrictionsFish consumption advisoriesStatewide and waterbody-specific health guidance
Historical depth maps are not for navigation. Verify regulations and access at the official source before your trip.
Historical Wisconsin DNR maps
Lake Desair depth maps
1 converted map sheet. These historical surveys are not for navigation.
Navigable depth map
Lake Desair · sheet 1
Pan, zoom, and inspect the converted Wisconsin DNR historical map image in the browser. Historical survey — not for navigation.
Source: Wisconsin DNR · WBIC 2104500 · image navigation only; spatial alignment pending · Historical lake maps are not for navigation.
Source: Wisconsin Department of Natural Resources. Converted for browser access with source URLs, checksums, and retrieval dates retained. Historical lake maps are not for navigation.
Fishbrain community activity
Recent catch activity
Aggregated public catch activity matched to Lake Desair. Exact catch locations and angler details are not shown.
Most reported species in this extract
Largemouth bass8Northern pike3Bluegill2Yellow perch1Black crappie1
Catch analytics
Seasonal fish catch patterns
Pick a species to see when anglers reported it, compare against all fish by month, then scan year-by-year catch volume.
Largemouth bass by monthMonthly reports tagged as Largemouth bass.
Jan
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Jul
Aug
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Dec
All fish by monthTotal public catch reports across every listed species.
Jan
Feb
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Apr
May
Jun
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Yearly catch viewYear-by-year public catch volume.
No yearly catch aggregates yet.
Catch counts are community reports, not a population survey or a guarantee of current fishing conditions.
View source on Fishbrain81surface acres
33max depth feet
1public access points
45.5440, -91.7790latitude, longitude
Access
Public access points
Boat launchAccess45.54624, -91.78122Managed by Wisconsin DNR
DNR verifiedDirections
Nearby
Trip-planning places
No nearby trip-planning places yet
Fishery
Notable species
Largemouth BassNorthern PikePanfish
Wisconsin DNR stocking
Fish stocking history
The latest published year is 2011, when 6,075 fish were recorded across 2 entries.
2011
BluegillUnspecified · Large Fingerling
4,0501.0 in average
2011
Largemouth BassUnspecified · Large Fingerling
2,0252.6 in average
2010
BluegillUnspecified · Large Fingerling
12,8501.0 in average
2010
Largemouth BassUnspecified · Large Fingerling
2,1753.2 in average
Depth FAQ
How deep is Lake Desair?
Lake Desair is 33 feet deep at its deepest point and averages about 17 feet, according to Wisconsin DNR records.
Is there a free depth map of Lake Desair?
Yes. LakeList publishes a free interactive depth contour map of Lake Desair at a typical 5-foot interval, with an optional 3D underwater view, derived from C-MAP Genesis community sonar (derived) survey data.
Where does the Lake Desair depth map come from?
The interactive depth contours are derived from C-MAP Genesis community sonar (derived). Each contour set passes a visual QA review against the source document before it is published. The depths are derived from community sonar recordings (C-MAP Genesis Social Map, used with permission), with gaps between recordings interpolated; not for navigation.
Trust and freshness
Where this lake data comes from
Wisconsin DNR Lake Mapsname, coordinates, county, source identifiers
LakeList record updated 2026-07-14
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