Grayton Lake Middle
Walton County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Grayton Lake Middle. Here is what has been measured.
- Mesotrophic
- Public access
Grayton Lake Middle in Walton County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 5 ft visibility. Phosphorus: 13 µg/L.
Grayton Lake Middle is a mesotrophic lake in Walton County, Florida. Water clarity is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 83 other monitored lakes in Walton County, Grayton Lake Middle ranks #14 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-02-15. Methodology: how these readings are compared.
What Grayton Lake Middle is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
Readings onlyLow algae
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Grayton Lake Middle is safe to swim in today is a call for the Florida Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Grayton Lake Middle
These are the measurements Florida DEP publishes for Grayton Lake Middle, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 5 ft. Phosphorus 13 µg/L. TSI 48.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 13µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 48 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Grayton Lake Middle
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Grayton Lake Middle typically sits around 76°F at the surface in October. Summer average is about 87°F. Usually warmest in Aug (about 89°F) and coldest in Jan (about 61°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (61°F) to its warmest (89°F).
Typical surface water temperature by month, from 391 field readings (2010–2025) via the EPA Water Quality Portal. See the full Grayton Lake Middle water temperature breakdown →
Recreation & Access
- Western Lake Public Boat RampPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Grayton Lake Middle
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Top-rated places to stay near Grayton Lake Middle
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Fishing Grayton Lake Middle
Water Quality Trend: Stable
Based on 5 years of monitoring (2020–2024).
Water clarity
Worsening5 years
Phosphorus
Improving-0.3 µg/L/yr5 years
Nearby Lakes in Walton County
Frequently asked questions about Grayton Lake Middle
Where is Grayton Lake Middle?
- Grayton Lake Middle is a lake in Walton County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Grayton Lake Middle?
- Grayton Lake Middle in Walton County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 5 ft visibility. Phosphorus: 13 µg/L.
Is Grayton Lake Middle safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Grayton Lake Middle?
- Grayton Lake Middle typically sits around 76°F at the surface in October, from 391 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.
Are there boat ramps on Grayton Lake Middle?
- Grayton Lake Middle has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Western Lake Public Boat Ramp. Public access is listed as yes.
Can I fish at Grayton Lake Middle?
- Grayton Lake Middle has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Florida's fish and wildlife agency, so check its current regulations before you go.
Explore Grayton Lake Middle across LakeQuality
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Mesotrophic Lakes in Florida
Where this data comes from
117 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- CHOCTAWHATCHEE BASIN ALLIANCE
21FLCBA_WQX117 samples · 2020–2025
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory