Lake Earl
Okaloosa County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Lake Earl. Here is what has been measured.
- Public access
- Limited data
Lake Earl in Okaloosa County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 5.2 ft visibility. Phosphorus: 17 µg/L.
Lake Earl is a lake in Okaloosa County, Florida. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-07-21. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lake Earl 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 Lake Earl
These are the measurements Florida DEP publishes for Lake Earl, 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 5.2 ft. Phosphorus 17 µg/L. TSI 49.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5.2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 17µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| 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. | 49 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Lake Earl
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Lake Earl typically sits around 77°F at the surface in October. Summer average is about 90°F. Usually warmest in Aug (about 90°F) and coldest in Mar (about 69°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (69°F) to its warmest (90°F).
Typical surface water temperature by month, from 17 field readings (2016–2025) via the EPA Water Quality Portal. See the full Lake Earl water temperature breakdown →
Stays via Stay22
Stays near Lake Earl
Compare lakeside cabins, hotels, and vacation rentals near Lake Earl in Okaloosa County, Florida — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
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Fishing Lake Earl
Nearby Lakes in Okaloosa County
Frequently asked questions about Lake Earl
Where is Lake Earl?
- Lake Earl is a lake in Okaloosa County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Lake Earl?
- Lake Earl in Okaloosa County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 5.2 ft visibility. Phosphorus: 17 µg/L.
Is Lake Earl 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 Lake Earl?
- Lake Earl typically sits around 77°F at the surface in October, from 17 EPA Water Quality Portal field readings (2016–2025). That is a typical value for the month, not a live reading.
Can I fish at Lake Earl?
- Public access to Lake Earl is listed as yes on the lake record. 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 Lake Earl across LakeQuality
Planning a trip around Gulf Islands?
Lake Earl is about 39 miles from Gulf Islands National Seashore. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Gulf Islands →More lakes in Florida
Other Lakes in Florida
Mesotrophic Lakes in Florida
Where this data comes from
6 measurements from 1 monitoring station, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FL Dept. of Environmental Protection, Northwest District
21FLPNS_WQX6 samples · 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.