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LakeQuality

Seminole-Silver Lake

Seminole County, FloridaView mapDirections

Florida DEP publishes the water-quality measurements for Seminole-Silver Lake. Here is what has been measured.

Clarity
13 ft
Clearer than most
Secchi · sampled 2025
Phosphorus
12 µg/L
Less phosphorus than most
Measured by Florida DEP
Water temp
~82°F
Typical for Oct · EPA WQP
Type
Mesotrophic
Trophic class
Trend
Worsening
5 years of samples
  • Mesotrophic

Seminole-Silver Lake in Seminole County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 13 ft visibility. Phosphorus: 12 µg/L.

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Seminole-Silver Lake is a mesotrophic lake in Seminole County, Florida. Overall water quality is declining over recent sampling years. Compared to the 121 other monitored lakes in Seminole County, Seminole-Silver Lake ranks #9 for water quality.

Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-03-18. Methodology: how these readings are compared.

What Seminole-Silver Lake is good for

From access and monitoring records, not editorial picks.

  • Clear water13 ft of visibility

Swimming conditions

Readings only

Low 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 Seminole-Silver Lake 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.

Get alerts for Seminole-Silver Lake →

Water quality measurements for Seminole-Silver Lake

These are the measurements Florida DEP publishes for Seminole-Silver Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

Good clarity, visible to about 13 ft. Phosphorus 12 µg/L. TSI 40.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)13ftMeasured, not scored

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus12µg/LGood
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.40Mesotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Seminole-Silver Lake

Answers come straight from the public measurements and survey records on this page.

Water Temperature

Seminole-Silver Lake typically sits around 82°F at the surface in October. Summer average is about 89°F. Usually warmest in Jul (about 89°F) and coldest in Jan (about 63°F). These are typical values by month — not a live reading.

63°
Jan
70°
Feb
73°
Mar
78°
Apr
87°
May
Jun
89°
Jul
89°
Aug
Sep
82°
Oct
73°
Nov
67°
Dec

Column height runs from this lake’s coldest month (63°F) to its warmest (89°F).

Typical surface water temperature by month, from 24 field readings (2017–2019) via the EPA Water Quality Portal. See the full Seminole-Silver Lake water temperature breakdown →

Stays via Stay22

Stays near Seminole-Silver Lake

Compare lakeside cabins, hotels, and vacation rentals near Seminole-Silver Lake in Seminole 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.

Top-rated places to stay near Seminole-Silver Lake

Prices for Oct 16–18, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a whole trip? See where to stay at Florida’s top lakes →

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Fishing Seminole-Silver Lake

Based on 5 years of monitoring (2020–2024).

  • Water clarity

    Stable

    5 years

  • Phosphorus

    Worsening

    +2.3 µg/L/yr5 years

See year-by-year chart →

Nearby Lakes in Seminole County

Frequently asked questions about Seminole-Silver Lake

Where is Seminole-Silver Lake?

Seminole-Silver Lake is a lake in Seminole County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.

What is the water quality of Seminole-Silver Lake?

Seminole-Silver Lake in Seminole County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 13 ft visibility. Phosphorus: 12 µg/L.

Measurements on this page ↑

Is Seminole-Silver Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Swimming on this page ↑

What is the water temperature of Seminole-Silver Lake?

Seminole-Silver Lake typically sits around 82°F at the surface in October, from 24 EPA Water Quality Portal field readings (2017–2019). That is a typical value for the month, not a live reading.

Temp on this page ↑

Planning a trip around Canaveral?

Seminole-Silver Lake is about 30 miles from Canaveral 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 Canaveral →

Where this data comes from

303 measurements from 3 monitoring stations, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • FLORIDA LAKEWATCH21FLKWAT_WQX303 samples · 2020–2025
Monitoring station identifiers (3)

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.