Pearl Lake
Pearl Lake in Seminole County, Florida has a water quality grade of B (Good). Water clarity: 9.5 ft visibility. Phosphorus: 15 µg/L.
- Clarity
- 9.5 ft
- Typical in August
- 88°F
- Type
- Mesotrophic
- Trend
- → Stable
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Pearl Lake is a mesotrophic lake in Seminole County, Florida. Water quality is graded B based on 1 sampling years through 2025. Water clarity is declining over recent sampling years. Compared to the 121 other monitored lakes in Seminole County, Pearl Lake ranks #52 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-05-19. Grade methodology: LakeQuality methodology.
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Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Good for swimming, clear water with low algae levels
Water Quality Grade: B (Good)
Moderate clarity, visible to about 9.5 ft. Phosphorus level: 15 µg/L. Trophic State Index: 44.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 9.5 ft | Not graded |
| Phosphorus | 15 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 44 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Pearl Lake
Compare lakeside cabins, hotels, and vacation rentals near Pearl 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 Pearl Lake
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 →
Water Temperature
Pearl Lake typically sits around 88°F at the surface in August. Summer average is about 87°F. Usually warmest in Aug (about 88°F) and coldest in Feb (about 67°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 50 field readings (2011–2025) via the EPA Water Quality Portal. See the full Pearl Lake water temperature breakdown →
Fishing Pearl Lake
Water Quality Trend: → Stable
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.113 m/yr | 6 |
| Phosphorus | ↑ Improving | -2.5 µg/L/yr | 5 |
EPA Impairment Status
Pearl Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4C).
Causes of impairment
Source: EPA ATTAINS assessment unit FL29977 · Official waterbody report · Matched by proximity (1.79 km)
County Ranking
Ranked #52 of 122 lakes in Seminole County
Nearby Lakes in Seminole County
Frequently asked questions about Pearl Lake
Where is Pearl Lake?
- Pearl Lake is a lake in Seminole County, Florida. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Pearl Lake?
- Pearl Lake in Seminole County, Florida has a water quality grade of B (Good). Water clarity: 9.5 ft visibility. Phosphorus: 15 µg/L.
Is Pearl Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Pearl Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
What is the water temperature of Pearl Lake?
- Pearl Lake typically sits around 88°F at the surface in August, from 50 EPA Water Quality Portal field readings (2011–2025). That is a typical value for the month, not a live reading.
Explore Pearl Lake across LakeQuality
Planning a trip around Canaveral?
Pearl Lake is about 37 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 →More Florida Lake Rankings
Other Grade B Lakes in Florida
Mesotrophic Lakes in Florida
Where this data comes from
37 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples37 samples · 2020–2025
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database