Hillsborough-Grace Lake
Hillsborough County, FloridaView mapDirections
No nutrient or algae sampling on record from Florida DEP for this lake.
- Limited data
Hillsborough-Grace Lake in Hillsborough County, Florida has water-quality measurements published by Florida DEP, shown here as reported.
Hillsborough-Grace Lake is a lake in Hillsborough County, Florida. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-05-05. 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 Hillsborough-Grace 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.
Water quality measurements for Hillsborough-Grace Lake
These are the measurements Florida DEP publishes for Hillsborough-Grace Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data.
Ask about Hillsborough-Grace Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Hillsborough-Grace Lake typically sits around 77°F at the surface in November. Summer average is about 87°F. Usually warmest in Aug (about 88°F) and coldest in Jan (about 51°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (51°F) to its warmest (88°F).
Typical surface water temperature by month, from 48 field readings (2010–2019) via the EPA Water Quality Portal. See the full Hillsborough-Grace Lake water temperature breakdown →
Stays via Stay22
Stays near Hillsborough-Grace Lake
Compare lakeside cabins, hotels, and vacation rentals near Hillsborough-Grace Lake in Hillsborough 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 Hillsborough-Grace Lake
Prices for Oct 16–18, 4 adults. Change dates on the map below.
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Fishing Hillsborough-Grace Lake
Water Quality Trend: Worsening
Based on 6 years of monitoring (2020–2025).
Water clarity
Worsening6 years
Phosphorus
Stable-0.19 µg/L/yr6 years
Nearby Lakes in Hillsborough County
Frequently asked questions about Hillsborough-Grace Lake
Where is Hillsborough-Grace Lake?
- Hillsborough-Grace Lake is a lake in Hillsborough County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Hillsborough-Grace Lake?
- Hillsborough-Grace Lake in Hillsborough County, Florida has water-quality measurements published by Florida DEP, shown here as reported.
Is Hillsborough-Grace Lake 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 Hillsborough-Grace Lake?
- Hillsborough-Grace Lake typically sits around 77°F at the surface in November, from 48 EPA Water Quality Portal field readings (2010–2019). That is a typical value for the month, not a live reading.
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Where this data comes from
21 measurements from 3 monitoring stations, 2024–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FLORIDA LAKEWATCH
21FLKWAT_WQX21 samples · 2024–2025
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.