Lake Hobbs
Hillsborough County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Lake Hobbs. Here is what has been measured.
- Eutrophic
- Limited data
Lake Hobbs in Hillsborough County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 3.3 ft visibility. Phosphorus: 14 µg/L.
Lake Hobbs is a productive, nutrient-rich eutrophic lake in Hillsborough County, Florida. Overall water quality is declining over recent sampling years. Compared to the 123 other monitored lakes in Hillsborough County, Lake Hobbs ranks #65 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-03-25. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLimited data
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 Lake Hobbs 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 Hobbs
These are the measurements Florida DEP publishes for Lake Hobbs, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 3.3 ft of visibility. Phosphorus 14 µg/L. TSI 51.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3.3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 14µg/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. | 51 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Lake Hobbs
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Lake Hobbs typically sits around 73°F at the surface in November. Summer average is about 89°F. Usually warmest in Aug (about 89°F) and coldest in Feb (about 66°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (66°F) to its warmest (89°F).
Typical surface water temperature by month, from 36 field readings (2022–2025) via the EPA Water Quality Portal. See the full Lake Hobbs water temperature breakdown →
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Stays near Lake Hobbs
Compare lakeside cabins, hotels, and vacation rentals near Lake Hobbs 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.
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Fishing Lake Hobbs
Water Quality Trend: Worsening
Based on 5 years of monitoring (2020–2024).
Water clarity
Stable5 years
Phosphorus
Worsening+0.6 µg/L/yr5 years
Nearby Lakes in Hillsborough County
Frequently asked questions about Lake Hobbs
Where is Lake Hobbs?
- Lake Hobbs 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 Lake Hobbs?
- Lake Hobbs in Hillsborough County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 3.3 ft visibility. Phosphorus: 14 µg/L.
Is Lake Hobbs 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 Hobbs?
- Lake Hobbs typically sits around 73°F at the surface in November, from 36 EPA Water Quality Portal field readings (2022–2025). That is a typical value for the month, not a live reading.
Explore Lake Hobbs across LakeQuality
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Where this data comes from
34 measurements from 2 monitoring stations, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples28 samples · 2020–2024
- Submitting organization not recorded for these samples6 samples · 2025
Monitoring station identifiers (2)
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.