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LakeQuality

Orange-Killarney Lake

Orange County, FloridaView mapDirections

No nutrient or algae sampling on record from Florida DEP for this lake.

Water temp
~78°F
Typical for Oct · EPA WQP
Trend
Worsening
6 years of samples
  • Limited data

Orange-Killarney Lake in Orange County, Florida has water-quality measurements published by Florida DEP, shown here as reported.

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Orange-Killarney Lake is a lake in Orange County, Florida. Overall water quality is declining over recent sampling years.

Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-04-28. Methodology: how these readings are compared.

Swimming conditions

No reading

Bacteria tested: low

Bacteria testing record
from E. coli testing · 28 samples, 8 seasons

Based on E. coli testing, Orange-Killarney Lake never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 28 samples across 8 seasons.

This is a historical summary of past testing, not a current condition — bacteria levels change quickly, especially after rain. Always check Florida’s current beach and health-department advisories before swimming.

Whether Orange-Killarney 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 Orange-Killarney Lake →

Water quality measurements for Orange-Killarney Lake

These are the measurements Florida DEP publishes for Orange-Killarney 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 Orange-Killarney Lake

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

Water Temperature

Orange-Killarney Lake typically sits around 78°F at the surface in October. Summer average is about 86°F. Usually warmest in Jul (about 87°F) and coldest in Feb (about 68°F). These are typical values by month — not a live reading.

Jan
68°
Feb
71°
Mar
78°
Apr
81°
May
85°
Jun
87°
Jul
87°
Aug
85°
Sep
78°
Oct
72°
Nov
70°
Dec

Column height runs from this lake’s coldest month (68°F) to its warmest (87°F).

Typical surface water temperature by month, from 68 field readings (2010–2025) via the EPA Water Quality Portal. See the full Orange-Killarney Lake water temperature breakdown →

Stays via Stay22

Stays near Orange-Killarney Lake

Compare lakeside cabins, hotels, and vacation rentals near Orange-Killarney Lake in Orange 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 Orange-Killarney 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 Orange-Killarney Lake

Based on 6 years of monitoring (2020–2025).

  • Water clarity

    Worsening

    6 years

  • Phosphorus

    Worsening

    +4.43 µg/L/yr6 years

See year-by-year chart →

Nearby Lakes in Orange County

Frequently asked questions about Orange-Killarney Lake

Where is Orange-Killarney Lake?

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

What is the water quality of Orange-Killarney Lake?

Orange-Killarney Lake in Orange County, Florida has water-quality measurements published by Florida DEP, shown here as reported.

Measurements on this page ↑

Is Orange-Killarney Lake safe to swim in?

Based on E. coli testing, Orange-Killarney Lake never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 28 samples across 8 seasons. That is a historical summary of past bacteria testing, not a current reading and not a swimming clearance. Bacteria levels can spike quickly after heavy rain, so whether Orange-Killarney Lake is safe to swim in today is a call for Florida's water agency and the county health department; check their current beach advisories before you swim.

Swimming on this page ↑

What is the water temperature of Orange-Killarney Lake?

Orange-Killarney Lake typically sits around 78°F at the surface in October, from 68 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.

Temp on this page ↑

Planning a trip around Canaveral?

Orange-Killarney Lake is about 40 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

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

Collected and reported by

  • FLORIDA LAKEWATCH21FLKWAT_WQX6 samples · 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.