Onondaga Lake fishing: Green Sunfish, White Perch
Target species: Green Sunfish, White Perch
Best months: Jul, Aug, Sep for Green Sunfish
Second window: May, Jun, Sep, Oct for White Perch
Boat: 1 ramp or launch on file for this water.
Start here: Launch at Onondaga Lake Marina, Mile 167.18.
The lake
Onondaga Lake covers 2,987 acres in New York, across Onondaga County. It is a lake: 90.4% of it is 65 feet deep or less; the deepest point measured is 72.8 feet (22.2 m). Our records hold 3 species for this water.

Depth: down to 72.8 ft at the deepest measured point
Deepest measured point: 72.8 ft (22.2 m). 90.4% of the water is 65 feet or shallower. We hold 23 depth contours for this water, drawn from 270 soundings.

- 0–5 ft: 15.4% of the water
- 5–10 ft: 6.1% of the water
- 10–15 ft: 4.6% of the water
- 15–20 ft: 4.1% of the water
- 20–25 ft: 4% of the water
- 25–30 ft: 4.1% of the water
- 30–35 ft: 4.4% of the water
- 35–40 ft: 4.7% of the water
- 40–45 ft: 5.1% of the water
- 45–50 ft: 6% of the water
- 50–55 ft: 7.8% of the water
- 55–60 ft: 13.8% of the water
- 60–65 ft: 10.3% of the water
- 65–69 ft: 9.6% of the water
2 target fish, led by Green Sunfish
- Green Sunfish — Best months: Jul, Aug, Sep.
- White Perch — Best months: May, Jun, Sep, Oct.
Also recorded here: Common Carp.

Water and conditions
Water temperature averages 59°F across the year. pH averages 7.8. These readings span 2016–2019. The latest reading is from 2019, more than three years ago: read these numbers as history, not as the water today.
Monthly average water temperature: Jan 35°F · Feb 35°F · Mar 40°F · Apr 47°F · May 58°F · Jun 64°F · Jul 68°F · Aug 69°F · Sep 65°F · Oct 59°F · Nov 51°F · Dec 38°F
1 ramp or launch on this water
On this water we hold 1 boat ramp and 1 shore access point.
- Onondaga Lake Marina, Mile 167.18 — Village of Liverpool. phone +1-315-453-6721 · website onondagacountyparks.com/parks/onondaga-lake-park/boat-launchmarina
Shore access for bank fishing
- Onondaga Lake Access — New York State Department of Environmental Conservation. website dec.ny.gov
Fee and opening hours are blank for all 2 places in this list: a blank means we hold no such field, not that it is free or always open, and this list may not be complete.
Season by season
- Winter (Dec, Jan, Feb, Mar, 35–40°F) — Steady but no peak: White Perch.
- Spring (Apr, May, 47–58°F) — Biting: White Perch. Steady but no peak: Green Sunfish.
- Summer (Jun, Jul, Aug, Sep, 64–69°F) — Biting: Green Sunfish, White Perch.
- Fall (Oct, Nov, 51–59°F) — Biting: White Perch. Steady but no peak: Green Sunfish.
What is hard here
Only 1 public ramp is on file, so the launch decides where you fish. Winter water drops to 35°F, and the warm-water species stop feeding well before you do.
Where this data comes from
- NOAA ENC — NOAA Electronic Navigational Charts: soundings: class A, a survey of the bottom.
- NOAA ENC — NOAA Electronic Navigational Charts: depth contours: class A, a survey of the bottom.
- Webster, K.E., McCullough, I.M., Soranno, P.A. LAGOS-US DEPTH v1.0, EDI, doi:10.6073/pasta/64ddc4d04661d9aef4bd702dc5d8984f (CC BY 4.0); Cheruvelil et al. LAGOS-US LOCUS v1.0 (EDI) — LAGOS-US DEPTH v1.0: Lake depth for 17,675 lakes in the conterminous U.S.: class B, a depth figure measured and published by an agency, without a bottom map.
















