Peconic River Fishing Guides
The tidal head of Long Island’s longest river, where fresh water meets the Peconic Bay system at Riverhead and stripers, weakfish and flounder work the channel on the tide.
Guides on the Peconic River
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About the Peconic River
The Peconic is the longest river on Long Island, and the stretch that matters to anglers is the lower few miles at Riverhead where it stops being a river and becomes the head of the Peconic Bay estuary. The transition is gradual and genuinely estuarine: fresh water comes down out of the pine barrens, salt pushes up on the flood, and the result is a long brackish gradient that moves back and forth with the tide and the season. The surrounding country is the narrow neck of land between the north and south forks, and the river mouth opens into Flanders Bay and then the much larger Great Peconic Bay beyond.
The fishing follows the tide more than the calendar. Striped bass are the main draw, running up into the brackish reach from spring onward and holding on the channel edges and around the bridge structure where the current concentrates bait. Weakfish have returned to the Peconic system in better numbers in recent years and are one of the real attractions here, and summer flounder work the sandy flats downstream while winter flounder use the deeper holes in the colder months. White perch and American eel live in the brackish middle ground year round, and blue crabs are abundant enough through the summer to be a fishery of their own. Bluefish push in behind the bait when the water warms. Small boats, kayaks and the public shoreline at Riverhead all work.
The gauge at the County Highway 105 crossing reports water temperature, which on an estuary is the single most useful number available, and it does not report discharge or stage. That suits the water: the fishing here is a temperature-and-tide story rather than a flow story. A spring warming trend through the fifties is what pulls the first stripers up, the summer plateau is when the weakfish and fluke fishing is at its best, and the autumn cooling is what triggers the run back out toward the bays. Read the temperature trace, then plan around the stage of the tide.
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Access
Riverhead - the town at the tidal head, with public shoreline, launches and the gauge crossing.
County Highway 105 - the gauge bridge and the structure that concentrates fish on the tide.
Flanders Bay - the first open water downstream and the obvious extension of a Peconic trip.
Great Peconic Bay - the large bay beyond, with the fluke and striper fishing the system is known for.
South Jamesport - the nearby north shore community with marina access to the bay.
Hampton Bays - the south fork base for guides and charter boats working the Peconic system.
Greenport - the north fork port, with tackle, charters and access to the eastern bays.
Seasons
Spring: striped bass push up into the brackish reach as the water warms through the fifties, and winter flounder are still available early.
Summer: the strongest and most varied fishing of the year, with weakfish, fluke and stripers all in play and blue crabs abundant.
Fall: cooling water pulls fish back down toward the bays, and the autumn striper and bluefish fishing on the channel edges can be excellent.
Winter: quiet and cold, with winter flounder in the deeper holes the main option and most of the system left alone.
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Questions
What species can you catch on the Peconic River?
Anglers target American Eel, Blue Crab, Bluefish, Striped Bass, Summer Flounder, Weakfish, White Perch, Winter Flounder on the Peconic River in New York.
Where can you access the Peconic River?
Riverhead - the town at the tidal head, with public shoreline, launches and the gauge crossing. County Highway 105 - the gauge bridge and the structure that concentrates fish on the tide. Flanders Bay - the first open water downstream and the obvious extension of a Peconic trip. Great Peconic Bay - the large bay beyond, with the fluke and striper fishing the system is known for. South Jamesport - the nearby north shore community with marina access to the bay. Hampton Bays - the south fork base for guides and charter boats working the Peconic system. Greenport - the north fork port, with tackle...
When is the best time to fish the Peconic River?
Spring: striped bass push up into the brackish reach as the water warms through the fifties, and winter flounder are still available early. Summer: the strongest and most varied fishing of the year, with weakfish, fluke and stripers all in play and blue crabs abundant. Fall: cooling water pulls fish back down toward the bays, and the autumn striper and bluefish fishing on the channel edges can be excellent. Winter: quiet and cold, with winter flounder in the deeper holes the main option and most of the system left alone.
Where are the fishing regulations for the Peconic River?
Regulations change by season and section. Read the current rules on the New York agency site: https://dec.ny.gov/things-to-do/freshwater-fishing/regulations