What You'll Find in the Peconic River

The Peconic River is a tidal estuary that runs roughly 40 miles through the North Fork of Long Island, connecting Riverhead to Peconic Bay. It holds striped bass year-round, with the strongest fishing from April through November. Weakfish (sea trout) move through in spring and fall, and you'll find flounder, bluefish, and blue crabs in the deeper channels and holes. The river is brackish—saltwater mixed with freshwater—which creates habitat that shifts with the tide and season.

Access is split between public and private land, and the river's character changes dramatically depending where you fish. The upper reaches near Riverhead are narrower, slower, and more freshwater-influenced. The lower river, closer to Peconic Bay, runs wider and deeper with stronger tidal flow. Most productive fishing happens on the tide change—the first two hours of incoming or outgoing water—when striped bass move to feed.

Key Takeaways

  • Striped bass are the primary target year-round, with peak fishing April through November when water temperatures stay between 50 and 75 degrees.
  • Public access points include Riverhead's Grangebel Park and several boat launches along Route 25, though parking and launch fees vary by location.
  • Tide timing matters more than time of day—fish the first two hours of incoming or outgoing tide for the best chance at striped bass.
  • New York State requires a saltwater fishing license for anyone 16 and older, and striped bass have a 19-inch minimum size with a one-fish daily limit.
  • The river is narrow enough to fish from shore in many places, but a small boat or kayak opens access to deeper holes and channels where larger bass hold.

Seasons and Water Conditions

Spring (April–May) brings the first strong run of striped bass as water temperatures climb from the 50s into the 60s. Weakfish arrive in late April and early May, and the river becomes crowded with anglers. Water levels are often high from spring runoff, which can muddy the upper river but pushes baitfish into the shallows where bass hunt.

Summer (June–August) sees water temperatures reach the 70s and low 80s. Striped bass are present but often move deeper or toward the bay during the hottest part of the day. Early morning and evening fishing is more productive than midday. Weakfish thin out by mid-June. Flounder fishing improves in July and August in the deeper holes and channels.

Fall (September–November) is the second peak season. Water cools back into the 60s and 50s, and striped bass feed aggressively before winter. Weakfish return in September and October. This is when the largest bass of the year often show up, and the river can be crowded on weekends. By November, water temperatures drop into the 40s and fishing slows.

Winter (December–March) is slow but not dead. Striped bass remain in the river, holding in the deepest holes and channels. Water temperatures drop into the 30s and 40s. Fishing is possible but requires patience and knowledge of where bass winter over. Most casual anglers stop fishing the Peconic in winter.

Public Access and Launch Points

Grangebel Park in Riverhead is the most popular public access point. It has a boat launch, parking, and restrooms. There is a launch fee (typically $10–15 per day, though fees change seasonally). The launch puts you in the upper river, which is narrower and better for smaller boats or kayaks. Parking fills quickly on weekends during spring and fall.

Calverton Fish and Game Club offers a launch for members, but public day-use access is limited and requires advance contact. Wildwood State Park near Westhampton has bay access but not direct Peconic River access. Several private marinas along Route 25 offer launches and slips, but these require membership or daily fees ranging from $15 to $30.

Shore fishing is possible at several points along Route 25 and local roads, though much of the riverbank is private. Grangebel Park has shore access. Some anglers fish from the Route 58 bridge in Riverhead, though parking is limited and the bridge itself is narrow. Always check for posted "No Trespassing" signs before walking onto private land.

Tackle, Bait, and Technique

Striped bass in the Peconic respond to live baitfish and artificial lures. Live bunker (menhaden), mullet, and eels are the most effective baits. Fish them on a simple rig: a 2/0 to 4/0 circle hook, a 12-inch leader of 20-pound fluorocarbon, and a barrel swivel tied to your main line. Use a sinker heavy enough to hold bottom in the current—typically 1 to 3 ounces depending on tide strength.

Artificial lures work well, especially during the tide change. Soft plastic shads (4 to 6 inches) rigged on a 1/4 to 1/2 ounce jig head are productive. Topwater plugs and pencil poppers draw strikes in shallow water early and late in the day. Spoons and small metal jigs work in deeper channels. Most anglers use 15 to 20-pound braided main line with a fluorocarbon leader to reduce visibility.

Weakfish prefer smaller baits and lures. Live grass shrimp or small silversides work well. Soft plastics in the 2 to 3-inch range, fished on light jig heads (1/8 to 1/4 ounce), are effective. Weakfish have soft mouths, so use circle hooks and keep tension steady—they often throw the hook if you set too hard.

Regulations and Licensing

New York State requires a saltwater fishing license for anyone 16 and older. You can purchase a license online through the New York Department of Environmental Conservation (DEC) website, at sporting goods stores, or at some bait shops. A seven-day license costs around $15; an annual license costs around $25. Licenses are required even if you fish from shore.

Striped bass have a 19-inch minimum size and a one-fish daily limit in New York waters. Weakfish have a 12-inch minimum and a five-fish daily limit. Flounder have a 12.5-inch minimum and a four-fish daily limit. These regulations change periodically, so check the DEC website before you fish. Possession limits are the same as daily limits—you cannot keep more than one striped bass per day, period.

The Peconic River is open to fishing year-round, but some areas may have seasonal closures or restrictions. Check local notices at launch points and the DEC website for any temporary rules. Crabbing is also allowed in the Peconic, but blue crabs have a 4.5-inch minimum shell width and a one-bushel daily limit.

When to Fish and Tide Timing

Tide timing is more important than clock time on the Peconic. Striped bass feed most actively during the first two hours of incoming tide and the first two hours of outgoing tide. The slack water between tides—when the current stops—is usually slow. You can find tide tables online through NOAA or through fishing apps like Tides Near Me.

The Peconic River experiences a tidal range of roughly 2 to 3 feet. High tide pushes water up into the shallows and marshes; low tide concentrates fish in the deeper channels. Many anglers plan their day around the tide schedule rather than sunrise and sunset. A tide that peaks at 10 a.m. will be more productive than a tide that peaks at 2 p.m., even though both are the same tide stage.

Spring tides (the largest tidal swings) occur around the new and full moon and create the strongest current and the most aggressive feeding. Neap tides (the smallest swings) occur around the quarter moons and produce slower, more subtle fishing. Many experienced Peconic anglers plan their trips around the spring tide cycle.

Frequently Asked Questions

Can I fish the Peconic River from shore?

Yes, but access is limited. Grangebel Park in Riverhead has shore access. Some anglers fish from the Route 58 bridge, though parking is tight. Much of the riverbank is private property, so always look for posted signs. A kayak or small boat gives you much more water to explore and better access to deeper holes where larger bass hold.

What is the best time of year to fish the Peconic?

April through May and September through November are the peak seasons. Water temperatures are in the 50s and 60s, striped bass feed aggressively, and weakfish are present. Summer is slower because water warms into the 70s and 80s, pushing bass deeper. Winter is possible but requires knowledge of where bass winter over and patience for slow fishing.

Do I need a boat to fish the Peconic?

No, but a boat or kayak opens up much more water and deeper holes. Shore fishing works at Grangebel Park and a few other spots, but you are limited to shallow water and the immediate bank. A kayak is affordable and gives you access to narrow channels and shallow flats that larger boats cannot reach.

What size striped bass can I keep?

Striped bass must be at least 19 inches long. You can keep only one per day. This is a strict regulation in New York, so measure carefully before you land the fish. Weakfish have a 12-inch minimum and a five-fish daily limit, so they are more liberal if you want to keep fish for a meal.

Where can I buy bait for the Peconic?

Several bait shops operate near the Peconic in Riverhead and along the North Fork. Grangebel Park sometimes has bait available, though supplies are not may provide. Call ahead to confirm. Live bunker, mullet, and eels are the most reliable baits. If you cannot find live bait, artificial lures work well during the tide change.