Stripers Flooding the NH Coast in Force as Late-May Migration Peaks

What's Biting

What's Next

The full moon window is now open, and it may be the best timing of the week for NH coast anglers. Saltwater Edge Blog (RI) flagged this second full moon of May as likely to produce 'insane bite windows' tied to the cold front arriving with it. Expect amplified tidal flows and heightened feeding activity, particularly around dawn and dusk on either side of peak tide. Light winds as of this morning should keep conditions manageable through the weekend.

The striper migration continues to push north. As of May 29, OTW Saltwater reports big bass feeding heavily on bunker, squid, and river herring as they advance up the coast. The Fisherman (Northeast) notes 40-pounders already knocking on the door in Boston Harbor, and fish approaching the 50-pound barrier farther south suggest another strong wave of quality stripers is building for the NH coast. The Merrimack herring run remains active, per The Fisherman — South Shore MA to ME, which should anchor fish in the estuary through at least the next week.

Mackerel presence is an increasingly important piece of the puzzle. Belsan's Bait and Tackle and Beauport Fishing Adventures, both reported through The Fisherman — South Shore MA to ME, confirm that large mackerel have moved in alongside sea herring. If you can locate a bait school along the NH front beaches or inside the river mouth, bass will be nearby. Fast-moving plugs, paddletails on leadheads, and bucktails are all accounting for fish per correspondent reports in The Fisherman — South Shore MA to ME.

For offshore anglers, Capt. Tom at Beauport Fishing Adventures indicated he would be running haddock trips this weekend, weather permitting. The 48°F water at NOAA buoy 44007 is well within the productive range for Gulf of Maine groundfish. If you are looking for an alternative to the striper scene, an offshore haddock run is worth considering while conditions hold.

Timing windows to plan around: reporting in The Fisherman — New England Freshwater pinpoints the Merrimack mouth as most productive on either side of low tide, with paddletails on leadheads leading the charge and SP Minnows and bucktails also drawing bites. Surf casters throwing clams have been picking off slot and over-slot fish on the front beaches at dawn. With the full moon amplifying feeding windows into the dark hours as well, late evening and early morning outings through the weekend deserve a serious look.

Context

The 48°F water reading at NOAA buoy 44007 is notably cold for late May in the Gulf of Maine. Typical late-May surface temperatures along the NH coast run in the low to mid 50s by this point, with warmer years pushing closer to 56 to 58°F. The Gulf of Maine's spring warming is historically slow and variable, and cold fronts can suppress surface temps well into June. Anglers keying on a specific temperature threshold for targeting certain species should expect conditions here to lag southern New England by roughly two to three weeks.

Despite the cool water, the striper showing this spring has been exceptional by recent standards. The Fisherman (Northeast) describes a spring push of 20- to 30-pound fish 'the likes of which we haven't seen in many years,' and reports of fish approaching the 50-pound barrier in southern New England waters are a benchmark rarely reached in a single season. For the NH coast, late May is typically the arrival phase of the migration rather than the peak. Real density usually builds through June once pogies establish firmly in Gulf of Maine waters, but with mackerel and herring already pulling quality fish into local estuaries and the Merrimack, the inshore season is tracking ahead of its usual pace.

The herring run as a striper attractor in the Merrimack is squarely on historical schedule. Its being 'still very much on,' per The Fisherman — South Shore MA to ME, is consistent with typical late-May timing for the region. Mackerel as a bonus forage species appears some years and not others; their confirmed presence alongside herring this season gives NH coast anglers an unusual depth of options for targeting large bass inshore. With the full moon and an active migration arriving together, this weekend sits in one of the better late-May windows the NH coast has seen in recent memory.