NH smallmouth hold steady on the Merrimack as pike wake up upriver

What's next

With no fresh gauge or buoy readings to work from this cycle, the clearest signal is the on-the-water testimony itself, and it points toward a stable pattern holding through the next few days rather than a sharp shift. The Hooksett and Nashua stretches of the Merrimack were reported free of water-level problems, per The Fisherman — New England Freshwater, which suggests flows are in a normal, fishable range heading into the weekend rather than blown out or unusually low — a contrast to some other New England rivers running low this time of year.

If that stability holds, expect the smallmouth bite in those NH sections to stay consistent day to day rather than swing on a big weather-driven flow change. The pike bite noted in the deeper water upriver is worth watching closely over the next week — early September is typically when pike become more predictable as they key in on baitfish pushed shallower by cooling overnight temps, so anglers targeting smallmouth on the Merrimack may want to keep a wire leader or bigger swimbait in the boat as a backup option.

For Lake Winnipesaukee, the absence of direct reports this cycle means the safest planning approach is the seasonal default: early September is usually a transition window where smallmouth and largemouth start relating more tightly to drop-offs and weed edges as the shallows cool, and lake trout begin sliding toward deeper basins ahead of fall turnover. Anglers planning a weekend trip should treat dawn and dusk as the higher-percentage windows as daytime surface temps still run warm for late summer.

Worth watching over the next several days: whether the pike activity reported upriver on the Merrimack extends into the NH stretches themselves, and whether cooler overnight air temperatures typical of this point in September start pushing baitfish — and the bass and pike following them — noticeably shallower. Anglers checking back next week should look for confirmation of a continued smallmouth bite alongside any early signs of a largemouth push toward classic fall staging areas. Until a buoy or gauge reading comes back online for this region, treat any specific water-temperature or flow number from other sources as unconfirmed and verify locally before planning a trip.

Context

For New Hampshire's Merrimack River and Lake Winnipesaukee, early September typically marks the start of the transition from late-summer patterns into fall fishing, with water temperatures beginning a gradual cooldown that pushes baitfish — and the predators keying on them — toward shallower structure and drop-offs. The smallmouth bass reports out of the Hooksett and Nashua sections of the Merrimack this week, per The Fisherman — New England Freshwater, are consistent with a normal, on-schedule pattern for the date: stable water levels and a steady smallmouth bite are typical for this stretch heading into fall rather than a sign of anything unusual.

The pike activity noted in deeper water upriver also lines up with a typical early-fall shift, as pike generally become more active and predictable as water starts to cool. There is no comparative data in this week's feeds indicating whether this year's pattern is running early, late, or exactly on the historical average — the reports simply confirm conditions are currently stable and productive.

For Lake Winnipesaukee specifically, none of this week's angler-intel sources filed a report, so there is no direct signal — from a shop, charter, or agency source — on how the lake is fishing right now or how this season compares to prior years. Anglers targeting Winnipesaukee should rely on typical early-September expectations for New Hampshire lake trout and bass fisheries and check a local, region-specific source before planning a trip, rather than assuming the Merrimack River pattern carries over to the lake.