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New Hampshire

Second Connecticut Lake

Second Connecticut Lake draws New Hampshire anglers to 1,102-acre largemouth water in Coos County; conditions and cover decide which water produces.

Surface
1,102acres
Primary species
Largemouth
§ 01Today on the water · Second Connecticut Lakevia Open-Meteo · 17:30 local
Air temp
68.1°F
Barometric
30.05″
→steady 24h(-0.02)
Wind
5mph
from E
Moon
Waning Gibbous
day 19.4 · 77% lit

Air conditions sampled near the lake center, not measured on the water · refreshed ~15 min

§ 03Next 3 daysvia Open-Meteo · interpretation
  1. 1
    sepTue

    Stable window

    hi 69° · lo 44°

    Anytime through the day. Quiet weather day; lean on seasonal pattern and structure.

    ── light e wind · settled

  2. 2
    sepWed

    Stable window

    hi 67° · lo 50°

    Anytime through the day. Quiet weather day; lean on seasonal pattern and structure.

    ── light se wind

  3. 3
    sepThu

    Tougher window

    hi 59° · lo 54°

    Pick the calmest hour and stay flexible. Conditions push hard today; bite likely shrinks. Plan around the calmest gap.

    ── heavy precipitation · bite likely shrinks

§ 04Field notesNew Hampshire

Where it is

Second Connecticut Lake sits in Coos County, New Hampshire, covering about 1,102 acres. The fish move with the calendar, and the productive water moves with the fish.

Seasonal pattern

Spring. Warming water pulls largemouth toward shallow, protected areas where they stage and spawn; the quickest-warming pockets lead.

Summer. Heat pushes fish off the shallows toward depth and shade; work the cooler ends of the day.

Fall. As water cools, forage and bass return toward shallower water; movement is wide, so covering water pays.

Winter. Cold water settles fish deep and slow; patience and a subtle presentation are the more dependable choice.

Key structure

  • Creek and cove mouths that funnel fish and bait
  • Weed edges and the clean lines along them
  • Inside turns where a bank changes angle
  • Submerged wood, brush, and laydown cover

The calendar decides which of these is worth time on a given day.

Forage

Forage on Second Connecticut Lake pulls largemouth between cover and the open water that schools of bait drift through.

Access

Second Connecticut Lake has public access points; conditions and water levels change, so verify locally before launching.

Regulations

Check current state and local regulations before fishing; limits and seasons can change.

§ 05Sources & field guides

Field guides

Data & references

  • Today's conditions — Open-Meteo, refreshed every ~15 min
  • Moon phase — local astronomical calculation, no external API
  • Lake area, depth, structure — Identity, surface area, coordinates and county/state are from the ProjectD canonical waterbody index (snapshot conus-20260518-v1, group gnis:00869842). Maximum depth and regulation links were not available from an acceptable source and are intentionally omitted.
  • Regulations — verify current state and local regulations before fishing

Last revised · Back to Lake Guide