What Maquoit Bay offers and when to fish it

Maquoit Bay is a shallow, protected estuary in Brunswick, Maine, roughly 20 miles north of Portland. The bay holds striped bass, flounder, and seasonal runs of mackerel and herring, with the most reliable fishing from May through October. Access is straightforward — you can launch from public ramps or wade from the shore — but the bay's tidal range of 9 to 10 feet means timing matters more than in deeper water. Low tide exposes mudflats and narrows the channels; high tide spreads fish across the flats and into the marsh edges.

The bay is roughly 3 miles long and 1.5 miles wide at its widest point, with depths ranging from 2 feet on the flats to 15 feet in the main channel. The bottom is mostly mud and sand, which holds baitfish and crustaceans year-round. Water temperature peaks in July and August (around 68–72°F) and drops to the 40s by November, which shifts where fish congregate and what they eat.

Key Takeaways

  • Maquoit Bay holds striped bass and flounder year-round, with peak activity from June through September when water temperatures are warmest.
  • Launch from the public ramp at Maquoit Bay Road in Brunswick, or wade from the shore along the eastern bank near the boat launch.
  • Fish the incoming tide for striped bass on the flats and around marsh edges; fish the outgoing tide in the main channel where baitfish concentrate.
  • Striped bass regulations in Maine require a saltwater fishing license and a striped bass tag; flounder has a minimum size of 12 inches and no tag requirement.
  • The bay is shallow and tidal, so plan your trip around tide tables and bring a shallow-draft boat or wade boots if you want to fish the flats.

Launch access and parking

The primary public boat launch is at the end of Maquoit Bay Road in Brunswick, just off Route 1. The ramp is maintained by the town and has a small parking area — typically 8 to 10 spaces — plus a gravel overflow lot nearby. There is no launch fee. The ramp is concrete and in good condition, though it can get crowded on summer weekends, especially Saturday mornings. Arrive early if you plan to launch between 9 a.m. and noon.

If you do not have a boat, you can wade and fish from the eastern shore near the launch. A narrow public access area runs along the bank for roughly 200 yards, and the bottom is firm sand and mud — good footing in most conditions. Wading boots are helpful because the bottom can be soft in places, and the tide moves quickly. Parking is the same lot as the boat launch.

There is no developed shore access on the western side of the bay, and private property lines the marsh. Stick to the public area near the launch or fish from a boat.

Striped bass: seasons, locations, and tactics

Striped bass move into Maquoit Bay in May as water temperatures climb and baitfish arrive. They stay through October, with the heaviest concentration from June through August. Fish in the 18- to 28-inch range are common; larger fish (30+ inches) are less frequent but present, especially in the deeper channel during summer.

On the incoming tide, striped bass spread across the flats and hunt along the marsh edges, where they chase silversides and sand eels in water as shallow as 2 feet. Fish the edges of the marsh grass and any deeper pockets or channels that cut through the flats. On the outgoing tide, bass concentrate in the main channel and around the deeper holes where baitfish are forced into tighter spaces. The channel runs roughly north-south through the center of the bay and reaches 12 to 15 feet at its deepest point.

Live baitfish — silversides, mackerel, or herring — work well, as do soft plastic shads in 3- to 4-inch sizes rigged on 1/4- to 1/2-ounce jig heads. Topwater plugs produce strikes during low-light periods (dawn, dusk, and overcast days). Cast along structure — marsh edges, channel drop-offs, and any rocks or debris — rather than open water.

Maine requires a saltwater fishing license and a striped bass tag to keep striped bass. The tag is included with the license purchase and is valid for one fish per calendar year. Minimum size is 18 inches; there is no maximum. Check the current year's regulations with the Maine Department of Marine Resources before you fish.

Flounder and other species

Summer flounder (also called fluke) arrive in June and stay through September, with peak numbers in July and August. They hold on the sandy and muddy bottom in 4 to 12 feet of water, particularly in the main channel and around the deeper pockets on the flats. Fish live baitfish or soft plastics on the bottom, and work slowly — flounder are ambush predators and do not chase fast-moving lures. Minimum size is 12 inches; there is no tag or special license requirement beyond the saltwater license.

Mackerel and herring show up in spring (April and May) and again in fall (September and October) during their migration runs. They are fast-moving schooling fish and respond well to small metal jigs, spoons, and shiny soft plastics. Mackerel have a 12-inch minimum; herring have a 7-inch minimum. Neither requires a tag.

Bluefish are occasional visitors in late summer and early fall, usually in the deeper channel. They are aggressive and will hit larger plugs and metal jigs. There is no size or tag requirement for bluefish in Maine.

Tides, weather, and seasonal timing

Maquoit Bay's 9- to 10-foot tidal range is one of its defining features. At low tide, large sections of the flats are exposed, and the navigable water shrinks to the main channel and a few deeper pockets. At high tide, water spreads across the flats and into the marsh, opening up shallow-water fishing. Plan your trip around the tide table for Brunswick or Harpswell, which are close enough to give accurate predictions for the bay.

The incoming tide (flood) is generally more productive for striped bass because fish move onto the flats to feed. The outgoing tide (ebb) concentrates fish in the channel and deeper holes. Slack water — the brief period between tides — can be slow, but it is the easiest time to navigate and position yourself for the next tide phase.

Summer weather in the bay is typically calm, but afternoon winds can kick up a chop, especially if the wind is from the south or west. Morning trips are usually calmer. Fall and spring can bring stronger winds and cooler water; dress in layers and check the forecast before launching. Winter fishing is possible but uncommon — water temperatures drop to the 30s and 40s, and fish are less active.

Regulations and licensing

All saltwater fishing in Maine requires a saltwater fishing license, available from the Maine Department of Marine Resources online or from tackle shops and sporting goods stores in the area. The license is valid for one calendar year (January through December) and costs vary depending on residency and duration (daily, 7-day, or annual options are available).

Striped bass have additional requirements: you must have a striped bass tag to keep one fish per year. The tag is included with the saltwater license. Flounder, mackerel, herring, and bluefish do not require tags, but they do have minimum sizes. Check the Maine Department of Marine Resources website or call their hotline for the current year's regulations, as size limits and seasons can change.

Catch-and-release fishing does not require a tag, so you can fish for striped bass without one as long as you release what you catch.

Nearby alternatives and similar water

If Maquoit Bay is crowded or conditions are poor, several similar bays and estuaries are within 30 minutes. Harpswell Sound, just south of Maquoit, is slightly larger and holds the same species with similar tidal characteristics. New Meadows River, near Bath, is a longer estuary with more marsh and deeper channels, good for striped bass and flounder. Casco Bay, which includes Maquoit Bay on its eastern edge, offers deeper offshore water and access to larger striped bass and bluefish, though it requires a boat with more capacity.

All three alternatives have public launch access and similar licensing requirements. If you are new to the area, Maquoit Bay is the easiest entry point because it is shallow, protected, and forgiving of navigation mistakes.

Frequently Asked Questions

Can I fish Maquoit Bay without a boat?

Yes. Wading from the shore near the boat launch works well, especially on the incoming tide when fish move onto the flats. Bring wading boots because the bottom is soft in places, and plan to fish within 200 yards of the public access area. You still need a saltwater license and a striped bass tag if you want to keep bass.

What is the best time of day to fish Maquoit Bay?

Early morning (sunrise to 9 a.m.) and late afternoon (4 p.m. to sunset) are most productive because light is low and fish are more active. Midday can be slow, especially in summer. Tide timing matters more than time of day — fish the incoming tide whenever it occurs, even if it is midday.

Do I need a shallow-draft boat to fish the flats?

A shallow-draft boat (12 feet or less, with 2 feet or less of draft) makes it easier to access the flats at high tide. A standard center-console or open boat can fish the main channel and deeper pockets without trouble. If you wade, you do not need a boat at all, though you will be limited to the area near the launch.

What should I do if I hook a large striped bass?

If you do not have a tag or have already used your one tag for the year, you must release the fish. If you have a tag, you can keep one fish per calendar year. Bring a measuring device to confirm the fish meets the 18-inch minimum before you decide whether to keep it.

Are there any hazards I should know about?

The main hazard is the tide — it moves quickly and can strand a boat on the flats if you are not paying attention. Check the tide table before you launch and know where the deep water is. Soft bottom in places means you can get stuck; if you do, wait for the tide to come back in rather than trying to power out. The bay is also shallow enough that rocks and debris can damage a propeller, so navigate slowly in unfamiliar areas.