What You'll Find in Rehoboth Bay

Rehoboth Bay is a shallow, productive estuary on Delaware's Atlantic coast, roughly 120 square miles of brackish water that holds striped bass, weakfish, summer flounder, blue crabs, and seasonal runs of bluefish and Spanish mackerel. The bay connects to the Atlantic through the Indian River Inlet and to Delaware Bay through a narrow channel, so salinity and fish populations shift with tides and seasons. Most of the bay is 4 to 8 feet deep, with deeper holes and channels that concentrate fish during low water and winter months.

Access is straightforward: public boat ramps exist at Rehoboth Beach, South Bethany, and Dewey Beach, and the bay is open to both recreational and commercial fishing year-round. The main constraint is weather—the bay is exposed to Atlantic swells and can turn rough quickly in fall and winter, making it less forgiving than enclosed bays to the north. Summer and early fall offer the most stable conditions and the widest range of species.

Key Takeaways

  • Striped bass and weakfish dominate spring and fall; summer brings flounder, bluefish, and Spanish mackerel in the deeper channels and near the inlet.
  • Public boat ramps at Rehoboth Beach, South Bethany, and Dewey Beach provide the main access points; all require Delaware fishing licenses and vessel registration.
  • The bay is shallowest in the upper reaches and deepest near the Indian River Inlet, so fish location changes with tide and season.
  • Crabbing is productive year-round in shallow flats and along channel edges, especially in summer and early fall.
  • A Delaware saltwater fishing license is required for anyone over 16 fishing from shore or boat; non-residents can purchase short-term licenses online.

Spring and Early Summer: Striped Bass and Weakfish

Striped bass move into Rehoboth Bay in April and May as water temperatures climb above 50 degrees. They concentrate in the deeper channels and near the inlet mouth, where tidal flow brings baitfish. Early morning and late afternoon are most productive; dawn often produces the largest fish. Live herring, mullet, or spot work well, as do soft plastics in white, chartreuse, or natural colors.

Weakfish (also called seatrout) arrive in May and stay through September, with peak numbers in June and July. They prefer the shallower flats and grass beds in the upper bay, especially around South Bethany and the Rehoboth Bay Wildlife Area. Small live shrimp, silversides, or 3- to 4-inch soft plastics fished on light tackle produce steady action. Weakfish are sensitive to water temperature and will move deeper or leave entirely if summer heat pushes bay temperatures above 85 degrees.

Mid-Summer: Flounder, Bluefish, and Spanish Mackerel

Summer flounder (fluke) move into the bay in June and remain through September, with peak numbers in July and August. They hold on sandy bottoms and channel edges, particularly in the deeper water near the inlet and along the main navigation channel. Drift fishing with live spot, mullet, or squid works well; vertical jigging with bucktail jigs tipped with shrimp or squid is equally effective. Flounder are less active during the heat of midday, so early morning and evening sessions often outfish midday.

Bluefish and Spanish mackerel arrive in July and August, especially after strong Atlantic swells push baitfish into the bay. Both species are aggressive and fast-moving; they respond well to small metal spoons, topwater plugs, and live mackerel or herring. Spanish mackerel are particularly abundant near the inlet mouth and in the deeper channels. Both species are best fished during slack tide or early flood, when they are most active.

Fall: Peak Striped Bass and Weakfish

September and October bring the strongest fishing of the year. Striped bass return to the bay in large numbers as water cools, and they feed aggressively in preparation for winter. The deeper channels and the inlet mouth hold the most fish, but stripers also move into shallower flats to hunt baitfish. Live herring or mullet, large soft plastics (5 to 7 inches), and topwater plugs all produce. Night fishing often outperforms day fishing in fall.

Weakfish also peak in fall, with September and early October offering excellent sight-casting opportunities on the shallow flats. Water clarity is usually best in fall, making visual hunting easier. Small soft plastics, live shrimp, and light jigs work well. By late October, both species begin to leave the bay for deeper offshore water or southern estuaries, and fishing slows noticeably.

Winter and Late Fall: Reduced Activity and Deeper Water

November through March is the slowest season. Most striped bass and weakfish have left the bay; those that remain hold in the deepest channels and near the inlet mouth. Water temperatures drop to the 40s, and fish metabolism slows. Fishing is possible but requires patience and knowledge of where fish concentrate. Live herring fished deep in the main channel is the most reliable approach.

Winter crabbing remains productive, particularly in the deeper channels where blue crabs move to escape the cold. Crab pots and hand lines work year-round, though the season is shorter and the catch smaller than in summer. Some anglers target striped bass in the inlet itself during winter, where tidal flow concentrates fish, but this requires a boat capable of handling rougher conditions.

Boat Ramps, Access, and Regulations

Three public boat ramps provide access to Rehoboth Bay. The Rehoboth Beach ramp is located at the Rehoboth Beach boardwalk area and offers parking and facilities; it is the most heavily used and can be crowded on weekends. The South Bethany ramp is quieter and provides good access to the upper bay and shallower flats. The Dewey Beach ramp is near the inlet and offers quick access to deeper water and the inlet mouth.

All Delaware boat ramps require a Delaware vessel registration and a valid Delaware saltwater fishing license. Non-residents can purchase a 7-day or annual license online through the Delaware Division of Fish and Wildlife website. Licenses are also sold at tackle shops in Rehoboth Beach and Dewey Beach. Anyone fishing from shore also needs a license; shore fishing is permitted at public beaches and designated areas.

Bag limits and size restrictions vary by species and change annually. Striped bass have a minimum size of 18 inches and a daily bag limit of two fish per person. Weakfish have a 12-inch minimum and a five-fish daily limit. Summer flounder have a 19-inch minimum and a five-fish daily limit. Bluefish and Spanish mackerel have no minimum size but daily bag limits of ten fish each. Check the current Delaware fishing regulations before you go; they are posted on the Division of Fish and Wildlife website and at all ramps.

Crabbing in Rehoboth Bay

Blue crab crabbing is productive year-round and requires no fishing license—only a crabbing license if you are keeping crabs for personal use. The shallow flats and channel edges in the upper bay hold the most crabs, particularly around South Bethany and the Rehoboth Bay Wildlife Area. Crab pots, hand lines, and dip nets all work. Summer and early fall are peak season; crabs are largest and most abundant from June through September.

Hand lines baited with chicken necks or squid are the simplest method and work well in shallow water. Crab pots are more efficient if you are targeting larger numbers. Soak pots in 4 to 8 feet of water along channel edges or in grass beds. Check pots every 30 minutes to an hour; crabs are most active during slack tide and early flood. The daily limit is one bushel per person for personal use; commercial harvest requires a separate license.

Frequently Asked Questions

What is the best time of year to fish Rehoboth Bay?

September and October offer the most consistent action and the widest range of species. Striped bass and weakfish are abundant, water temperatures are stable, and weather is usually manageable. May and June are also excellent for striped bass and weakfish, though summer heat can slow weakfish fishing by mid-July.

Do I need a boat to fish Rehoboth Bay?

A boat is not required. Shore fishing is permitted at public beaches and designated areas around Rehoboth Beach and Dewey Beach. However, a boat gives you access to deeper channels and the inlet mouth, where larger fish hold. Most productive fishing requires a boat.

What tackle and bait work best in Rehoboth Bay?

Live bait—herring, mullet, spot, and shrimp—consistently outperforms artificial lures. Soft plastics in 3- to 5-inch sizes and topwater plugs work well for striped bass and bluefish. For flounder, bucktail jigs tipped with shrimp or squid are effective. Match your tackle to the species and water depth; lighter tackle works in shallow flats, heavier tackle in deeper channels.

Can I launch my boat at any of the three ramps?

Yes, all three ramps are open to the public. Rehoboth Beach is the most developed and crowded; South Bethany and Dewey Beach are quieter alternatives. All require a Delaware vessel registration and a valid saltwater fishing license.

What should I know about tides in Rehoboth Bay?

Tides in Rehoboth Bay are semidiurnal (two highs and two lows per day) and range from 3 to 4 feet. Fish are most active during slack tide and the first two hours of flood tide. Drift fishing is easiest during slack tide; channel fishing is productive during flood. Tide tables are available online and at all boat ramps.