Chasing sea-run brown trout in Maine during the winter is an exciting and challenging experience. These fish are known for their strong fighting ability, making them a prized catch for anglers willing to brave the cold. Here’s a guide to help you get started:
1. Understanding Sea-Run Brown Trout Behavior in Winter
- Migration: Sea-run brown trout (also known as "salters") move between saltwater and freshwater. During winter, they often return to coastal streams and estuaries to feed or spawn, making them more accessible.
- Water Temperature: These fish are more active when water temperatures range from 38°F to 48°F, so targeting them on warmer winter days can improve your chances.
- Feeding Habits: In colder water, sea-run browns tend to be sluggish, so they are more likely to strike at slower-moving bait or flies.
2. Best Winter Locations for Sea-Run Brown Trout in Maine
- Coastal Streams and Rivers: Focus on areas near the coast, where rivers and streams meet the ocean. Popular rivers include the Mousam, Saco, and Ogunquit.
- Estuaries and Brackish Waters: The transition zones between saltwater and freshwater are ideal. Brown trout often hold in these areas, feeding on shrimp, small baitfish, and crustaceans.
- Tidal Rivers: Look for spots where tidal flows bring in nutrients, attracting baitfish, which in turn attract sea-run trout.

3. Tackle and Gear
- Rods: A 6-8 weight fly rod or a medium-light spinning rod is ideal, depending on whether you’re fly fishing or using spinning tackle.
- Reels: Use a reel with a good drag system, as these fish can make strong runs.
- Line: For fly fishing, use a floating or intermediate sinking line. For spin fishing, a 10-12 lb test line is sufficient.
- Lures and Flies:
- Streamers: Flies like Clouser Minnows, Muddler Minnows, and Woolly Buggers are effective.
- Soft Plastics and Jigs: Small soft plastic swimbaits or jigs that imitate baitfish can work well in colder waters.
- Natural Bait: Sandworms, shrimp, or small minnows can be deadly, especially when fished slowly in estuaries.
4. Techniques
- Fly Fishing: Cast near structure or current seams, where fish may be holding. Strip the fly slowly to mimic the behavior of lethargic baitfish in cold water.
- Spin Fishing: Cast lures or soft plastics and retrieve them slowly. You can also try fishing with bait under a float to cover different water depths.
- Timing: Fish during the warmer parts of the day (midday) when trout are more active, and focus on incoming or outgoing tides, which can concentrate fish in specific areas.

5. Winter Considerations
- Stay Warm: Dress in layers and use high-quality thermal gear. Waders with good insulation are a must if you’re wading in the water.
- Safety: Be cautious of ice and slippery rocks near the water. Hypothermia is a real risk in winter, so always fish with a buddy if possible.
- Regulations: Be sure to check Maine’s fishing regulations, as certain areas may be closed to protect spawning fish or have specific tackle restrictions during the winter months.
Fishing for sea-run brown trout in Maine's coastal waters during winter can be a rewarding experience for anglers who are prepared for the conditions.