Stars out and no cloud tonight, with a faint SW drift with pressure climbing. Expect most activity at South River Reservoir around the dam face and creek arms. The day fishes best from morning through afternoon. Fish confidently and change only when the bites stop. Fish follow the bait in autumn, so find one to find the other.
The bites are excellent now
Night
Plymouth County, Massachusetts, is where South River Reservoir sits. The surface lies 23 feet up. Roughly 36 acres: a morning covers one end, an afternoon the other. Supplies mean a trip to Marshfield, 3 miles off. Beyond it, Duxbury at 3.2 miles and South Duxbury at 3.3 miles. Other water within reach: Reed Bog Reservoir at 0.4 miles, Cranberry Factory Pond 0.7 miles off, Petersons Saw Mill Pond at 0.8 miles, Pit Pond 1.4 miles off and North Hill Pond at 1.4 miles. The nearest boundary is a fair way off.
The records we hold are silent on depth, so plan to find it yourself. Points where the flooded channel swings in are the reliable ones. Held water runs deepest at the wall and shallows back to the inflow. Across Plymouth County, recorded fish include tessellated darter, striped bass and bluegill. Take it as the county picture rather than a promise for this water. The shape of South River Reservoir decides where the fish sit.
July is the warm end of the year here, averaging about 72°F, while January sits near 29°F. Temperature moves within a narrow band, and so does the fishing. It is not guaranteed even in a cold spell, so check yourself. The hot months push the fishing to dawn and dusk. Expect South River Reservoir to follow that timing.
No public source sets out the position on this bank. The water sits inside or beside a nature reserve, so expect extra rules. Largemouth respond to soft plastics tight to cover; go weedless where the growth is heavy. State or provincial rules still apply whatever the bank status. Access can change hands, so last year's answer may not hold. Reed Bog Reservoir, 0.4 miles away, makes the obvious fallback. Ask locally about South River Reservoir if anything is unclear.
81%
The bites are excellent now
| 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| 5.3 | 4.9 | 5.8 | 5 | 4.6 | 4.3 | 4 | 4 | 5.4 | 5 | 5.7 | 5.5 | 5.8 | 6.7 | 6 | 4.5 | 3.6 | 3.6 | 4.1 | 2.3 | 6.3 | 7.8 | 7.7 | 7.5 |
| 51° | 51° | 52° | 53° | 53° | 53° | 51° | 53° | 56° | 61° | 66° | 70° | 72° | 74° | 73° | 71° | 67° | 64° | 62° | 61° | 56° | 54° | 52° | 51° |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 30.27 | 30.26 | 30.25 | 30.23 | 30.24 | 30.24 | 30.25 | 30.26 | 30.26 | 30.26 | 30.26 | 30.25 | 30.22 | 30.2 | 30.19 | 30.19 | 30.19 | 30.19 | 30.2 | 30.21 | 30.19 | 30.21 | 30.2 | 30.19 |
| 76 | 80 | 77 | 79 | 82 | 81 | 82 | 80 | 73 | 64 | 56 | 51 | 47 | 41 | 39 | 46 | 50 | 57 | 58 | 58 | 72 | 80 | 83 | 85 |
Sam
AI Fishing Assistant for South River Reservoir
Morning
Afternoon
Evening
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time