Showers crossing the water today, with a steady S wind and no real change in pressure. Activity on Lac William should centre on sheltered bays and points. Make the night the heart of the trip. Fish tidy and take what the day gives. Falling temperatures are switching fish back on.
The bites are poor now
Night
Morning
The Mauricie end of Quebec holds Lac William. It sits at 382 metres above sea level. It runs to roughly 28 hectares — big enough to hold fish away from the bank, small enough to learn. 56 km away sits Métabetchouan, the nearest town. Chambord follows at 62 km, then Desbiens at 63 km. Near neighbours: Lac Jeanne sits 1.1 km out, 2 km out stands Lac Lamy, Lac de la Vase sits 2.2 km out, 2.5 km out stands Grand lac Bostonnais and Petit lac Georges sits 2.6 km out. No border sits close enough to matter.
Depth went unrecorded, which puts the reading back on you. The productive water is a rod length or two out, not a hundred. Read the surface for the wind lane, then fish the edge of it. Reported across Mauricie: northern pike, brook trout, walleye, yellow perch and white sucker. County records show what lives in the area; the local agency holds the water-by-water list. The shape of Lac William decides where the fish sit.
On the long-term average, July reads 17°C and January reads -16°C. The window is narrow, and fish feed hard while it lasts. Winter locks it down, and early May brings it back. Open water usually runs from early May until about mid November. Right after break-up, and again as the nights sharpen, is when to go. Lac William runs to that rhythm year in and year out.
Our records carry no access rule either way. Public data shows nothing built here, so treat the whole approach as informal. Bass water: a Texas-rigged worm near cover, a spinnerbait when you need to cover ground. Some banks are open only from a marked point. Where parking is tight, arriving early solves most problems. Lac Jeanne at 1.1 km is the sensible second choice. Treat Lac William as unsettled until someone local tells you otherwise.
34%
The bites are poor 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 |
| 3.7 | 6.3 | 6.3 | 6.4 | 7.7 | 9 | 11.4 | 13.3 | 17.1 | 18.9 | 19.9 | 22.1 | 20.3 | 19.5 | 19.5 | 17.7 | 16.7 | 15.6 | 14.6 | 13.6 | 13.7 | 13 | 13.6 | 13.7 |
| 1° | 1° | 1° | 1° | 1° | 2° | 2° | 3° | 3° | 4° | 5° | 5° | 6° | 7° | 7° | 7° | 8° | 8° | 8° | 8° | 7° | 7° | 7° | 7° |
| 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 2 |
| 101 | 101 | 101 | 101 | 101 | 101 | 101 | 101 | 101 | 101 | 101 | 101 | 101 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| 79 | 79 | 84 | 85 | 85 | 86 | 90 | 88 | 86 | 87 | 87 | 87 | 86 | 84 | 85 | 84 | 83 | 84 | 85 | 85 | 86 | 88 | 90 | 92 |
Sam
AI Fishing Assistant for Lac William
Afternoon
Evening
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time