Quebec sap flow forecast

The next several days for Quebec's sugaring country, read the way a sugarmaker reads them: how cold the night gets, how warm the afternoon gets, and whether that adds up to a run. The season here usually opens mid-March.

Chaudière-Appalaches, home of the Beauce, has 19.9 million of Québec's 53.6 million taps (37%), the most of any region (PPAQ, 2024).

Forecast for Saint-Georges

Updated Sep 26, 5:00 AM EDT

It's the off-season. Sap needs freezing nights, and there are none in sight. Quebec's season usually opens around March 14 — 169 days from now.

No freeze-thaw days in the forecast

Blue = below 32°F · Amber = thaw · dashed line = freezing

  1. SunSep 27
    18°high
    10°low
    No freeze, no run

    Low of 50°F — trees need a hard freeze to reload. No freeze, no run.

  2. MonSep 28
    16°high
    11°low
    No freeze, no run

    Low of 52°F — trees need a hard freeze to reload. No freeze, no run.

  3. TueSep 29
    18°high
    10°low
    No freeze, no run

    Low of 50°F — trees need a hard freeze to reload. No freeze, no run.

  4. WedSep 30
    20°high
    8°low
    No freeze, no run

    Low of 46°F — trees need a hard freeze to reload. No freeze, no run.

  5. ThuOct 1
    21°high
    11°low
    No freeze, no run

    Low of 52°F — trees need a hard freeze to reload. No freeze, no run.

  6. FriOct 2
    19°high
    14°low
    No freeze, no run

    Low of 57°F — trees need a hard freeze to reload. No freeze, no run.

Data: Environment and Climate Change Canada. Verdicts use freeze-thaw thresholds from maple field research; your woods may run a little differently.

Bas-Saint-Laurent/Gaspésie ranks second with 10.1 million taps (PPAQ, 2024) and has the latest regional start in Houle et al. 2015 (about Mar 24).

Forecast for Dégelis

Updated Sep 26, 5:00 AM EDT

It's the off-season. Sap needs freezing nights, and there are none in sight. Quebec's season usually opens around March 14 — 169 days from now.

No freeze-thaw days in the forecast

Blue = below 32°F · Amber = thaw · dashed line = freezing

  1. SunSep 27
    21°high
    5°low
    No freeze, no run

    Low of 41°F — trees need a hard freeze to reload. No freeze, no run.

  2. MonSep 28
    16°high
    6°low
    No freeze, no run

    Low of 43°F — trees need a hard freeze to reload. No freeze, no run.

  3. TueSep 29
    19°high
    9°low
    No freeze, no run

    Low of 48°F — trees need a hard freeze to reload. No freeze, no run.

  4. WedSep 30
    22°high
    4°low
    No freeze, no run

    Low of 39°F — trees need a hard freeze to reload. No freeze, no run.

  5. ThuOct 1
    19°high
    11°low
    No freeze, no run

    Low of 52°F — trees need a hard freeze to reload. No freeze, no run.

  6. FriOct 2
    17°high
    14°low
    No freeze, no run

    Low of 57°F — trees need a hard freeze to reload. No freeze, no run.

Data: Environment and Climate Change Canada. Verdicts use freeze-thaw thresholds from maple field research; your woods may run a little differently.

Estrie ranks third with 8.8 million taps (PPAQ, 2024).

Forecast for Lac-Mégantic

Updated Sep 26, 5:00 AM EDT

It's the off-season. Sap needs freezing nights, and there are none in sight. Quebec's season usually opens around March 14 — 169 days from now.

No freeze-thaw days in the forecast

Blue = below 32°F · Amber = thaw · dashed line = freezing

  1. SunSep 27
    19°high
    10°low
    No freeze, no run

    Low of 50°F — trees need a hard freeze to reload. No freeze, no run.

  2. MonSep 28
    15°high
    13°low
    No freeze, no run

    Low of 55°F — trees need a hard freeze to reload. No freeze, no run.

  3. TueSep 29
    17°high
    11°low
    No freeze, no run

    Low of 52°F — trees need a hard freeze to reload. No freeze, no run.

  4. WedSep 30
    20°high
    9°low
    No freeze, no run

    Low of 48°F — trees need a hard freeze to reload. No freeze, no run.

  5. ThuOct 1
    22°high
    10°low
    No freeze, no run

    Low of 50°F — trees need a hard freeze to reload. No freeze, no run.

  6. FriOct 2
    20°high
    14°low
    No freeze, no run

    Low of 57°F — trees need a hard freeze to reload. No freeze, no run.

Data: Environment and Climate Change Canada. Verdicts use freeze-thaw thresholds from maple field research; your woods may run a little differently.

Somewhere else in Quebec?

Your sugarbush, your forecast

Hourly temperatures for your exact spot, turned into a day-by-day sap-run outlook. US and Canada.

Planning ahead? Typical tapping dates for Quebec →

Data & method

  1. MSC GeoMet — city page weather — Environment and Climate Change Canada
  2. Sap flow in sugar maple: timing and weather drivers (Frontiers in Agronomy, 2025) — de Lima Santos et al.
  3. Maple Sugaring Tips for Beginners and Backyard Maple Sugar Producers — UNH Extension
  4. North American Maple Syrup Producers Manual, 2nd ed. (Bulletin 856) — The Ohio State University Extension

Never miss the first run

LuckySap can ping you the evening before a strong sap day, then keeps your collections, sugar readings, and boils in one season log. Free on iPhone.

Download on the App Store