Overview

Lac Saint-François is a lake located in the Estrie/Beauce region, near Lambton, at 287 meters altitude. Not to be confused with the Lac Saint-François on the St. Lawrence River. This mountain lake offers a preserved natural setting for kitesurfing.

The lake stretches approximately 12 km on a northeast-southwest axis, with a width of 1 to 2 km. The lake corridor effectively channels the dominant southwest winds, offering regular sessions in summer. Typical Appalachian landscapes with mixed forests. Season from June to September.

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Spot forecast for Lac Saint-François

Sunrise 07:08 · Sunset 17:50

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< 7 kn7–12 kn13–20 kn21–30 kn31–40 kn41+ kn Gusts Your minimum: 7 kn

Forecasts provided by Open-Meteo

Lac Saint-François: when to go?

Rideable days and hours computed for a minimum wind of 7 knots · log in to set your own (foil, twin-tip…)

Season · peak

128h

in January · 17 rideable days

Wind is uneven from month to month: the best months are January, June and April, at 15 rideable days and 8 °C. The low point is August, at 7 days.

Rideable days per month

Wind strength when it is rideable

7-12 knots · 85%13-20 knots · 15%21-30 knots · under 1%

When the spot works, wind sits mostly between 7 and 12 knots — 85% of rideable hours. Big-kite territory. The coldest month is January, at -6 °C. The wettest month is June, with 144 mm.

Monthly averages: Lac Saint-François

Monthly averages — Lac Saint-François — averaged over 2 years of records — Weather data by Open-Meteo.com — How it is calculated
Month	Rideable days	Usable wind	Temperature	Rain
January	17.0	128 h	-6 °C	38 mm
February	11.0	83 h	-4 °C	44 mm
March	13.0	90 h	3 °C	68 mm
April	13.5	104 h	9 °C	72 mm
May	7.5	60 h	18 °C	46 mm
June	14.0	95 h	22 °C	144 mm
July	12.5	84 h	25 °C	121 mm
August	7.0	46 h	23 °C	113 mm
September	8.5	54 h	20 °C	21 mm
October	11.5	72 h	13 °C	46 mm
November	13.5	100 h	4 °C	61 mm
December	12.5	95 h	-4 °C	64 mm

Photo gallery of Lac Saint-François

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Technical details of Lac Saint-François spot

The spot works with winds from NNE, NE, ENE, SSW, SW, WSW.

Rideable Not rideable

Spot opening date · Required level

Spot opening date: Open all year round
Required level: Intermediate

On the water

Clear fresh water, swimming quality. Summer temperature of 19-22°C. Sandy to rocky bottom. The elongated NE-SW lake generates good fetch with southwest winds. Moderate chop. Spacious sailing area in the center of the lake.

Hazards

Mountain lake — frequent and sudden summer thunderstorms. Motorboats and fishing boats, especially on weekends. Rocky shallows near shorelines. Wind can accelerate in the lake corridor. Cold water early in the season.

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THETFORD MINES RCS14.4 kmsource Environment Canada

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Additional stations

YS1AHL-3120.2 km

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source CWOP / APRS-IS

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Webcams near Lac Saint-François

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Nearby spots

All spots: Québec

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Lac Saint-François kitesurf and windsurf spot