
Lake · Canada
Lake of Two Mountains
Lake in Laurentides, Quebec, Canada
- Area
- 153km²
- Max depth
- 50m
- Average depth
- 9.0m
- Elevation
- 19m a.s.l.
- Shoreline
- 213km
- Volume
- 1.4km³
Lake of Two Mountains is a lake in Canada. It covers 153 km². On average it is 9.0 m deep, and 50 m at its deepest point. Its surface lies 19 m above sea level.
Plan your visit
Stay, sail and get there
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The water
How warm is Lake of Two Mountains?
The water is warmest in July, around 24 °C at the surface, and coldest in January, around 0 °C. The surface averages 20 °C or more from July to August: comfortable for most swimmers.
The lake usually freezes over for about 130 days a year, from around 29 November to 7 April.
On the shore, afternoons reach 26 °C on average in July and -6 °C in January. The driest month is February (68 mm of rain), the wettest October (114 mm).
Average surface temperature measured by the Landsat 8 satellite between 2013 and 2021 at the point furthest from the shore (141 readings). Shallow bays and beaches are often warmer.
From above
The whole lake from space
Month by month
The year at the lake, month by month
Not a forecast: these are averages over many years. Water is the 2013–2021 average; air, rain, sun and wind are the 1991–2020 average.
Water: 2013–2021 averageClimate: 1991–2020 average
| Month | Water°C | Water high°C | Air high°C | Air low°C | Rainmm | Rainy daysdays | Sunh/day | Windkm/h |
|---|---|---|---|---|---|---|---|---|
| January | Ice | — | -6 | -16 | 72 | 14 | 3.3 | 17 |
| February | Ice | — | -4 | -15 | 68 | 11 | 4.8 | 18 |
| March | Ice | — | 2 | -8 | 76 | 12 | 5.9 | 18 |
| April | 3 | 7 | 10 | 0 | 95 | 13 | 6.1 | 17 |
| May | 12 | 16 | 18 | 8 | 93 | 14 | 6.9 | 15 |
| June | 20 | 22 | 23 | 14 | 109 | 16 | 7.7 | 14 |
| July | 24 | 24 | 26 | 17 | 95 | 17 | 8.1 | 13 |
| August | 23 | 24 | 26 | 16 | 98 | 14 | 7.5 | 13 |
| September | 20 | 22 | 22 | 11 | 88 | 12 | 6.5 | 14 |
| October | 13 | 17 | 13 | 4 | 114 | 13 | 3.7 | 15 |
| November | 4 | 8 | 5 | -2 | 81 | 13 | 2.6 | 15 |
| December | Ice | — | -2 | -11 | 98 | 14 | 1.9 | 16 |
Water: LakeTEMP (Landsat 8, 2013–2021). Air, rain, sun and wind: NASA POWER, 1991–2020 averages. A rainy day has at least 1 mm of rain. Sunshine hours are derived from measured solar radiation.
Size & depth
How big, how deep
- On average, water stays in the lake for about 8 days before flowing out.
- Its catchment drains 147,300 km² of land.
- About 1,922 m³ of water flow out every second, on average.
- Its shoreline is 4.8 times longer than a circle of the same area: plenty of bays and inlets.
Around the shore
What's around Lake of Two Mountains
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- 18beaches and swimming spots
Plage Martin, Plage d'Oka, Plage du Cap Saint-Jacques, Plage de Pointe-Calumet, Plage de Ste-Marthe-sur-le-Lac and 13 more
- 10campsites
La Crête, L'Anse, Le Méandre, Le Refuge, Les Dunes and 5 more
- 2boat hire and water-sport clubs
Kayak Sylvain Bédard
- 74marinas and slipways
Club nautique d'Hudson, Club de voile Deux-Montagnes, Quai du Capitaine, Yacht Club Laval Sur Le Lac, Marina Bo-Bi-No Pointe-Calumet and 69 more
- 4ferry piers
Traverse Hudson-Oka, Traverse Oka-Hudson, Laval -Île Bizard, Île Bizard-Laval
- 13viewpoints
Calvaire d'Oka, Belvédère du Havre-aux-Tortues and 11 more
- 14hotels, B&Bs and chalets
Môtel La Bourgade, Môtel Seigneurie de Vaudreuil, Holiday Inn Express & Suites, Centre de plein air - Cap Saint-Jacques, Travelodge Wyndham Rigaud and 9 more
- 1fishing spots
Baie de Vaudreuil
- 119restaurants and cafés
Towns on the shore
- Vaudreuil-Dorion25,789 people
- L'Île-Bizard–Sainte-Geneviève19,857 people
- Deux-Montagnes17,402 people
- Sainte-Marthe-sur-le-Lac11,311 people
- Pincourt11,197 people
- L'Île-Perrot9,927 people
- Pointe-Calumet6,396 people
- Sainte-Anne-de-Bellevue5,197 people
Nearest airport with scheduled flights: Montreal / Pierre Elliott Trudeau International Airport (YUL), 20 km in a straight line.
Car hire at YUL airport (Montréal)Discover Cars · Affiliate linkOpenStreetMap is built by volunteers: when a number is low, it may just mean nobody has mapped it yet.
Recent years
How each month compared
Afternoon high on the shore. The first row is the reference, the 1991–2020 average in °C; the years below show the difference from it: warmer in orange, cooler in blue.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1991–2020 average | -6.0 | -4.1 | 1.5 | 10.5 | 18.5 | 23.3 | 26.5 | 26.2 | 22.4 | 13.3 | 5.2 | -2.4 |
| 2020 | +2.1 | +1.4 | +2.3 | −1.8 | −0.9 | +1.8 | +3.9 | +0.2 | −1.6 | −0.4 | +2.4 | +2.8 |
| 2021 | +0.9 | −0.7 | +3.4 | +2.1 | +0.8 | +3.2 | −0.3 | +3.4 | +0.7 | +3.3 | +0.5 | +2.0 |
| 2022 | −2.3 | +1.5 | +1.4 | −0.2 | +2.4 | −0.3 | +0.9 | +1.2 | −1.1 | +2.3 | +2.3 | +2.4 |
| 2023 | +3.3 | +1.9 | +1.4 | +1.6 | +0.3 | −0.1 | +0.3 | −1.2 | +1.7 | +3.0 | −1.1 | +2.5 |
| 2024 | +2.4 | +3.7 | +4.3 | +1.5 | +2.1 | +1.7 | +2.1 | −0.2 | +1.3 | +2.4 | +2.7 | +0.3 |
| 2025 | +0.1 | −1.0 | +3.3 | +0.8 | +0.3 | +2.3 | +3.3 | +1.7 | +1.4 | +2.8 | −1.8 | −1.8 |
+1 warmer than usual −1 cooler than usual
Nearby
More lakes nearby
About these numbers
| Outline, area, depth, volume | HydroLAKES v1.0 (Messager et al. 2016) · CC BY 4.0 |
|---|---|
| Water temperature and ice | LakeTEMP v1 (Korver et al. 2024), Landsat 8 2013–2021 · CC BY 4.0 |
| Air, rain, sun, wind | NASA POWER, 1991–2020 · public domain |
| Names and description | Wikidata (Q1552829) · CC0 |
| Around the shore | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
Every figure is an average or a count from a public dataset. Licences and methods: data sources.

