Lake · Canada
Lake Simcoe
Lake in Central Ontario, Canada
- Area
- 767km²
- Max depth
- 41m
- Average depth
- 13m
- Elevation
- 216m a.s.l.
- Shoreline
- 393km
- Volume
- 10.3km³
Lake Simcoe is a lake in Canada. It covers 767 km². On average it is 13 m deep, and 41 m at its deepest point. Its surface lies 216 m above sea level.
Plan your visit
Stay, sail and get there
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The water
How warm is Lake Simcoe?
The water is warmest in July, around 21 °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 123 days a year, from around 14 December to 15 April.
On the shore, afternoons reach 26 °C on average in July and -3 °C in January. The driest month is February (41 mm of rain), the wettest October (63 mm).
Average surface temperature measured by the Landsat 8 satellite between 2013 and 2021 at the point furthest from the shore (64 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 | — | -3 | -10 | 44 | 11 | 2.4 | 17 |
| February | Ice | — | -3 | -10 | 41 | 9 | 3.7 | 18 |
| March | Ice | — | 2 | -6 | 48 | 10 | 5.6 | 16 |
| April | Ice | — | 9 | 0 | 53 | 10 | 6.3 | 14 |
| May | 9 | 13 | 17 | 6 | 58 | 11 | 7.5 | 11 |
| June | 17 | 20 | 22 | 12 | 56 | 11 | 8.4 | 10 |
| July | 21 | 22 | 26 | 16 | 52 | 12 | 8.9 | 10 |
| August | 21 | 22 | 26 | 16 | 50 | 11 | 7.8 | 10 |
| September | 17 | 19 | 22 | 12 | 51 | 12 | 6.5 | 11 |
| October | 13 | 15 | 14 | 6 | 63 | 13 | 3.7 | 13 |
| November | 7 | 10 | 6 | 0 | 54 | 12 | 2.4 | 14 |
| December | Ice | — | 0 | -5 | 51 | 12 | 1.5 | 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 11 years before flowing out.
- Its catchment drains 3,696 km² of land.
- About 31 m³ of water flow out every second, on average.
- Its shoreline is 4.0 times longer than a circle of the same area: plenty of bays and inlets.
Around the shore
What's around Lake Simcoe
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- 31beaches and swimming spots
Crestwood Beach, Bunny Beach, Johnson's Beach Park, Minets Point Beach, Moose Beach and 26 more
- 24campsites
Geenva Park, Hammock Harbour, Point of Mara Resort & Trailer Park, The Jackson's Point Conference Centre, Mara Campground and 19 more
- 2boat hire and water-sport clubs
Champlain Sailing Club
- 33marinas and slipways
Barrie Yacht Club, Barrie Boat launch, Tiffin Boat Launch, Flying Bridge Marina, Everglades Marina and 28 more
- —ferry piers
- —viewpoints
- 27hotels, B&Bs and chalets
Best Western Plus, Beaverton Motel, Barr's Motel, Casino Rama Hotel, Happyland Inn and 22 more
- —fishing spots
- 133restaurants and cafés
Towns on the shore
- Barrie147,829 people
- Orillia31,166 people
- Keswick21,000 people
- Beaverton3,347 people
- Amigo Beach1,545 people
- Stoney Point1,087 people
Nearest airport with scheduled flights: Barrie-Lake Simcoe Regional Airport (YLK), 14 km in a straight line.
Car hire at YYZ airport (Toronto)Discover Cars · Affiliate linkOpenStreetMap is built by volunteers: when a number is low, it may just mean nobody has mapped it yet.
Photos
Seen by visitors
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 | -3.2 | -2.7 | 2.4 | 9.4 | 16.8 | 22.5 | 26.3 | 25.6 | 21.9 | 13.5 | 6.5 | 0.1 |
| 2020 | +2.2 | +0.2 | +2.9 | −1.0 | −1.1 | +2.9 | +3.4 | +1.4 | −0.7 | −1.0 | +2.8 | +1.0 |
| 2021 | +1.2 | −1.4 | +3.6 | +1.1 | +1.5 | +2.8 | −0.4 | +2.9 | +0.3 | +3.5 | ±0.0 | +2.4 |
| 2022 | −1.9 | +0.6 | +0.4 | −0.3 | +2.8 | +1.2 | +0.3 | +1.7 | +0.1 | +1.4 | +1.3 | +1.3 |
| 2023 | +2.6 | +2.4 | +0.7 | +2.1 | +1.6 | +1.7 | +0.6 | −0.5 | +1.6 | +2.1 | −0.1 | +3.1 |
| 2024 | +1.8 | +4.7 | +3.5 | +2.0 | +3.4 | +1.7 | +1.4 | +1.0 | +2.4 | +2.6 | +2.3 | +0.7 |
| 2025 | −0.4 | −1.4 | +2.5 | +0.7 | +0.3 | +1.9 | +3.1 | +1.2 | +1.5 | +2.6 | −0.9 | −1.1 |
+1 warmer than usual −1 cooler than usual
Nearby
More lakes nearby
United StatesAbout 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 (Q366985) · 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.
