Photo: Kiwibirdman · CC BY 3.0

Water temperature in Canada

Pacific 14.7 °C, Atlantic 15.4 °C, Fraser River 13.1 °C. The coldest spot is Kazan River, Kazan Falls at 0.3 °C. As of October 17, 2026, 392 locations from Water Survey of Canada, NOAA NDBC and ECCC.

17.6 °C

warmest spot · Cowichan Lake, Lake Cowichan

0.3 °C

coldest · Kazan River, Kazan Falls

9.2 °C

average of all spots

392

locations

Updated on October 17, 2026

coldest0.3°
average9.2°
warmest17.6°

Brr8°16°24°32 °C

coldest 0.3°
average 9.2°
warmest 17.6°

History, BrrScore and warnings for every spot – in the app.

Swim now

The warmest spot of each kind of water

Lake

17.6 °C

Cowichan Lake, Lake Cowichan

Water Survey of Canada · then Lake Ontario, Niagara-on-the-Lake (ECCC) 17.3 °C and Lake Erie, Port Stanley 17.2 °C

River

17.4 °C

Oct 10

St. Clair River, Port Lambton (ECCC)

GLOS · then Cowichan River, Lake Cowichan 17.1 °C and Thompson River, Spences Bridge 15.5 °C

Atlantic, East Scotia Slope — Photo: Kiwibirdman · CC BY 3.0

Coast

15.4 °C

Atlantic, East Scotia Slope

ECCC · then Atlantic, La Have Bank 15.4 °C and Pacific, South Nomad 14.7 °C

Good to know

Great Lakes, rivers and two oceans

Canada swims in the Pacific, the Atlantic, the Great Lakes and a vast network of rivers and inland lakes. The season is short and centred on July and August. The Pacific off British Columbia stays cool all year, while sheltered bays on the Atlantic side warm noticeably by midsummer. Lake Ontario and Lake Huron are strongly shaped by wind. Rivers like the Fraser, Thompson and Okanagan run high with cold snowmelt in early summer and become more inviting later in the season.

The backbone of the 407 sites is the Water Survey of Canada, with 325 stations on rivers and lakes. NOAA NDBC buoys cover the Great Lakes and the Pacific coast, and Environment and Climate Change Canada adds further stations. The City of Toronto supplies readings from its beaches on Lake Ontario. A few beaches without a sensor show the value of the nearest station and say so, while a small number of coastal spots rely on the Open-Meteo marine model and carry a model label.

Provincial and municipal health units sample beach water during the season and post swimming advisories when bacteria counts rise. On the Great Lakes, an offshore wind can bring cold water to the surface within a day, sending nearshore temperatures down sharply, while onshore wind can create rip currents. In rivers, current and cold water are the main risks, especially during the spring melt. Further north, even midsummer water stays fresh.

Regions

Canada, region by region

8 regions, each with today's range and its best-known spots. Tap one to open the region's list.

Pacific10.0–14.7 °C Atlantic9.1–15.4 °C Fraser River6.1–13.1 °C Lake Ontario8.7–17.3 °C Thompson River10.3–15.5 °C Salmon River9.4–10.5 °C Lake Huron13.1–15.5 °C Okanagan River13.1–15.2 °C

Pacific10.0–14.7 °C

26 coasts & beaches

Pacific, South Nomad 14.7 °C · Pacific, South Brooks 14.5 °C · Pacific, Southern Georgia Strait 14.0 °C

Atlantic9.1–15.4 °C

14 coasts & beaches

Atlantic, East Scotia Slope 15.4 °C · Atlantic, La Have Bank 15.4 °C · Atlantic, Halifax 12.4 °C

Fraser River6.1–13.1 °C

11 rivers

Fraser River, Harrison Mills 13.1 °C · Fraser River, Mission 12.5 °C · Fraser River, Steveston 12.2 °C

Lake Ontario8.7–17.3 °C

6 lakes

Lake Ontario, Niagara-on-the-Lake (ECCC) 17.3 °C · Lake Ontario, Grimsby 15.2 °C · Lake Ontario, Wolfe Island (ECCC) 15.2 °C

Thompson River10.3–15.5 °C

5 rivers

Thompson River, Spences Bridge 15.5 °C · Thompson River, Savona 14.3 °C · Thompson River, Overlanders Beach 10.3 °C

Salmon River9.4–10.5 °C

5 rivers

Salmon River, 72 Avenue, Langley 10.5 °C · Salmon River, Sayward 10.3 °C · Salmon River, Falkland 10.1 °C

Lake Huron13.1–15.5 °C

4 lakes

Lake Huron, Southern Lake Huron 15.5 °C · Lake Huron, South Georgian Bay 14.5 °C · Lake Huron, North Channel East 13.7 °C

Okanagan River13.1–15.2 °C

4 rivers

Okanagan River, Penticton 15.2 °C · Okanagan River, Okanagan Falls 14.3 °C · Okanagan River, Mcintyre Dam 13.8 °C

Right now

392 spots, 3 kinds of water

49 lakes302 rivers41 coasts & beaches

About the data

383 readings are measurements from official and open networks, above all Water Survey of Canada, NOAA NDBC and ECCC; 9 values come from models. Beyond temperature, this page carries tides for 37 coastal spots, water level or discharge at 300 gauges and wave height at 42 buoys.

Water Survey of Canada NOAA NDBC ECCCOSM-Strand (Wert der nächsten Station)GLOS SmartAtlantic

All spots