Sea Temperature

Sarnia Sea Temperature

(Today) Dec 2019

6.4°C / 43.6°F

Current weather

-6°C / 21°F
(overcast clouds)

Partly cloudy
Wind

7 mph

Humidity

62%


The measurements for the water temperature in Sarnia, Ontario are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

Monthly average max / min water temperatures

The graph below shows the range of monthly Sarnia water temperature derived from many years of historical sea surface temperature data.

Maximum and minimum monthly sea temperatures in Sarnia
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -0.1 -0.3 -0.1 0.7 4 10.2 19.2 21.6 18.2 11.5 6.1 1.5
Max °C 2.9 0.9 1.3 5.9 11 21.4 25.6 24.9 23.4 19.4 12.9 7.2
Min °F 33 31.9 32.5 35.3 42 54.8 69.1 72.2 66.8 55.8 45.7 36.9
Max °F 36 33.1 33.8 40.5 49 66 75.5 75.5 72 63.7 52.5 42.6

7 day tide forecast for Sarnia

WedThuFriSatSunMonTue
  • Low 2:14am
    (-0.05m)
  • High 7:46am
    (2.51m)
  • Low 1:59pm
    (-0.07m)
  • High 7:49pm
    (2.99m)
  • Low 3:01am
    (-0.10m)
  • High 8:26am
    (2.53m)
  • Low 2:44pm
    (-0.09m)
  • High 8:28pm
    (3.04m)
  • Low 3:46am
    (-0.13m)
  • High 9:06am
    (2.54m)
  • Low 3:30pm
    (-0.10m)
  • High 9:09pm
    (3.08m)
  • Low 4:31am
    (-0.15m)
  • High 9:48am
    (2.56m)
  • Low 4:18pm
    (-0.10m)
  • High 9:55pm
    (3.08m)
  • Low 5:18am
    (-0.15m)
  • High 10:33am
    (2.58m)
  • Low 5:09pm
    (-0.10m)
  • High 10:43pm
    (3.04m)
  • Low 6:05am
    (-0.15m)
  • High 11:21am
    (2.60m)
  • Low 6:04pm
    (-0.09m)
  • High 11:36pm
    (2.96m)
  • Low 6:55am
    (-0.15m)
  • High 12:15pm
    (2.62m)
  • Low 7:03pm
    (-0.07m)
7 day tide times for Sarnia

*These tide times are estimates based on the nearest port (Chain Bridge, D.C.) and may differ by up to half and hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.

Average December sea temperatures

  • Max: 7.2°C / 44.9°F
  • Avg: 4.3°C / 39.7°F
  • Min: 1.5°C / 34.6°F
Sarnia average sea temperature chart

These average ocean temperatures for Sarnia are calculated from several years of archived data.

Map showing location of Sarnia (42.978660, -82.404070)

Locations nearby

Variations

Whilst sea temperatures for Sarnia are as accurate as current data allows, there may be slight local and regional variations depending on conditions. Time of day and wind direction may have a temporary local effect as can water flows from neraby rivers.

Alternate names for Sarnia
Sarnia, YZR

Sarnia average sea temperature chart