Water temperature in Cobourg

This data the coastal Cobourg water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current water temperature in Cobourg

Water temperature in Cobourg today is 18.2°C. Based on our historical data over a period of ten years, the warmest water in this day in the Lake Ontario near Cobourg was recorded in 2017 and was 22.2°C, and the coldest was recorded in 2012 at 16.3°C. Water temperature in Cobourg is expected to drop to 17°C in the next 10 days. September average water temperature in Cobourg is 19.9°C, the minimum temperature is 14.7°C, and the maximum is 23.8°C.

The swimming season in Cobourg lasts from July to September. During those months, Cobourg water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Cobourg in winter reaches 3.4°C, in spring 4.3°C, in summer the average temperature rises to 18.6°C, and in autumn it is 14.4°C.

Cobourg water temperature now

Surf Forecast in Cobourg for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Cobourg. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Cobourg. Data in table shown for 26 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Cobourg

Cobourg weather forecast

Current temperature and weather

Data in a table show Cobourg temperature today (26 September 2025). For more information and forecast for a few days, go to the weather forecast Cobourg.

0-3 h	3-6 h	6-9 h	9-12 h
16.1°C	15.2°C	15°C	15.8°C

12-15 h	15-18 h	18-21 h	21-24 h
16.6°C	19.3°C	18.9°C	16°C

Cobourg water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Cobourg. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Cobourg on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Cobourg

The nearest beaches and cities from Cobourg with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Port Hope	18°C	19°C		0.23 m
Brighton	18.6°C	20°C		0.35 m
Port Darlington	18.1°C	20°C		0.21 m
Bowmanville	18.1°C	20°C		0.21 m
North Beach	18.9°C	20°C		0.36 m
Hamlin Beach	18.9°C	20°C		0.31 m
Oshawa	18°C	22°C		0.14 m
Prince Edward	18.7°C	20°C		0.42 m
Port Whitby	18.1°C	21°C		0.17 m
Ajax	18.3°C	21°C		0.14 m

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Cobourg Beach

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Our report for Cobourg is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.