Water temperature in Rondeau

This data the coastal Rondeau 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 Rondeau

Water temperature in Rondeau today is 21.5°C. Based on our historical data over a period of ten years, the warmest water in this day in the Lake Erie near Rondeau was recorded in 2017 and was 22.7°C, and the coldest was recorded in 2014 at 18.4°C. Water temperature in Rondeau is expected to drop to 19°C in the next 10 days. September average water temperature in Rondeau is 21.6°C, the minimum temperature is 17.9°C, and the maximum is 25.1°C.

The swimming season in Rondeau lasts from July to September. During those months, Rondeau water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Rondeau in winter reaches 2.9°C, in spring 5.2°C, in summer the average temperature rises to 21.2°C, and in autumn it is 16.6°C.

Rondeau water temperature now

Surf Forecast in Rondeau 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 Rondeau. 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 Rondeau. 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 Rondeau

Rondeau weather forecast

Current temperature and weather

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

0-3 h	3-6 h	6-9 h	9-12 h
20.9°C	21°C	20.6°C	19.1°C

12-15 h	15-18 h	18-21 h	21-24 h
18.9°C	20.4°C	22.3°C	20.7°C

Rondeau water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Rondeau. 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 Rondeau 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 Rondeau

The nearest beaches and cities from Rondeau 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
Wheatley	21°C	20°C		0.03 m
Mitchell's Bay	19.7°C	23°C		0.02 m
Mentor on the Lake	21.6°C	22°C		0.12 m
Headlands Beach	21.6°C	22°C		0.13 m
Algonac	19.9°C	24°C		0.02 m
Willoughby	21.6°C	22°C		0.11 m
St. Clair River (Port Lambton)	19.7°C	24°C		0.02 m
Point Pelee	21.2°C	26°C		0.04 m
Euclid	21.7°C	22°C		0.1 m
Leamington	20.8°C	26°C		0.04 m

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Rondeau Provincial Park, Rondeau Beach, Rondeau Bay

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Our report for Rondeau 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.