Water temperature in Niagara Falls

This data the coastal Niagara Falls 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 Niagara Falls

Water temperature in Niagara Falls today is 18°C. Based on our historical data over a period of ten years, the warmest water in this day in the Lake Ontario near Niagara Falls was recorded in 2016 and was 24.2°C, and the coldest was recorded in 2024 at 19.4°C. Water temperature in Niagara Falls is expected to rise to 20.5°C in the next 10 days. September average water temperature in Niagara Falls is 21.4°C, the minimum temperature is 17.6°C, and the maximum is 24.9°C.

The swimming season in Niagara Falls lasts from July to September. During those months, Niagara Falls water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Niagara Falls in winter reaches 2.6°C, in spring 4.8°C, in summer the average temperature rises to 21°C, and in autumn it is 15.9°C.

Niagara Falls water temperature now

Surf Forecast in Niagara Falls 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 Niagara Falls. 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 Niagara Falls. Data in table shown for 13 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Niagara Falls

Niagara Falls weather forecast

Current temperature and weather

Data in a table show Niagara Falls temperature today (13 September 2025). For more information and forecast for a few days, go to the weather forecast Niagara Falls.

0-3 h	3-6 h	6-9 h	9-12 h
16.8°C	15.7°C	15°C	18.3°C

12-15 h	15-18 h	18-21 h	21-24 h
24.7°C	24.7°C	23.6°C	20°C

Niagara Falls water temperature by month

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

The nearest beaches and cities from Niagara Falls 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
Thorold	20.1°C	25°C		0.07 m
Port Dalhousie	20.1°C	25°C		0.07 m
St. Catharines	19.9°C	25°C		0.07 m
Nickel Beach	20.2°C	24°C		0.08 m
Crystal Beach	20.4°C	23°C		0.06 m
Fort Erie	20.4°C	23°C		0.06 m
Sherkston	20.5°C	24°C		0.07 m
Wilson	20.1°C	23°C		0.06 m
Port Colborne	20.4°C	24°C		0.08 m
Goat Island	20.2°C	21°C		0.05 m

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Our report for Niagara Falls 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.