Oswego water temp

This data the coastal Oswego 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 Oswego

Water temperature in Oswego today is 69.8°F. Based on our historical data over a period of ten years, the warmest water in this day in the Lake Ontario near Oswego was recorded in 2018 and was 75.9°F, and the coldest was recorded in 2017 at 69.1°F. Water temperature in Oswego is expected to drop to 69.6°F in the next 10 days. September average water temperature in Oswego is 69.4°F, the minimum temperature is 62.8°F, and the maximum is 76.8°F.

The swimming season in Oswego lasts from July to September. During those months, Oswego water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Oswego in winter reaches 40.5°F, in spring 40.6°F, in summer the average temperature rises to 68.4°F, and in autumn it is 60.4°F.

Oswego water temperature now

Surf Forecast in Oswego 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 Oswego. 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 Oswego. Data in table shown for September 5, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Oswego

Oswego weather forecast

Current temperature and weather

Data in a table show Oswego temperature today (September 5, 2025). For more information and forecast for a few days, go to the weather forecast Oswego.

0-3 h	3-6 h	6-9 h	9-12 h
64.6°F	63.5°F	61°F	59.4°F

12-15 h	15-18 h	18-21 h	21-24 h
68.4°F	73.2°F	74.3°F	73°F

Oswego water temperature by month

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

The nearest beaches and cities from Oswego 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
New York City	71.4°F	82.4°F		1' 6"
Fair Haven	70°F	75.2°F		1' 1"
Southwick Beach	69.3°F	77°F		1' 1"
Sodus Point	70°F	75.2°F		0' 11"
Henderson Harbor	69.3°F	73.4°F		1' 2"
Pillar Point	69.3°F	73.4°F		1' 2"
Sackets Harbor	69.3°F	73.4°F		1' 2"
Dexter	68.9°F	77°F		1' 2"
Picton	68.7°F	71.6°F		1' 3"
Sandbanks	68.5°F	69.8°F		1' 6"

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Our report for Oswego 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.