Duluth Sea Temperature in September
Looking to find out what the average sea water temperature in Duluth is for September? Find out what the lowest, highest, and average water temperatures are for Duluth over the past 10 years.
Average water temperature in Duluth for September
The average, high, and low temperatures below should help you if you can swim in the water in Duluth in September.
14.89° C
(58.8° F)
- highest: 20.11° C (68.2° F)
- lowest: 7.38° C (45.28° F)
Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a very big risk.
Water temperature range by day in September in Duluth
The chart below shows the range of low and high temperatures by day for the month of September in Duluth.
Water temperatures for September in Duluth in recent years
Water temperature in September for locations near Duluth
Data source and citation
Raw data for the calculations made to find the sea surface temperature in Duluth comes from the National Oceanic and Atmospheric Administration (NOAA) and their 1/4° daily Optimum Interpolation Sea Surface Temperature.
The water temperature data is constructed by combining observations from different platforms (satellites, ships, buoys, and Argo floats) on a regular global grid. A spatially complete sea surface temperature map is then built by interpolating to fill in gaps in the data.
If you'd like to use any of the information above in the format it is presented, please use the citation tool below.
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<a href="http://seatemperatures.net/north-america/united-states/duluth-september-temperature/">Duluth Sea Temperature in September</a>
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"Duluth Sea Temperature in September". SeaTemperatures.net. Accessed on May 7, 2024. http://seatemperatures.net/north-america/united-states/duluth-september-temperature/.
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"Duluth Sea Temperature in September". SeaTemperatures.net, http://seatemperatures.net/north-america/united-states/duluth-september-temperature/. Accessed 7 May, 2024
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Duluth Sea Temperature in September. SeaTemperatures.net. Retrieved from http://seatemperatures.net/north-america/united-states/duluth-september-temperature/.