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Water temperature in Great Bay (NJ) in October

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Is it warm enough to swim in Great Bay in October? Average water temperature in Great Bay in October is 64.9°F and therefore is not suitable for comfortable swimming. The warmest sea in Great Bay in October is 73.2°F, and the coldest is 57°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Great Bay

Changes water temperature in Great Bay in October 2025, 2024

To get an accurate forecast for the water temperature in Great Bay for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Great Bay, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of October.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
October 1 70°F65.7°F71.8°F
October 2 68.4°F66°F72.9°F
October 3 68.5°F66.2°F72.3°F
October 4 68°F65.5°F72°F
October 5 68.9°F65.1°F71.8°F
October 6 68.9°F64.8°F71.2°F
October 7 69.1°F63.1°F71.8°F
October 8 67.6°F63.1°F71.6°F
October 9 67.8°F62.8°F71.6°F
October 10 66.7°F62.1°F72.5°F
October 11 66.4°F61.7°F73.2°F
October 12 64.4°F62.6°F71.8°F
October 13 65.7°F62.8°F71.2°F
October 14 65.3°F62.6°F70.5°F
October 15 64.9°F62.4°F70.2°F
Day 2025 2024 Min Max
October 16 63.3°F61.5°F69.8°F
October 17 63.3°F61.9°F69.1°F
October 18 62.2°F62.2°F68.2°F
October 19 60.6°F60.6°F67.3°F
October 20 60.3°F60.3°F67.1°F
October 21 60.6°F59.7°F67.3°F
October 22 61.7°F58.5°F67.5°F
October 23 63°F58.6°F67.3°F
October 24 62.4°F59.5°F66.9°F
October 25 62.2°F59.7°F66.4°F
October 26 61.9°F60.3°F66°F
October 27 60.3°F60.1°F65.5°F
October 28 59.9°F59.5°F64.9°F
October 29 59.9°F58.6°F64.6°F
October 30 60.8°F57°F64.6°F
October 31 61.7°F57.2°F63.9°F
Great Bay water temp chart in October

Average water temperature in Great Bay in October over a decade

20152016201720182019
63.5°F65.1°F67.5°F67.8°F64.6°F
20202021202220232024
64.9°F67.3°F62.4°F63.9°F64.4°F

Great Bay sea state in October

Chart comparing the height of waves in Great Bay in October over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Great Bay in October

Great Bay water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in October?

Want to know where the water temperature in October is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Temperature in neighboring cities

The nearest locations with the average water temperature in October. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Absecon65.3°F56.8°F73.2°F
Ship Bottom64.9°F57.2°F73.2°F
Surf City65.1°F57.4°F73.2°F
Ocean Township64.8°F57.4°F72.7°F
Waretown64.8°F57.4°F72.7°F
Barnegat Light65.1°F57.4°F72.9°F
Ocean City65.3°F56.7°F73.2°F
Sedge Island64.9°F57.6°F72.7°F
Island Beach State Park64.9°F57.6°F72.7°F
Forked River64.8°F57.4°F72.5°F

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Great Bay 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.

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