World sea water temperatures

Water temperature in Sewaren (NJ) in July

Is it warm enough to swim in Sewaren in July? Average water temperature in Sewaren in July is 74.7°F and therefore suitable for comfortable swimming. The warmest sea in Sewaren in July is 81.9°F, and the coldest is 68°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Sewaren

Changes water temperature in Sewaren in July 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
July 177.2°F72.1°F69.1°F77.2°F
July 275.4°F71.1°F68.9°F75.4°F
July 375°F70.7°F68.5°F76.6°F
July 474.3°F72.9°F68.9°F78.6°F
July 575.2°F73.4°F68.5°F78.3°F
July 676.5°F75.4°F68°F79°F
July 776.6°F76.3°F69.3°F77.9°F
July 877°F76.5°F69.8°F77.5°F
July 975.7°F76.3°F69.8°F81°F
July 1075.7°F77°F70°F80.1°F
July 1177.2°F78.3°F70.5°F79.7°F
July 1275.6°F78.1°F70.5°F78.8°F
July 1379.3°F79.7°F70.5°F79.7°F
July 1477.9°F77.2°F70.7°F78.4°F
July 1581.9°F78.6°F70.5°F81.9°F
Day 2025 2024 Min Max
July 1679.3°F79.7°F70.7°F79.7°F
July 1779°F77°F71.4°F79°F
July 1878.1°F76.8°F71.8°F78.6°F
July 1978.1°F77.2°F72°F81.9°F
July 2078.3°F76.5°F71.6°F81.3°F
July 2178.6°F77°F71.2°F80.4°F
July 2277.7°F76.8°F71.1°F80.1°F
July 2377.4°F75.9°F70.5°F81°F
July 2477.9°F75.4°F70.3°F80.1°F
July 2578.3°F74.8°F70°F79.9°F
July 2678.3°F75.9°F70.7°F80.2°F
July 2777.7°F76.3°F71.1°F81.7°F
July 2879°F76.1°F71.6°F79.9°F
July 2981.5°F78.1°F71.6°F81.5°F
July 3081°F77°F72.1°F81°F
July 3180.1°F78.3°F72.5°F80.1°F
Sewaren water temp chart in July

Average water temperature in Sewaren in July over a decade

20162017201820192020
74.5°F73.4°F75.7°F76.6°F79°F
20212022202320242025
76.5°F76.3°F76.6°F76.3°F77.7°F

Sewaren sea state in July

Chart comparing the height of waves in Sewaren in July 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 Sewaren in July

Sewaren 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 July?

Want to know where the water temperature in July 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 July. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Woodbridge74.7°F68°F82°F
Laurence Harbor74.8°F68°F82.8°F
Tottenville74.8°F68°F82.8°F
South Amboy74.8°F68°F82.8°F
Staten Island74.3°F67.8°F80.4°F
Union Beach74.7°F68°F82.2°F
Raritan Bay74.7°F68°F82.2°F
Great Kills74.3°F67.8°F80.8°F
North Middletown74.5°F67.8°F81.7°F
Keansburg74.5°F67.8°F82.2°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 Sewaren 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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