World sea water temperatures

Water temperature in Cape May (NJ) in August

Is it warm enough to swim in Cape May in August? Average water temperature in Cape May in August is 74.5°F and therefore suitable for comfortable swimming. The warmest sea in Cape May in August is 79.5°F, and the coldest is 65.3°F. Average high air temperature in Cape May in August is 83°F, and average low temperature is 67°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Cape May

Changes water temperature in Cape May in August 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
August 179°F71.4°F70.2°F79°F
August 274.7°F73.6°F68.9°F78.1°F
August 374.3°F72.1°F69.8°F78.1°F
August 473.6°F72.3°F70.5°F79.2°F
August 574.5°F70°F69.8°F79.2°F
August 674.5°F70°F70°F78.1°F
August 774.3°F70.2°F70.2°F78.1°F
August 874.1°F70.7°F70.2°F78.1°F
August 974.8°F71.1°F67.6°F77.9°F
August 1074.7°F71.2°F70.9°F77.7°F
August 1175°F70.5°F69.6°F78.3°F
August 1276.1°F67.6°F67.6°F79.2°F
August 1375.9°F65.3°F65.3°F79.5°F
August 1477.2°F66.9°F66.9°F79.3°F
August 1576.8°F68.9°F68.9°F79.2°F
Day 2025 2024 Min Max
August 1678.1°F69.1°F69.1°F79°F
August 1777.7°F70.9°F68.9°F78.4°F
August 1877.5°F70.5°F68.9°F78.3°F
August 1977.2°F71.2°F70°F78.1°F
August 2076.1°F70.2°F70.2°F78.1°F
August 2174.8°F70.9°F70.9°F78.3°F
August 2273.4°F70.7°F70.7°F77.4°F
August 2373.4°F70.5°F70.5°F78.1°F
August 2474.1°F70.3°F70.3°F77°F
August 2574.3°F70.3°F70.3°F77.9°F
August 2674.7°F69.8°F69.8°F77.7°F
August 2774.5°F70°F70°F77.5°F
August 2874.1°F70.7°F70.7°F77.9°F
August 2974.1°F72.3°F70.9°F78.3°F
August 3073.6°F70.7°F70°F78.4°F
August 3173.4°F70.2°F70.2°F78.4°F
Cape May water temp chart in August

Average water temperature in Cape May in August over a decade

20162017201820192020
77.4°F75°F76.6°F74.3°F74.5°F
20212022202320242025
74.7°F72.3°F71.6°F70.3°F74.8°F

Cape May sea state in August

Chart comparing the height of waves in Cape May in August 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 Cape May in August

Weather and climate in Cape May in August

This data display average monthly climate indicators in Cape May in August based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

  • Average HIGH temperature83°F
  • Average LOW temperature67°F
  • Average rainfall days9 days
  • Average rainfall91mm/3.6''
  • Average daylight14h
  • Average sunshine9h
  • Average UV index8

Cape May 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 August?

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

AvrMinMax
Diamond Beach74.7°F64.8°F79.7°F
Wildwood Crest74.8°F67.3°F79.7°F
Cape May Point74.7°F67.8°F80.1°F
Lower Township75°F68.7°F80.6°F
Stone Harbor74.8°F67.1°F79.5°F
Villas76.6°F71.1°F82.6°F
Avalon74.8°F67.3°F79.3°F
Cape Henlopen75°F68.2°F79.9°F
Sea Isle City75°F68°F79.5°F
Broadkill Beach75.7°F69.6°F81.5°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 Cape May 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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