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Water temperature in Napeague (NY) in July

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Is it warm enough to swim in Napeague in July? Average water temperature in Napeague in July is 69.4°F and therefore suitable for comfortable swimming. The warmest sea in Napeague in July is 74.5°F, and the coldest is 63°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Napeague

Changes water temperature in Napeague in July 2025, 2024

To get an accurate forecast for the water temperature in Napeague for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Napeague, 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 167.3°F63.7°F63.3°F68.2°F
July 266.7°F63.7°F63.5°F69.1°F
July 366°F66°F64°F70.5°F
July 466.7°F66.4°F64°F70°F
July 567.8°F66.7°F63.5°F71.4°F
July 667.6°F68.7°F63°F70.7°F
July 768.4°F70.2°F64°F71.4°F
July 870.7°F69.8°F64.4°F72.1°F
July 969.8°F69.4°F64.8°F72.7°F
July 1069.8°F68.9°F65.1°F73.2°F
July 1170.2°F66.7°F65.5°F73.9°F
July 1270°F68.5°F65.7°F73.9°F
July 1372.7°F69.3°F65.5°F72.7°F
July 1470.7°F70.5°F66.2°F72.3°F
July 1571.6°F70.5°F65.7°F72.9°F
Day 2025 2024 Min Max
July 1672.3°F72.9°F66°F72.9°F
July 1772.3°F72.9°F66.7°F73°F
July 1872.3°F72.7°F67.1°F72.7°F
July 1970°F70.9°F67.3°F72.9°F
July 2070.7°F72°F67.1°F73.8°F
July 2169.8°F70°F67.5°F73.6°F
July 2269.1°F69.1°F67.6°F72.5°F
July 2370.9°F69.1°F67.5°F73.2°F
July 2470.2°F69.3°F65.5°F72.9°F
July 2570°F70.9°F66.2°F73.2°F
July 2669.3°F69.1°F66.9°F72.5°F
July 2771.4°F70.3°F67.8°F73.4°F
July 2870.7°F69.3°F67.5°F73.9°F
July 2970.5°F69.1°F67.8°F73.2°F
July 3072.1°F70.7°F68.5°F74.5°F
July 3172.5°F69.1°F68.5°F72.9°F
Napeague water temp chart in July

Average water temperature in Napeague in July over a decade

20162017201820192020
68.9°F68.9°F69.6°F69.6°F70.7°F
20212022202320242025
68.5°F69.6°F71.6°F69.3°F70°F

Napeague sea state in July

Chart comparing the height of waves in Napeague 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 Napeague in July

Napeague 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
New York City73.6°F67.8°F78.8°F
Springs69.6°F63°F75°F
Hither Hills69.1°F63°F73.9°F
Wainscott70.2°F63.1°F74.7°F
Plum Island69.1°F62.6°F75°F
Sag Harbor71.4°F63.3°F78.6°F
Peconic Bay71.4°F63.3°F78.6°F
Bridgehampton70.5°F63.5°F75.2°F
Sagaponack70.5°F63.5°F75.2°F
Noyack72°F63.5°F79.3°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 Napeague 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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