World sea water temperatures

Water temperature in Portsmouth (NC) in July

Is it warm enough to swim in Portsmouth in July? Average water temperature in Portsmouth in July is 81.1°F and therefore suitable for comfortable swimming. The warmest sea in Portsmouth in July is 86.5°F, and the coldest is 78.1°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Portsmouth

Changes water temperature in Portsmouth in July 2025, 2024

To get an accurate forecast for the water temperature in Portsmouth for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Portsmouth, 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 179.2°F81.5°F78.1°F83.1°F
July 280.8°F79.7°F78.4°F83.3°F
July 380.6°F80.2°F78.3°F84.2°F
July 481.3°F80.2°F79°F84°F
July 582°F79.3°F78.8°F84.4°F
July 681.5°F80.4°F78.4°F84.6°F
July 781.1°F81°F79.7°F84.7°F
July 880.6°F81.7°F79.3°F82.8°F
July 980.4°F81.7°F79.7°F82.4°F
July 1080.8°F82.4°F78.8°F82.4°F
July 1180.8°F82°F79.3°F82.8°F
July 1280.8°F82.2°F79.5°F83.3°F
July 1380.8°F81°F79.2°F82.8°F
July 1482.4°F81.1°F79°F83.5°F
July 1584°F82.6°F78.8°F84°F
Day 2025 2024 Min Max
July 1682°F81.3°F78.6°F83.1°F
July 1781.7°F81.5°F78.8°F82.8°F
July 1880.6°F81°F78.6°F83.3°F
July 1982.6°F81.1°F79.7°F82.6°F
July 2080.2°F79.2°F79.2°F82.6°F
July 2181.7°F81°F79.5°F83.1°F
July 2280.8°F81.5°F78.6°F83.5°F
July 2381.9°F81°F79.2°F83.7°F
July 2481.9°F82.2°F79.3°F83.7°F
July 2583.1°F82.6°F79.2°F83.5°F
July 2683.7°F82.8°F80.1°F84.7°F
July 2784.9°F80.2°F79.9°F84.9°F
July 2886.4°F80.2°F80.2°F86.4°F
July 2985.8°F80.6°F80.1°F85.8°F
July 3086.5°F80.4°F79.9°F86.5°F
July 3186°F80.8°F78.6°F86°F
Portsmouth water temp chart in July

Average water temperature in Portsmouth in July over a decade

20162017201820192020
82.8°F81.3°F80.8°F81.1°F82°F
20212022202320242025
80.8°F80.8°F81.7°F81.1°F82.2°F

Portsmouth sea state in July

Chart comparing the height of waves in Portsmouth 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 Portsmouth in July

Portsmouth 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
Davis81.3°F78.3°F85.6°F
Buxton80.8°F75.4°F86.2°F
Engelhard82.8°F78.4°F88.2°F
Cape Hatteras80.6°F74.5°F85.1°F
Oriental82.8°F78.6°F88.5°F
Outer Banks80.4°F74.8°F84.7°F
Harkers Island81.7°F78.3°F86°F
Cape Lookout81.3°F78.4°F85.8°F
Beaufort81.9°F78.4°F86.4°F
Minnesott Beach82.6°F78.6°F89.4°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 Portsmouth 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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