World sea water temperatures

Water temperature in Port Isabel (TX) in July

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Is it warm enough to swim in Port Isabel in July? Average water temperature in Port Isabel in July is 82.8°F and therefore suitable for comfortable swimming. The warmest sea in Port Isabel in July is 86°F, and the coldest is 79.7°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Port Isabel

Changes water temperature in Port Isabel in July 2025, 2024

To get an accurate forecast for the water temperature in Port Isabel for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Port Isabel, 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 182.4°F84.9°F80.4°F84.9°F
July 282.2°F86°F80.8°F86°F
July 381.5°F85.8°F80.8°F85.8°F
July 481.9°F84.9°F81.3°F85.3°F
July 581.9°F84.7°F81.1°F84.7°F
July 682°F84.2°F81°F84.6°F
July 782.8°F84°F80.8°F84.7°F
July 883.5°F85.3°F80.2°F85.3°F
July 983.1°F85.8°F80.2°F85.8°F
July 1082.2°F84.6°F79.7°F84.6°F
July 1181.5°F84.4°F80.4°F84.4°F
July 1281°F84.9°F81°F84.9°F
July 1381.9°F85.3°F81.3°F85.3°F
July 1482.2°F85.1°F81.3°F85.1°F
July 1581.5°F85.1°F81.1°F85.1°F
Day 2025 2024 Min Max
July 1680.6°F85.6°F80.6°F85.6°F
July 1780.8°F85.3°F80.8°F85.3°F
July 1881.5°F84.9°F81.1°F84.9°F
July 1981.7°F85.3°F81.1°F85.3°F
July 2081.9°F85.6°F81.1°F85.6°F
July 2181.9°F84.6°F81.1°F84.6°F
July 2281.7°F84.4°F80.1°F84.4°F
July 2382°F84.9°F81°F84.9°F
July 2482.8°F84.9°F80.4°F84.9°F
July 2582°F84.6°F80.4°F84.6°F
July 2682.9°F84.4°F80.8°F84.6°F
July 2782.6°F84°F81.3°F84.4°F
July 2882.9°F84.6°F81.3°F84.6°F
July 2982.8°F83.8°F81.1°F84.4°F
July 3082.6°F83.7°F81.7°F84.4°F
July 3182.6°F83.3°F80.2°F84.7°F
Port Isabel water temp chart in July

Average water temperature in Port Isabel in July over a decade

20162017201820192020
82.9°F83.5°F82°F82.8°F82.6°F
20212022202320242025
83.5°F82.8°F82.8°F84.7°F82°F

Port Isabel sea state in July

Chart comparing the height of waves in Port Isabel 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 Port Isabel in July

Port Isabel 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
South Padre Island82.2°F78.6°F85.8°F
Boca Chica Beach82°F78.4°F85.6°F
Brownsville82.2°F79.2°F85.6°F
Playa Bagdad82.2°F79°F86°F
Matamoros82.2°F79°F86.2°F
Arroyo City83.8°F80.4°F87.3°F
Port Mansfield83.7°F80.1°F86.9°F
Laguna Madre84°F80.1°F87.4°F
Padre Island83.1°F77.9°F87.6°F
North Padre Island83.1°F78.1°F87.3°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 Port Isabel 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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