World sea water temperatures

Water temperature in Grand Isle (LA) in October

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Is it warm enough to swim in Grand Isle in October? Average water temperature in Grand Isle in October is 78.3°F and therefore suitable for comfortable swimming. The warmest sea in Grand Isle in October is 84.7°F, and the coldest is 71.8°F. Average high air temperature in Grand Isle in October is 80°F, and average low temperature is 64°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Grand Isle

Changes water temperature in Grand Isle in October 2024, 2023

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

You can choose any other years:

Year 1:   Year 2:


Day 2024 2023 Min Max
October 182.9°F83.5°F77.9°F84°F
October 283.3°F82.8°F77.4°F84.6°F
October 383.1°F82.2°F77°F84.4°F
October 482.8°F82.4°F77.2°F84.4°F
October 582.6°F81.3°F76.3°F84.7°F
October 681.9°F81.1°F76.3°F84.2°F
October 780.8°F81.7°F76.5°F83.8°F
October 880.2°F81°F76.3°F83.5°F
October 979.2°F81°F76.5°F83.3°F
October 1079°F80.4°F76.5°F82.8°F
October 1178.8°F79.9°F76.6°F82.6°F
October 1278.8°F79.5°F76.5°F81.9°F
October 1379.2°F77.2°F76.6°F82.6°F
October 1480.1°F76.5°F76.5°F82.2°F
October 1580.6°F76.1°F76.1°F81.7°F
Day 2024 2023 Min Max
October 1679.7°F74.3°F74.3°F81.7°F
October 1778.3°F72.9°F72.9°F81.7°F
October 1877.4°F72.1°F72.1°F81.3°F
October 1974.8°F72.9°F72.9°F81.1°F
October 2074.3°F74.3°F74.3°F81°F
October 2174.5°F75.4°F73°F79.7°F
October 2275°F75.4°F73.2°F79.9°F
October 2375.2°F77.7°F73.9°F80.1°F
October 2476.1°F77°F74.1°F79.9°F
October 2577°F77.2°F73°F79.5°F
October 2677.5°F77°F73°F79.2°F
October 2777.5°F78.3°F71.8°F79.7°F
October 2877.9°F77.9°F72.3°F79°F
October 2977.5°F77.9°F72.7°F78.3°F
October 3077.5°F78.4°F72°F78.4°F
October 3177.5°F76.5°F72.1°F77.5°F
Grand Isle water temp chart in October

Average water temperature in Grand Isle in October over a decade

20152016201720182019
77°F79.3°F79.7°F80.8°F80.1°F
20202021202220232024
77.5°F79.9°F76.1°F78.1°F78.8°F

Grand Isle sea state in October

Chart comparing the height of waves in Grand Isle in October 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 Grand Isle in October

Weather and climate in Grand Isle in October

This data display average monthly climate indicators in Grand Isle in October 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 temperature80°F
  • Average LOW temperature64°F
  • Average rainfall109mm/4.3''

Grand Isle 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 October?

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

AvrMinMax
Buras78.1°F71.1°F84°F
Cocodrie77.9°F67.8°F85.3°F
Boothville77.2°F68.9°F83.5°F
Shell Beach76.3°F66.7°F85.5°F
Venice77.4°F69.6°F83.5°F
Mandeville75.6°F65.8°F85.5°F
Chandeleur Islands78.4°F72.5°F84.9°F
Waveland75.7°F66.9°F85.6°F
Bay Saint Louis75.7°F66.6°F85.8°F
Gulfport75.9°F67.6°F85.5°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 Grand Isle 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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