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Water temperature in Bay Saint Louis (MS) in May

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Is it warm enough to swim in Bay Saint Louis in May? Average water temperature in Bay Saint Louis in May is 78.1°F and therefore suitable for comfortable swimming. The warmest sea in Bay Saint Louis in May is 84.6°F, and the coldest is 69.6°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Bay Saint Louis

Changes water temperature in Bay Saint Louis in May 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
May 180.2°F76.1°F71.8°F80.2°F
May 279.7°F77°F71.4°F79.7°F
May 378.3°F77.7°F71.6°F78.3°F
May 477.5°F77.5°F70.5°F79.5°F
May 577.7°F78.3°F70.2°F79.9°F
May 677.7°F79.7°F69.6°F79.9°F
May 775.6°F79°F70.2°F79.7°F
May 876.1°F80.2°F71.2°F80.2°F
May 976.5°F79.3°F72.1°F80.2°F
May 1073.9°F81°F72.7°F81°F
May 1175.6°F79.9°F72.5°F80.8°F
May 1276.1°F79.9°F72.5°F80.6°F
May 1375.9°F79.7°F72.7°F81°F
May 1475.6°F77.5°F73°F81.5°F
May 1577.5°F77.9°F73°F81.7°F
Day 2025 2024 Min Max
May 1679°F77.7°F74.5°F81.7°F
May 1779.9°F78.3°F74.7°F82.4°F
May 1880.4°F79°F74.8°F82.8°F
May 1980.4°F79.9°F75°F83.5°F
May 2081.3°F81.3°F74.5°F83.5°F
May 2181.1°F81.1°F74.3°F83.1°F
May 2281.3°F80.4°F74.3°F82.9°F
May 2381°F80.6°F74.7°F83.7°F
May 2481.7°F82°F75.2°F83.8°F
May 2583.3°F82.4°F75.7°F84°F
May 2683.5°F82.2°F76.1°F83.8°F
May 2783.7°F82.9°F76.6°F84.4°F
May 2883.7°F83.3°F78.3°F83.8°F
May 2983.3°F83.5°F78.3°F84°F
May 3082.8°F83.5°F78.3°F83.8°F
May 3182.8°F82.4°F78.4°F84.6°F
Bay Saint Louis water temp chart in May

Average water temperature in Bay Saint Louis in May over a decade

20162017201820192020
77.5°F76.8°F80.4°F79.2°F76.8°F
20212022202320242025
76.1°F80.8°F78.6°F80.1°F79.5°F

Bay Saint Louis sea state in May

Chart comparing the height of waves in Bay Saint Louis in May 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 Bay Saint Louis in May

Bay Saint Louis 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 May?

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

AvrMinMax
Waveland78.1°F69.6°F84.4°F
Gulfport78.3°F69.8°F84.6°F
Diberville78.1°F70.2°F85.1°F
Gulf Hills78.1°F70.2°F85.1°F
Saint Martin78.1°F70.2°F85.1°F
Ocean Springs78.3°F70.2°F85.5°F
Shell Beach78.6°F70°F84.7°F
Gautier78.1°F69.4°F85.1°F
Pascagoula78.1°F70.3°F85.3°F
Chandeleur Islands78.3°F70.3°F84.7°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 Bay Saint Louis 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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