World sea water temperatures

Water temperature in Murray Key (FL) in May

Is it warm enough to swim in Murray Key in May? Average water temperature in Murray Key in May is 82.4°F and therefore suitable for comfortable swimming. The warmest sea in Murray Key in May is 90.1°F, and the coldest is 77.5°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Murray Key

Changes water temperature in Murray Key in May 2025, 2024

To get an accurate forecast for the water temperature in Murray Key for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Murray Key, 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 179.2°F78.8°F77.5°F82.9°F
May 280.6°F80.1°F77.5°F84.6°F
May 380.8°F80.8°F77.7°F82.9°F
May 482.4°F80.8°F78.4°F84°F
May 581.7°F81.3°F78.3°F83.7°F
May 682.9°F80.8°F77.5°F85.3°F
May 783.5°F82°F78.4°F85.6°F
May 883.8°F82.4°F78.3°F85.3°F
May 982.8°F84.2°F78.4°F84.6°F
May 1083.5°F84.9°F79°F84.9°F
May 1182.4°F85.8°F78.8°F85.8°F
May 1283.3°F84.9°F78.8°F85.1°F
May 1383.5°F85.5°F78.4°F85.8°F
May 1484.6°F85.8°F79.2°F85.8°F
May 1585.1°F84.9°F79.3°F85.1°F
Day 2025 2024 Min Max
May 1686.5°F86.4°F80.4°F86.5°F
May 1784.9°F87.3°F79.9°F87.3°F
May 1887.1°F87.8°F79.5°F87.8°F
May 1986.7°F88.2°F78.3°F88.2°F
May 2087.6°F86.5°F78.4°F87.6°F
May 2185.3°F86.5°F78.1°F86.5°F
May 2287.8°F86.7°F78.4°F87.8°F
May 2389.4°F86.7°F79.7°F89.4°F
May 2489.6°F88.3°F79.9°F89.6°F
May 2588.7°F87.3°F79.5°F88.7°F
May 2688°F88.9°F79.2°F88.9°F
May 2787.6°F89.4°F78.6°F89.4°F
May 2887.6°F89.4°F79.2°F89.4°F
May 2987.6°F90.1°F79.7°F90.1°F
May 3088.9°F90°F79.3°F90°F
May 3187.8°F87.8°F79.2°F87.8°F
Murray Key water temp chart in May

Average water temperature in Murray Key in May over a decade

20162017201820192020
82.4°F82.2°F80.4°F83.5°F82°F
20212022202320242025
82.9°F83.8°F83.8°F85.5°F85.1°F

Murray Key sea state in May

Chart comparing the height of waves in Murray Key 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 Murray Key in May

Murray Key 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
Flamingo82.4°F77.5°F90.1°F
Islamorada81.5°F77.7°F87.3°F
Grassy Key81.5°F77.7°F86.7°F
Cocoa Plum Beach81.5°F77.5°F87.3°F
Marathon Key81.7°F77.4°F87.6°F
Sombrero Beach81.5°F77.5°F86°F
Blackwater Sound81.7°F77.4°F88.5°F
Pennekamp81.3°F77.5°F86.2°F
Manatee Bay81.5°F77.4°F88.2°F
Bahia Honda81.3°F77.5°F86.9°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 Murray Key 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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