World sea water temperatures

Water temperature in Katama Beach (MA) in August

Is it warm enough to swim in Katama Beach in August? Average water temperature in Katama Beach in August is 69.8°F and therefore suitable for comfortable swimming. The warmest sea in Katama Beach in August is 75.4°F, and the coldest is 64.8°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Katama Beach

Changes water temperature in Katama Beach in August 2025, 2024

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

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
August 169.6°F68.2°F67.1°F71.8°F
August 267.3°F69.8°F67.3°F72.9°F
August 368°F70.9°F67.6°F72.7°F
August 468.2°F70.2°F67.8°F73.2°F
August 568.2°F70°F68.2°F73.6°F
August 669.1°F71.4°F68.5°F74.1°F
August 766.6°F68°F66.6°F73.9°F
August 866.9°F68.4°F66.9°F74.5°F
August 967.1°F70°F67.1°F75.4°F
August 1066.6°F69.6°F66.6°F74.8°F
August 1166.9°F69.1°F66.9°F75°F
August 1268.2°F69.1°F68.2°F74.5°F
August 1367.6°F68.4°F67.6°F73.6°F
August 1469.8°F69.3°F67.8°F74.5°F
August 1568.5°F69.6°F68.2°F74.1°F
Day 2025 2024 Min Max
August 1668.2°F69.8°F67.8°F74.3°F
August 1769.1°F69.6°F66.6°F74.1°F
August 1868.5°F67.5°F65.3°F75.2°F
August 1967.1°F68.7°F64.8°F75°F
August 2067.8°F67.3°F65.5°F73.4°F
August 2167.5°F67.1°F65.8°F72.7°F
August 2266°F66.4°F65.5°F72.1°F
August 2367.1°F67.3°F65.3°F72.3°F
August 2467.6°F68°F65.5°F72.1°F
August 2567.6°F68.7°F67.1°F72°F
August 2667.6°F68.4°F65.7°F73°F
August 2768°F68.4°F66.4°F73.4°F
August 2866.9°F68.2°F66.7°F72.5°F
August 2967.3°F67.6°F66.2°F72.3°F
August 3067.8°F67.1°F66.4°F72.1°F
August 3167.5°F66.6°F65.8°F71.2°F
Katama Beach water temp chart in August

Average water temperature in Katama Beach in August over a decade

20162017201820192020
71.8°F68.2°F72.9°F69.1°F70.5°F
20212022202320242025
71.2°F71.1°F68.5°F68.7°F67.8°F

Katama Beach sea state in August

Chart comparing the height of waves in Katama Beach in August 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 Katama Beach in August

Katama Beach 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 August?

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

AvrMinMax
West Tisbury69.8°F65.1°F75°F
Long Point Beach69.8°F65.1°F75°F
Tisbury70.9°F65.1°F76.5°F
Oak Bluffs71.6°F65.3°F76.8°F
Chilmark69.6°F65.3°F74.7°F
South Cape Beach72.5°F65.3°F77.5°F
New Seabury72.5°F65.1°F77.5°F
East Falmouth72.3°F65.3°F77.5°F
Menauhant Beach72.3°F65.3°F77.5°F
Menemsha69.6°F65.3°F74.7°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 Katama Beach 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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