World sea water temperatures

Grays Beach water temp

This data the coastal Grays Beach sea water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current sea temperature in Grays Beach

Water temperature in Grays Beach today is 69.1°F. Based on our historical data over a period of ten years, the warmest water in this day in the Cape Cod Bay near Grays Beach was recorded in 2018 and was 73.6°F, and the coldest was recorded in 2017 at 63.9°F. Sea water temperature in Grays Beach is expected to drop to 67.1°F in the next 10 days. September average water temperature in Grays Beach is 66.6°F, the minimum temperature is 59.9°F, and the maximum is 73.8°F.

The swimming season in Grays Beach lasts from July to September. During those months, Grays Beach water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Grays Beach in winter reaches 40.5°F, in spring 45.3°F, in summer the average temperature rises to 66.9°F, and in autumn it is 59.2°F.

Grays Beach water temperature now


September 5, 2025
today temp
69.1°F
September 4, 2025
yesterday temp
68.7°F


The sea salinity in Grays Beach is 31.11‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Grays Beach for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Grays Beach. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Grays Beach. Data in table shown for September 5, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

0-3 h3-6 h6-9 h9-12 h
1' 2"1' 2"1' 2"1' 3"
0.35 m0.35 m0.35 m0.38 m
12-15 h15-18 h18-21 h21-24 h
1' 5"1' 8"1' 10"1' 10"
0.43 m0.51 m0.55 m0.55 m

Surf report in Grays Beach

Grays Beach wave height and direction

Grays Beach weather forecast

Grays Beach wind speed and direction

Current temperature and weather

Data in a table show Grays Beach temperature today (September 5, 2025). For more information and forecast for a few days, go to the weather forecast Grays Beach.

0-3 h3-6 h6-9 h9-12 h
63.9°F64.4°F66.6°F69.1°F
12-15 h15-18 h18-21 h21-24 h
72.1°F73.4°F71.4°F69.6°F

You may also be interested in other sections of our site for Grays Beach: Sunrise and Sunset, Tides

Grays Beach water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Grays Beach. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Grays Beach on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

MonthAvrMinMax
January39.6°F32.4°F46.4°Fcold
Sea water temperature in Grays Beach in January
February37°F30.6°F42.1°Fcold
Sea water temperature in Grays Beach in February
March38.8°F31.3°F46.4°Fcold
Sea water temperature in Grays Beach in March
April44.4°F36.1°F50.9°Fcold
Sea water temperature in Grays Beach in April
May52.7°F45°F63°Fcold
Sea water temperature in Grays Beach in May
June61.7°F52.5°F72.5°Fcold
Sea water temperature in Grays Beach in June
July69.1°F61°F76.3°Fwarm
Sea water temperature in Grays Beach in July
August70°F64°F77.4°Fwarm
Sea water temperature in Grays Beach in August
September66.6°F59.9°F73.8°Fcold
Sea water temperature in Grays Beach in September
October59.5°F52.5°F66.7°Fcold
Sea water temperature in Grays Beach in October
November51.4°F45.1°F60.1°Fcold
Sea water temperature in Grays Beach in November
December44.8°F38.5°F51.1°Fcold
Sea water temperature in Grays Beach in December

Chart monthly average water temperature in Grays Beach

Water temperature in Grays Beach

Where is the warmest sea water in the world?

If you want to plan a vacation on the beach and enjoy the warm sea, choose the day of the year, region and the minimum comfortable sea/ocean temperature that interests you. As a result, you will get a list of countries and cities in which the average sea temperature or maximum temperature on this day over the past 10 years exceeds your chosen value

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Nearby beaches and cities

The nearest beaches and cities from Grays Beach with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

WaterWeatherWave
Chapin Beach69.1°F73.4°F1' 5"
Dennis69.8°F73.4°F1' 6"
Harborview Beach69.8°F73.4°F1' 6"
Brewster69.1°F69.8°F1' 7"
South Yarmouth72.3°F71.6°F1' 9"
Springhill Beach68.9°F73.4°F1' 5"
Cold Storage Beach (Dennis)69.1°F69.8°F1' 9"
West Dennis72°F71.6°F1' 9"
Town Neck Beach68.9°F73.4°F1' 5"
Hyannis72.3°F71.6°F2' 2"

Cape Cod photo gallery

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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 Grays 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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