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Nantucket

Water Temperature in the Atlantic Ocean in Nantucket, Massachusetts: Current, Historical Data and Forecast

On this page, you will find comprehensive information about the sea temperature in Nantucket in Massachusetts, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Current Water Temperature in Nantucket

33°F

TODAY

34°F

YESTERDAY

34°F

A WEEK AGO

Analysis, Historical Data, and Forecast of Water Temperature

Today sea water temperature in the Atlantic Ocean in Nantucket is 1.2°F. Such water is extremely cold and not recommended for swimming without proper preparation. In these conditions, the risk of hypothermia is very high, and prolonged exposure to the water can be hazardous to your health. If you decide to swim, it is important to have the appropriate gear, such as a wetsuit. Typically, only experienced swimmers or those who practice winter swimming venture into such waters.

It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.

Water Temperature Chart for Atlantic Ocean in Nantucket Over the Last 30 Days

The water temperature in Nantucket today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.

According to our forecast, the sea temperature in Nantucket will rise slightly in the coming days and reach 36°F.

Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.

Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts across United States to enhance accuracy.

Water temperature data for Nantucket and nearby towns and resorts is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.

Table of Daily Sea Temperature Data

DateCurrentAverageForecast
Feb 1534°F36°F
Feb 1635°F37°F
Feb 1735°F37°F
Feb 1835°F37°F
Feb 1935°F38°F
Feb 2035°F38°F
Feb 2134°F39°F
Feb 2233°F37°F
Feb 233834°F
Feb 243834°F
Feb 253735°F
Feb 263735°F
Feb 273735°F
Feb 283936°F
Mar 13936°F
Mar 23936°F
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast

Sea Temperature in Nantucket Throughout the Year

Throughout the year, the sea temperature in Nantucket exceeds 77°F (25°C) for 0 days, exceeds 72°F (22°C) for 16 days, and exceeds 64°F (18°C) for 102 days.

Below is the annual chart of sea temperature changes in the Atlantic Ocean in Nantucket.

January

MinimumAverageMaximum
36°F41°F46°F

February

MinimumAverageMaximum
36°F39°F43°F

March

MinimumAverageMaximum
36°F40°F45°F

April

MinimumAverageMaximum
39°F46°F52°F

May

MinimumAverageMaximum
43°F52°F61°F

June

MinimumAverageMaximum
50°F61°F72°F

July

MinimumAverageMaximum
59°F68°F77°F

August

MinimumAverageMaximum
64°F71°F77°F

September

MinimumAverageMaximum
61°F68°F75°F

October

MinimumAverageMaximum
48°F58°F68°F

November

MinimumAverageMaximum
45°F53°F61°F

December

MinimumAverageMaximum
37°F45°F52°F

Monthly Water Temperature Histogram for Atlantic Ocean in Nantucket

You can explore detailed data on how the water temperature in Nantucket varies each month:

What Beaches Are There In and Around Nantucket?

Shearwater Association

Shearwater Association is a 3-stars sandy beach, is located directly in Nantucket. There is parking. There are cafés. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Washington Street

Washington Street is a 2-stars sandy beach, is located directly in Nantucket. There are restrooms. Washington Street is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.

Link to the location of the beach

Children's Beach

Children's Beach is a 3-stars sandy beach, is located directly in Nantucket. There is parking. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Brant Point

Brant Point is a 2-stars sandy beach, is located directly in Nantucket. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Children's

Children's is a 4-stars sandy beach, is located directly in Nantucket. There are lifeguards on the beach. There are restrooms. There are cafés. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Steps

Steps is a 2-stars sandy beach, located in a 2 km (1 miles) radius of Nantucket. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Jetties

Jetties is a 5-stars sandy beach, located in a 2 km (1 miles) radius of Nantucket. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Washing Pond

Washing Pond is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Nantucket.

Link to the location of the beach

Surfside 1

Surfside 1 is a 5-stars sandy beach, located in a 4 km (2 miles) radius of Nantucket. There are lifeguards on the beach. There is parking. There are restrooms. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Surfside 2

Surfside 2 is a 5-stars sandy beach, located in a 4 km (2 miles) radius of Nantucket. There are lifeguards on the beach. There is parking. There are restrooms. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Nobadeer

Nobadeer is a 3-stars sandy beach, located in a 4 km (2 miles) radius of Nantucket. There is parking. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Ladies Beach

Ladies Beach is a 3-stars sandy beach, located in a 5 km (3 miles) radius of Nantucket. There is parking. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Miacomet

Miacomet is a 2-stars sandy beach, located in a 5 km (3 miles) radius of Nantucket. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Dionis

Dionis is a 4-stars sandy beach, located in a 5 km (3 miles) radius of Nantucket. There are lifeguards on the beach. There is parking. There are restrooms. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Sewerbeds

Sewerbeds is a 3-stars sandy beach, located in a 5 km (3 miles) radius of Nantucket. Sewerbeds is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Madequecham Beach

Madequecham Beach is a 3-stars sandy beach, located in a 6 km (4 miles) radius of Nantucket. There is parking. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Cisco

Cisco is a 4-stars sandy beach, located in a 6 km (4 miles) radius of Nantucket. There are lifeguards on the beach. There is parking. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

40th Pole

40th Pole is a 3-stars sandy beach, located in a 7 km (4 miles) radius of Nantucket. There is parking. There are cafés. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Pocomo

Pocomo is a 2-stars sandy beach, located in a 7 km (4 miles) radius of Nantucket. There is parking.

Link to the location of the beach

Warren's Landing

Warren's Landing is a 2-stars sandy beach, located in a 8 km (5 miles) radius of Nantucket. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Nantucket Weather

FEBRUARY 23

34°F / 36°F
clear sky

humidity: 78% | wind: 2 mph

FEBRUARY 24

36°F / 39°F
broken clouds: 51-84%

humidity: 88% | wind: 5 mph

FEBRUARY 25

34°F / 39°F
overcast clouds: 85-100%

humidity: 88% | wind: 4 mph

FEBRUARY 26

36°F / 37°F
clear sky

humidity: 89% | wind: 2 mph

Massachusetts, United StatesMassachusetts, United StatesMassachusetts, United States

Sea Temperature in the Atlantic Ocean in Nantucket: General Trends and Swimming Opportunities

Original name
Nantucket
The Local Time
09:21 PM
Time Zone
UTC-5
Sunrise
06:26 AM
Sunset
05:21 PM
Length of the day
10 h 54 m

The coastal region of Massachusetts, United States, experiences a humid continental climate with maritime influences. This climate is characterized by warm, humid summers and cold, wet winters, with significant precipitation throughout the year and possible heavy snowfall in winter months.

Nantucket is located in North America in the Northern Hemisphere at a latitude of 41 degrees, along the shores of the Atlantic Ocean. Nantucket lies within the Massachusetts in United States.

The average annual daytime air temperature in Nantucket is 59°F (15°C), with the average nighttime temperature being 45°F (7°C). The highest average daily temperature occurs in July, reaching 79°F (26°C), while the lowest is in January at 38°F (3°C). As for nighttime temperatures, the minimum average temperature of 26°F (-4°C) is recorded in January, and the maximum is in July, reaching 63°F (17°C).

According to historical data, Nantucket experiences 122 rainy days per year, which accounts for 33 percent of all days in the year. On average, there are 10 rainy days each month. The wettest month is December, with 12 rainy days and 4.4 inches (111 mm) of precipitation, while the driest month is September, which typically has 8 rainy days and only 3.5 inches (89 mm) of precipitation.

The average annual water temperature in Atlantic Ocean in Nantucket is 54°F (12°C). In January, the water reaches its lowest point of the year at 36°F (2°C), while in July, it peaks at 77°F (25°C). In Nantucket, the water temperature in the Atlantic Ocean never consistently reaches a comfortable level for swimming in any month.

Geographical Location of Nantucket

Frequently Asked Questions About Nantucket and its Water Temperatures

What is the current sea temperature in Nantucket?

The water temperature today in the Atlantic Ocean in Nantucket is 33°F (0.8°C).

In which months is the water temperature in Nantucket comfortable for swimming?

It cannot be guaranteed that the water temperature in Nantucket will be comfortable for swimming in any month of the year.

What is the water temperature in Nantucket during the winter?

The water temperature in the Atlantic Ocean in Nantucket during the winter ranges from 36°F to 52°F (2°C to 11°C).

What is the water temperature in Nantucket during the spring?

The water temperature in the Atlantic Ocean in Nantucket during the spring ranges from 36°F to 61°F (2°C to 16°C).

What is the water temperature in Nantucket during the summer?

The water temperature in the Atlantic Ocean in Nantucket during the summer ranges from 50°F to 77°F (10°C to 25°C).

What is the water temperature in Nantucket during the fall?

The water temperature in the Atlantic Ocean in Nantucket during the fall ranges from 45°F to 75°F (7°C to 24°C).

Is it possible to swim in the sea in Nantucket at any time of the year?

The Atlantic Ocean in Nantucket is quite cool, and swimming is only possible in June, July, August, and September when the water temperature reaches 70°F (21°C).

Is Nantucket a popular tourist destination for beach vacations?

Nantucket a fairly popular beach destination, offering good conditions for swimming and relaxation, with a steady flow of tourists, especially during peak seasons.

What sea temperatures can I expect in Nantucket in the next month?

In March, the water temperature in the Atlantic Ocean in Nantucket will range between 36°F (2°C) and 45°F (7°C)