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Old Greenwich
Water Temperature in the Atlantic Ocean in Old Greenwich, Connecticut: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Old Greenwich in Connecticut, 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 Old Greenwich
3.2°C
TODAY
3.0°C
YESTERDAY
3.1°C
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Atlantic Ocean in Old Greenwich is 3.2°C. 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 Old Greenwich Over the Last 30 Days
The water temperature in Old Greenwich 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 Old Greenwich will remain nearly unchanged in the coming days, its value will be 3.6°C.
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 Old Greenwich 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
| Date | Current | Average | Forecast |
|---|---|---|---|
| Feb 15 | 3.1°C | 4.3°C | |
| Feb 16 | 3.3°C | 3.8°C | |
| Feb 17 | 3.3°C | 3.0°C | |
| Feb 18 | 2.5°C | 4.0°C | |
| Feb 19 | 2.5°C | 2.8°C | |
| Feb 20 | 3.3°C | 4.0°C | |
| Feb 21 | 3.0°C | 3.0°C | |
| Feb 22 | 3.2°C | 4.3°C | |
| Feb 23 | 3.8°C | 3.3°C | |
| Feb 24 | 3.8°C | 3.4°C | |
| Feb 25 | 3.3°C | 3.4°C | |
| Feb 26 | 3.8°C | 3.4°C | |
| Feb 27 | 3.5°C | 3.4°C | |
| Feb 28 | 4.3°C | 3.5°C | |
| Mar 1 | 3.5°C | 3.5°C | |
| Mar 2 | 4.0°C | 3.6°C |
Sea Temperature in Old Greenwich Throughout the Year
Throughout the year, the sea temperature in Old Greenwich exceeds 77°F (25°C) for 0 days, exceeds 72°F (22°C) for 58 days, and exceeds 64°F (18°C) for 124 days.
Below is the annual chart of sea temperature changes in the Atlantic Ocean in Old Greenwich.
January
| Minimum | Average | Maximum |
|---|---|---|
| 2°C | 5°C | 8°C |
February
| Minimum | Average | Maximum |
|---|---|---|
| 2°C | 4.5°C | 7°C |
March
| Minimum | Average | Maximum |
|---|---|---|
| 2°C | 5°C | 8°C |
April
| Minimum | Average | Maximum |
|---|---|---|
| 4°C | 8°C | 12°C |
May
| Minimum | Average | Maximum |
|---|---|---|
| 8°C | 13°C | 18°C |
June
| Minimum | Average | Maximum |
|---|---|---|
| 13°C | 18°C | 23°C |
July
| Minimum | Average | Maximum |
|---|---|---|
| 18°C | 22°C | 26°C |
August
| Minimum | Average | Maximum |
|---|---|---|
| 20°C | 23.5°C | 27°C |
September
| Minimum | Average | Maximum |
|---|---|---|
| 18°C | 21.5°C | 25°C |
October
| Minimum | Average | Maximum |
|---|---|---|
| 13°C | 18.5°C | 24°C |
November
| Minimum | Average | Maximum |
|---|---|---|
| 9°C | 13.5°C | 18°C |
December
| Minimum | Average | Maximum |
|---|---|---|
| 5°C | 9°C | 13°C |
Monthly Water Temperature Histogram for Atlantic Ocean in Old Greenwich
You can explore detailed data on how the water temperature in Old Greenwich varies each month:
What Beaches Are There In and Around Old Greenwich?
Uncas Point Beach
Uncas Point Beach is a 2-stars sandy beach, is located directly in Old Greenwich. There is parking. There are cafés.
Fords Beach
Fords Beach is a 3-stars sandy beach, is located directly in Old Greenwich. There is parking. There are restrooms. There are cafés.
Greenwich Point Park
Greenwich Point Park is a 3-stars sandy beach, is located directly in Old Greenwich. There is parking. There are restrooms. There are cafés.
John J. Boccuzzi Park
John J. Boccuzzi Park is a 2-stars sandy beach, located in a 2 km (1 miles) radius of Old Greenwich. There is parking.
Greenwich Point
Greenwich Point is a 3-stars sandy beach, located in a 2 km (1 miles) radius of Old Greenwich. There is parking. There are restrooms. There are cafés.
Greenwich Point Beach
Greenwich Point Beach is a 5-stars sandy beach, located in a 2 km (1 miles) radius of Old Greenwich. 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.
Harbor Point Beach
Harbor Point Beach is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Old Greenwich.
Harbor Point Boardwalk
Harbor Point Boardwalk is a 2-stars sandy beach, located in a 3 km (2 miles) radius of Old Greenwich. There are cafés.
Cummings Park Beach
Cummings Park Beach is a 1-stars sandy beach, located in a 4 km (2 miles) radius of Old Greenwich.
Cummings Beach
Cummings Beach is a 4-stars sandy beach, located in a 4 km (2 miles) radius of Old Greenwich. There are lifeguards on the beach. There is parking. There are restrooms. Cummings Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
West Beach
West Beach is a 4-stars sandy beach, located in a 4 km (2 miles) radius of Old Greenwich. There are lifeguards on the beach. There is parking. There are restrooms. West Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Island Beach
Island Beach is a 5-stars sandy beach, located in a 5 km (3 miles) radius of Old Greenwich. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Island Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Cove Island Park
Cove Island Park is a 4-stars sandy beach, located in a 6 km (4 miles) radius of Old Greenwich. There are lifeguards on the beach. There is parking. There are restrooms. Cove Island Park is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Cove Beach North
Cove Beach North is a 1-stars sandy beach, located in a 6 km (4 miles) radius of Old Greenwich.
Weed Beach
Weed Beach is a 4-stars sandy beach, located in a 7 km (4 miles) radius of Old Greenwich. There are lifeguards on the beach. There is parking. There are restrooms. Weed Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Pear Tree Point Beach
Pear Tree Point Beach is a 5-stars sandy beach, located in a 7 km (4 miles) radius of Old Greenwich. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Pear Tree Point Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Great Captains Island Beach
Great Captains Island Beach is a 3-stars sandy beach, located in a 7 km (4 miles) radius of Old Greenwich. There are restrooms. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Byram Park Beach
Byram Park Beach is a 4-stars sandy beach, located in a 7 km (4 miles) radius of Old Greenwich. 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.
Byram Park
Byram Park is a 3-stars sandy beach, located in a 7 km (4 miles) radius of Old Greenwich. There is parking. There are restrooms. There are cafés.
Westchester Country Club Beach
Westchester Country Club Beach is a 5-stars sandy beach, located in a 10 km (6 miles) radius of Old Greenwich. 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.
Old Greenwich Weather
FEBRUARY 23
1°C / 6°C
overcast clouds: 85-100%humidity: 66% | wind: 2 km/h
FEBRUARY 24
3°C / 11°C
overcast clouds: 85-100%humidity: 76% | wind: 4 km/h
FEBRUARY 25
1°C / 11°C
broken clouds: 51-84%humidity: 69% | wind: 4 km/h
FEBRUARY 26
4°C / 8°C
overcast clouds: 85-100%humidity: 56% | wind: 2 km/h
Sea Temperature in the Atlantic Ocean in Old Greenwich: General Trends and Swimming Opportunities
The coastal region of Connecticut, United States features a temperate maritime climate, characterized by relatively mild winters, warm humid summers, and regular rainfall spread throughout the year. Seasonal weather transitions can be noticeable, with cool autumns leading towards winter and spring serving as a moderate transition period towards summer.
Old Greenwich is located in North America in the Northern Hemisphere at a latitude of 41 degrees, along the shores of the Atlantic Ocean. Old Greenwich lies within the Connecticut in United States.
The average annual daytime air temperature in Old Greenwich is 61°F (16°C), with the average nighttime temperature being 46°F (8°C). The highest average daily temperature occurs in July, reaching 82°F (28°C), while the lowest is in January at 39°F (4°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 68°F (20°C).
According to historical data, Old Greenwich experiences 118 rainy days per year, which accounts for 32 percent of all days in the year. On average, there are 10 rainy days each month. The wettest month is December, with 11 rainy days and 3.9 inches (99 mm) of precipitation, while the driest month is October, which typically has 8 rainy days and only 4.0 inches (101 mm) of precipitation.
The average annual water temperature in Atlantic Ocean in Old Greenwich is 55°F (13°C). In January, the water reaches its lowest point of the year at 36°F (2°C), while in August, it peaks at 81°F (27°C). In Old Greenwich, the water temperature in the Atlantic Ocean never consistently reaches a comfortable level for swimming in any month.
Geographical Location of Old Greenwich
Nearby Cities
Frequently Asked Questions About Old Greenwich and its Water Temperatures
What is the current sea temperature in Old Greenwich?
The water temperature today in the Atlantic Ocean in Old Greenwich is 38°F (3.2°C).
In which months is the water temperature in Old Greenwich comfortable for swimming?
It cannot be guaranteed that the water temperature in Old Greenwich will be comfortable for swimming in any month of the year.
What is the water temperature in Old Greenwich during the winter?
The water temperature in the Atlantic Ocean in Old Greenwich during the winter ranges from 36°F to 55°F (2°C to 13°C).
What is the water temperature in Old Greenwich during the spring?
The water temperature in the Atlantic Ocean in Old Greenwich during the spring ranges from 36°F to 64°F (2°C to 18°C).
What is the water temperature in Old Greenwich during the summer?
The water temperature in the Atlantic Ocean in Old Greenwich during the summer ranges from 55°F to 81°F (13°C to 27°C).
What is the water temperature in Old Greenwich during the fall?
The water temperature in the Atlantic Ocean in Old Greenwich during the fall ranges from 48°F to 77°F (9°C to 25°C).
Is it possible to swim in the sea in Old Greenwich at any time of the year?
The Atlantic Ocean in Old Greenwich is quite cool, and swimming is only possible in June, July, August, September, and October when the water temperature reaches 70°F (21°C).
Is Old Greenwich a popular tourist destination for beach vacations?
Old Greenwich has a moderate level of popularity for beach vacations; while it does receive some visitors, it is not among the top seaside destinations, as other locations may offer more favorable conditions.
What sea temperatures can I expect in Old Greenwich in the next month?
In March, the water temperature in the Atlantic Ocean in Old Greenwich will range between 36°F (2°C) and 46°F (8°C)