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Connecticut River

Connecticut River Current Water Temperature and Forecast

On this page, you will find comprehensive information about the water temperature in Connecticut River, 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 Connecticut River

33°F

TODAY

33°F

YESTERDAY

33°F

A WEEK AGO

As of today, the minimum water temperature in the Connecticut River ranges less than 41°F (5°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.

Analysis, Historical Data, and Forecast of Water Temperature

Water Temperature Chart for Connecticut River Over the Last 30 Days

Today the water temperature in Connecticut River is lower than the same day in previous years. The water temperature range here in February is from 32°F to 48°F. The water temperature is trending upward, and it has increased both over the past 30 days and the past week.

The forecasted water temperature values for Connecticut River are presented in the table below.

The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.

Daily Water Temperature Chart

DateCurrentAverageForecast
Feb 1633°F40°F
Feb 1733°F40°F
Feb 1833°F40°F
Feb 1933°F40°F
Feb 2033°F40°F
Feb 2133°F40°F
Feb 2233°F40°F
Feb 2333°F40°F
Feb 2440°F33°F
Feb 2540°F34°F
Feb 2640°F34°F
Feb 2740°F35°F
Feb 2840°F35°F
Mar 144°F35°F
Mar 244°F36°F
Mar 344°F37°F
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast

Water Temperature Ranges in Connecticut River by Month

January

MinimumAverageMaximum
32°F40°F48°F

February

MinimumAverageMaximum
32°F40°F48°F

March

MinimumAverageMaximum
37°F44°F52°F

April

MinimumAverageMaximum
41°F50°F61°F

May

MinimumAverageMaximum
46°F56°F70°F

June

MinimumAverageMaximum
57°F65°F72°F

July

MinimumAverageMaximum
63°F68°F75°F

August

MinimumAverageMaximum
63°F71°F73°F

September

MinimumAverageMaximum
52°F64°F66°F

October

MinimumAverageMaximum
46°F56°F61°F

November

MinimumAverageMaximum
37°F47°F61°F

December

MinimumAverageMaximum
37°F40°F46°F

Monthly Water Temperature Histogram for Connecticut River

Water Temperature in Cities and Towns on Connecticut River

United States (Massachusetts)
39°F
United States (Connecticut)
41°F

Connecticut River Weather

FEBRUARY 23

18°F / 34°F
overcast

rain: 3% | wind: 8 mph

FEBRUARY 24

7°F / 36°F
fog

rain: 14% | wind: 6 mph

FEBRUARY 25

30°F / 36°F
slight snow fall

rain: 20% | wind: 7 mph

FEBRUARY 26

19°F / 37°F
fog

rain: 14% | wind: 6 mph

FEBRUARY 27

25°F / 37°F
dense intensity drizzle

rain: 33% | wind: 12 mph

Water Temperature in Connecticut River: General Trends and Swimming Opportunities

The Connecticut River, which runs through the state of Connecticut, is a vital waterway for both the environment and recreation. The water temperature in the river can vary significantly depending on the season. During the cooler months, typically from fall to early spring, the water temperature can dip as low as 40°F (4°C), making it quite chilly and not suitable for swimming. As the weather warms in late spring and summer, the river's temperature gradually rises, reaching a range of 60°F to 70°F (16°C to 21°C) in the warmer months. These temperatures make the river more tolerable for recreational activities, but the water remains cooler than what you might find in lakes or pools.

While the Connecticut River is not typically known as a prime location for swimming, it offers great opportunities for other water activities, such as kayaking, canoeing, and boating. The cool temperatures can actually be refreshing for those who are engaging in these activities, especially during the summer when the air temperature can get quite warm. Swimming is still possible, especially in areas where the river widens and has slower currents, but it may not be ideal for extended periods due to the cooler water temperature.

For those who prefer warmer conditions for swimming, it’s common to head to nearby lakes or public pools during the summer months. Connecticut has many parks and lakes where water temperatures can reach 70°F to 80°F (21°C to 27°C), offering a more comfortable environment for a swim. These alternatives provide an excellent opportunity for residents and visitors to enjoy water activities in more moderate temperatures.

Geographical Location of Connecticut River

Frequently Asked Questions About Connecticut River and its Water Temperatures

What is the current water temperature in Connecticut River?

The water temperature today in Connecticut River ranges from 39°F (4.1°C) to 41°F (5.0°C).

What is the water temperature in Connecticut River during the summer months?

The average water temperature in Connecticut River during the summer months is typically between 65°F to 71°F (19°C to 21°C), and it can reach up to 75°F (24°C) at its warmest. However, in some years, the temperature may exceed this range.

What is the water temperature in Connecticut River in May?

The average water temperature in Connecticut River in May ranges from 46°F to 70°F (8°C to 21°C).

What is the water temperature in Connecticut River in September?

The average water temperature in Connecticut River in September is typically between 52°F to 66°F (11°C to 19°C).

Where does Connecticut River flow?

Connecticut River flows through United States (Connecticut, Massachusetts, Vermont, New Hampshire).

Is it possible to swim in the Connecticut River?

Yes, it is possible to swim in the Connecticut River. However, it's important to be aware of local regulations, and water and weather conditions for safety.

What major cities are located on Connecticut River?

Cities along the course of Connecticut River include Hartford (Connecticut), Springfield (Massachusetts).