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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

35°F

TODAY

38°F

YESTERDAY

35°F

A WEEK AGO

As of today, the minimum water temperature in the Connecticut River ranges from 41°F (5°C) to 47°F (8°C). This water temperature is still quite low, and swimming in such conditions may only be comfortable for hardened individuals. It is recommended to limit the time spent in the water to avoid hypothermia. For those not accustomed to cold water, it is better to refrain from swimming. However, if you decide to enter the water, it is advisable to wear a warm wetsuit for protection against the cold.

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 March is from 32°F to 52°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
Mar 2035°F42°F
Mar 2134°F42°F
Mar 2235°F42°F
Mar 2337°F42°F
Mar 2437°F42°F
Mar 2537°F42°F
Mar 2638°F42°F
Mar 2735°F42°F
Mar 2842°F35°F
Mar 2942°F36°F
Mar 3042°F36°F
Mar 3142°F37°F
Apr 150°F37°F
Apr 250°F38°F
Apr 350°F39°F
Apr 450°F40°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
32°F42°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)
44°F
United States (Connecticut)
46°F

Connecticut River Weather

MARCH 28

27°F / 45°F
overcast

rain: 13% | wind: 12 mph

MARCH 29

21°F / 37°F
slight snow shower

rain: 33% | wind: 7 mph

MARCH 30

30°F / 34°F
slight snow fall

rain: 47% | wind: 8 mph

MARCH 31

34°F / 46°F
moderate drizzle

rain: 51% | wind: 7 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 44°F (6.5°C) to 46°F (7.9°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).