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Concord

Water Temperature in Concord in Merrimack River: Current and Forecast

On this page, you will find comprehensive information about the water temperature in Concord in Merrimack 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 Concord

56°F

TODAY

56°F

YESTERDAY

57°F

A WEEK AGO

As of today, the minimum water temperature in Concord ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear.

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 Merrimack River in Concord Over the Last 30 Days

Today the water temperature in Concord is lower than the same day in previous years. The water temperature range here in October is from 46°F to 66°F. The water temperature has decreased over the past 7 days but has increased over the past month.

The forecasted water temperature values for Concord 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.

Table of Daily Water Temperature Data

DateCurrentAverageForecast
Oct 1557°F56°F
Oct 1656°F56°F
Oct 1756°F56°F
Oct 1857°F56°F
Oct 1956°F56°F
Oct 2056°F56°F
Oct 2156°F56°F
Oct 2256°F56°F
Oct 2356°F56°F
Oct 2456°F56°F
Oct 2556°F56°F
Oct 2656°F56°F
Oct 2656°F56°F
Oct 2756°F56°F
Oct 2856°F56°F
Oct 2956°F56°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 Concord by Month

January

MinimumAverageMaximum
32°F40°F48°F

February

MinimumAverageMaximum
32°F40°F48°F

March

MinimumAverageMaximum
34°F43°F52°F

April

MinimumAverageMaximum
36°F48°F61°F

May

MinimumAverageMaximum
46°F56°F70°F

June

MinimumAverageMaximum
57°F65°F72°F

July

MinimumAverageMaximum
63°F68°F75°F

August

MinimumAverageMaximum
63°F69°F75°F

September

MinimumAverageMaximum
52°F61°F70°F

October

MinimumAverageMaximum
46°F56°F66°F

November

MinimumAverageMaximum
37°F47°F61°F

December

MinimumAverageMaximum
37°F40°F46°F

Monthly Water Temperature Histogram for Merrimack River in Concord

Concord Weather

OCTOBER 23

41°F / 54°F
light drizzle

rain: 49% | wind: 12 mph

OCTOBER 24

45°F / 55°F
overcast

rain: 10% | wind: 13 mph

Water Temperature in Concord: General Trends and Swimming Opportunities

In Concord, New Hampshire, the Merrimack River flows through the city, offering a scenic backdrop for outdoor activities. However, swimming in the river itself is not very common or recommended due to the river's varying water levels, currents, and water quality. During the summer months, the water temperature in the Merrimack River near Concord can range from 60°F (15°C) to 75°F (24°C), with the warmest temperatures typically occurring in late July and August. While these temperatures are more comfortable than colder spring or fall conditions, the water can still feel a bit cool for swimming, especially in the early summer.

The Merrimack River is more popular for other recreational activities, such as boating, fishing, and kayaking. There are designated areas in Concord for launching canoes or kayaks, and many people enjoy paddling along the river’s gentle stretches. The river's currents are manageable in most parts, making it suitable for those new to water activities.

For those specifically looking for swimming opportunities, there are alternative locations in and around Concord. Local swimming pools or nearby lakes, such as those at Bear Brook State Park, offer more traditional and safer options for swimming with warmer water temperatures. The Merrimack River, while beautiful, remains a better spot for river-based activities rather than swimming.

Geographical Location of Concord

Nearby Cities

Frequently Asked Questions About Concord and its Water Temperatures

What is the current water temperature in Concord?

The water temperature today in Concord is 56°F (13.2°C).

What is the water temperature in Concord during the summer months?

The average water temperature in Concord 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 Concord in May?

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

What is the water temperature in Concord in September?

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

Is it possible to swim in the Merrimack River in Concord, and what are the available options for doing so?

Yes, it's possible to swim in the Merrimack River in Concord. Options for doing so include public spots like Sewalls Falls Recreation Area or by riverbank access from private property.