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Penobscot River

Penobscot River

© Dylan Brady

Penobscot River Current Water Temperature and Forecast

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

53°F

TODAY

52°F

YESTERDAY

53°F

A WEEK AGO

As of today, the minimum water temperature in the Penobscot River ranges from 50°F (10°C) to 54°F (12°C). The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit can be used.

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 Penobscot River Over the Last 30 Days

Today the water temperature in Penobscot River is lower than the same day in previous years. The water temperature range here in May is from 43°F to 70°F. The water temperature has decreased over the past 7 days but has increased over the past month.

The forecasted water temperature values for Penobscot 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
May 2253°F56°F
May 2353°F56°F
May 2451°F56°F
May 2551°F56°F
May 2651°F56°F
May 2753°F56°F
May 2852°F56°F
May 2953°F56°F
May 3056°F53°F
May 3156°F53°F
Jun 165°F54°F
Jun 265°F54°F
Jun 365°F55°F
Jun 465°F56°F
Jun 565°F56°F
Jun 665°F57°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 Penobscot River by Month

January

MinimumAverageMaximum
36°F42°F48°F

February

MinimumAverageMaximum
36°F42°F48°F

March

MinimumAverageMaximum
36°F44°F52°F

April

MinimumAverageMaximum
36°F48°F61°F

May

MinimumAverageMaximum
43°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 Penobscot River

Water Temperature in Cities and Towns on Penobscot River

Milford
United States (Maine)
55°F
Bangor
United States (Maine)
50°F

Penobscot River Weather

MAY 30

54°F / 64°F
light drizzle

rain: 46% | wind: 8 mph

MAY 31

52°F / 57°F
slight rain showers

rain: 54% | wind: 9 mph

JUNE 1

46°F / 63°F
light drizzle

rain: 54% | wind: 13 mph

JUNE 2

43°F / 66°F
overcast

rain: 20% | wind: 11 mph

Water Temperature in Penobscot River: General Trends and Swimming Opportunities

Source:
• location Maine
Mouth:
• location Penobscot Bay
• elevation sea level
Length 109 miles (175 km)

The Penobscot River, located in the state of Maine, is a significant waterway that offers a variety of recreational opportunities, including swimming. During the summer months, the water temperature in the Penobscot River typically ranges between 60°F and 75°F (15°C to 24°C), which is relatively cool but comfortable for swimming, especially on warmer days. The river's temperature can be quite refreshing, particularly in the hotter months, though it can vary depending on weather conditions and the specific section of the river. In the spring and fall, the water tends to be cooler, making swimming less appealing for some, but still possible for those who enjoy a brisk dip.

While the Penobscot River is not widely known for swimming as a primary activity, certain sections offer calm and shallow areas ideal for a peaceful swim. Many locals and visitors enjoy the river for kayaking, canoeing, and fishing, with occasional opportunities for swimming in spots where the flow is gentler. Popular areas for swimming include some of the smaller tributaries and beaches along the riverbanks. As always, it's important to be aware of the currents and water depth, especially in the deeper, faster-moving parts of the river. In general, the Penobscot offers a serene environment for those seeking to cool off in the water, especially in scenic and more secluded areas.

Geographical Location of Penobscot River

Nearby Rivers

Frequently Asked Questions About Penobscot River and its Water Temperatures

What is the current water temperature in Penobscot River?

The water temperature today in Penobscot River ranges from 50°F (10.1°C) to 55°F (12.6°C).

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

The average water temperature in Penobscot 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 Penobscot River in May?

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

What is the water temperature in Penobscot River in September?

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

Where does Penobscot River flow?

Penobscot River flows through United States (Maine).

Is it possible to swim in the Penobscot River?

Yes, it is possible to swim in the Penobscot River. However, due to currents, temperature, and potential pollution, care should always be exercised.