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Potomac River
Potomac River Current Water Temperature and Forecast
On this page, you will find comprehensive information about the water temperature in Potomac 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 Potomac River
35°F
TODAY
34°F
YESTERDAY
39°F
A WEEK AGO
As of today, the minimum water temperature in the Potomac 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 Potomac River Over the Last 30 Days
Today the water temperature in Potomac River is lower than the same day in previous years. The water temperature range here in February is from 34°F to 48°F. The water temperature has decreased over the past 7 days but has increased over the past month.
The forecasted water temperature values for Potomac 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
| Date | Current | Average | Forecast |
|---|---|---|---|
| Feb 16 | 39°F | 41°F | |
| Feb 17 | 39°F | 41°F | |
| Feb 18 | 39°F | 41°F | |
| Feb 19 | 39°F | 41°F | |
| Feb 20 | 39°F | 41°F | |
| Feb 21 | 40°F | 41°F | |
| Feb 22 | 34°F | 41°F | |
| Feb 23 | 35°F | 41°F | |
| Feb 24 | 41°F | 36°F | |
| Feb 25 | 41°F | 36°F | |
| Feb 26 | 41°F | 37°F | |
| Feb 27 | 41°F | 37°F | |
| Feb 28 | 41°F | 37°F | |
| Mar 1 | 44°F | 37°F | |
| Mar 2 | 44°F | 38°F | |
| Mar 3 | 44°F | 38°F |
Water Temperature Ranges in Potomac River by Month
January
| Minimum | Average | Maximum |
|---|---|---|
| 34°F | 41°F | 48°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 34°F | 41°F | 48°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 44°F | 52°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 41°F | 50°F | 61°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 56°F | 70°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 57°F | 65°F | 72°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 63°F | 68°F | 75°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 63°F | 71°F | 73°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 52°F | 64°F | 66°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 56°F | 61°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 47°F | 61°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 40°F | 46°F |
Monthly Water Temperature Histogram for Potomac River
Water Temperature in Cities and Towns on Potomac River
Known Beaches in the Area of Potomac River?
Leesylvania State Park
Leesylvania State Park is a 4-stars sandy beach, located in a 3 km (2 miles) radius of Potomac River. There are lifeguards on the beach. There is parking. There are restrooms. Leesylvania State Park is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible.
Mason Neck State Park
Mason Neck State Park is a 2-stars sandy beach, located in a 6 km (4 miles) radius of Potomac River. There is parking. There are restrooms.
Grays Beach Private
Grays Beach Private is a 1-stars sandy beach, located in a 7 km (4 miles) radius of Potomac River.
Potomac River Weather
FEBRUARY 23
30°F / 48°F
overcastrain: 1% | wind: 12 mph
FEBRUARY 24
28°F / 54°F
overcastrain: 1% | wind: 10 mph
FEBRUARY 25
37°F / 64°F
overcastrain: 10% | wind: 12 mph
FEBRUARY 26
39°F / 61°F
overcastrain: 10% | wind: 9 mph
FEBRUARY 27
43°F / 52°F
overcastrain: 35% | wind: 14 mph
Water Temperature in Potomac River: General Trends and Swimming Opportunities
Source North Branch
• location Fairfax Stone, Preston County, West Virginia
Mouth Chesapeake Bay
• location St. Mary\'s County, Maryland/Northumberland County, Virginia, United States
Length 405 mi (652 km)
The Potomac River, flowing through the U.S. states of Maryland, Virginia, and Washington, D.C., offers a variety of recreational activities, including swimming. Water temperatures in the river can fluctuate depending on the season, typically ranging from about 40°F (4°C) during the winter months to 70-80°F (21-27°C) in the summer, making it more comfortable for swimming as the weather warms up. While the Potomac is not as warm as some southern rivers, it still provides a refreshing dip for those who enjoy outdoor activities along the riverbanks.
Swimming in the Potomac River is popular in certain areas, particularly in recreational zones such as Theodore Roosevelt Island and near the Great Falls Park. These areas offer calmer stretches of the river where swimmers can safely enjoy the water. However, in other parts of the river, currents can be strong and the water may be murky, which can pose safety risks. Many people prefer to swim in designated areas or participate in water sports like kayaking and canoeing, where they can maintain better control of their experience. Despite these factors, the Potomac remains a beloved destination for water activities and provides a scenic backdrop for those looking to enjoy the outdoors.
Geographical Location of Potomac River
Nearby Rivers
Frequently Asked Questions About Potomac River and its Water Temperatures
What is the current water temperature in Potomac River?
The water temperature today in Potomac River ranges from 35°F (1.6°C) to 40°F (4.6°C).
What is the water temperature in Potomac River during the summer months?
The average water temperature in Potomac 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 Potomac River in May?
The average water temperature in Potomac River in May ranges from 46°F to 70°F (8°C to 21°C).
What is the water temperature in Potomac River in September?
The average water temperature in Potomac River in September is typically between 52°F to 66°F (11°C to 19°C).
Where does Potomac River flow?
Potomac River flows through United States (District of Columbia, Virginia, West Virginia, Maryland).
Is it possible to swim in the Potomac River?
Yes, it is physically possible to swim in the Potomac River. However, due to safety concerns and pollution, swimming is generally not recommended and often illegal in certain areas.
What major cities are located on Potomac River?
Cities along the course of Potomac River include Alexandria (Virginia), Arlington (Virginia), Washington (District of Columbia).