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Water Temperature in Arlington in Potomac River: Current and Forecast

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

18.6°C

TODAY

18.8°C

YESTERDAY

21.4°C

A WEEK AGO

As of today, the minimum water temperature in Arlington ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming.

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 in Arlington Over the Last 30 Days

Today the water temperature in Arlington is higher than the same day in previous years. The water temperature range here in October is from 8°C to 21°C. The water temperature has decreased over the past 7 days but has increased over the past month.

The forecasted water temperature values for Arlington 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
Sep 3021.4°C16.5°C
Oct 121.2°C14.5°C
Oct 221.4°C14.5°C
Oct 320.8°C14.5°C
Oct 419.7°C14.5°C
Oct 518.8°C14.5°C
Oct 618.8°C14.5°C
Oct 718.6°C14.5°C
Oct 814.5°C18.2°C
Oct 914.5°C17.8°C
Oct 1014.5°C17.5°C
Oct 1114.5°C17.2°C
Oct 1214.5°C16.9°C
Oct 1314.5°C16.7°C
Oct 1414.5°C16.5°C
Oct 1514.5°C16.3°C
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast

Water Temperature Ranges in Arlington by Month

January

MinimumAverageMaximum
2°C5.5°C9°C

February

MinimumAverageMaximum
2°C5.5°C9°C

March

MinimumAverageMaximum
3°C9°C15°C

April

MinimumAverageMaximum
5°C11.5°C18°C

May

MinimumAverageMaximum
8°C13.4°C21°C

June

MinimumAverageMaximum
14°C19°C24°C

July

MinimumAverageMaximum
17°C23°C29°C

August

MinimumAverageMaximum
17°C21.5°C26°C

September

MinimumAverageMaximum
11°C16.5°C22°C

October

MinimumAverageMaximum
8°C14.5°C21°C

November

MinimumAverageMaximum
3°C8.1°C16°C

December

MinimumAverageMaximum
3°C4.7°C8°C

Monthly Water Temperature Histogram for Potomac River in Arlington

Arlington Weather

OCTOBER 8

17°C / 24°C
moderate rain showers

rain: 58% | wind: 14 km/h

OCTOBER 9

11°C / 21°C
light drizzle

rain: 29% | wind: 21 km/h

OCTOBER 10

8°C / 19°C
overcast

rain: 11% | wind: 12 km/h

Water Temperature in Arlington: General Trends and Swimming Opportunities

Arlington, Virginia, is situated along the Potomac River, offering beautiful views and recreational opportunities along its banks. The water temperature in the Potomac River near Arlington varies throughout the year. During the warmer months, water temperatures can rise to around 70°F to 75°F (21°C to 24°C), providing a more comfortable environment for activities like kayaking, canoeing, and fishing. However, swimming in the Potomac River is not a common activity in Arlington due to concerns over water quality, currents, and safety, particularly in the more urbanized stretches of the river.

Although the Potomac River is not typically used for swimming in Arlington, there are several other water recreation options in the area. Arlington's proximity to the river makes it a great spot for enjoying the waterfront through scenic walks, parks, and biking trails along the riverbanks. For those looking for swimming opportunities, public pools in Arlington maintain water temperatures between 78°F and 82°F (25°C to 28°C), making them ideal for swimming in a controlled environment during the summer. Additionally, nearby lakes and other regional bodies of water may offer better conditions for swimming and outdoor activities.

Geographical Location of Arlington

Frequently Asked Questions About Arlington and its Water Temperatures

What is the current water temperature in Arlington?

The water temperature today in Arlington is 65°F (18.6°C).

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

The average water temperature in Arlington 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 Arlington in May?

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

What is the water temperature in Arlington in September?

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

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

Yes, it is possible to swim in the Potomac River in Arlington, though it's not recommended due to water quality concerns. There are no officially designated swimming areas, so any swim is undertaken at one's own risk.