Arlington — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Arlington, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Arlington today is 18.8°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature 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.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| OCT 6 | 20.0°C | 14.5°C | |
| OCT 7 | 20.4°C | 14.5°C | |
| OCT 8 | 20.0°C | 14.5°C | |
| OCT 9 | 19.3°C | 14.5°C | |
| OCT 10 | 18.3°C | 14.5°C | |
| OCT 11 | 19.2°C | 14.5°C | |
| OCT 12 | 18.6°C | 14.5°C | |
| OCT 13 | 18.8°C | 14.5°C | |
| OCT 14 | 14.5°C | 18.6°C | |
| OCT 15 | 14.5°C | 18.4°C | |
| OCT 16 | 14.5°C | 18.2°C | |
| OCT 17 | 14.5°C | 17.9°C | |
| OCT 18 | 14.5°C | 17.7°C | |
| OCT 19 | 14.5°C | 17.5°C | |
| OCT 20 | 14.5°C | 17.3°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 1°C | 6°C | 9°C |
| February | 0°C | 5°C | 9°C |
| March | 3°C | 9°C | 15°C |
| April | 5°C | 12°C | 20°C |
| May | 8°C | 15°C | 22°C |
| June | 14°C | 19°C | 25°C |
| July | 17°C | 23°C | 30°C |
| August | 17°C | 23°C | 29°C |
| September | 11°C | 18°C | 26°C |
| October | 8°C | 15°C | 21°C |
| November | 3°C | 8°C | 16°C |
| December | 2°C | 5°C | 8°C |
Arlington: Weather Forecast
October 14
October 15
October 16
October 17
Location & Local Information
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.