Washington DC water temp
This data the coastal Washington DC water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.
Current water temperature in Washington DC
Water temperature in Washington DC today is 71.6°F. Based on our historical data over a period of ten years, the warmest water in this day in Washington DC was 78.8°F, and the coldest was recorded in 2024 at 69.8°F. Water temperature in Washington DC is expected to rise to 73°F in the next 10 days. September average water temperature in Washington DC is 71.4°F, the minimum temperature is 60.8°F, and the maximum is 80.6°F.
The swimming season in Washington DC lasts from June to September. During those months, Washington DC water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Washington DC in winter reaches 41°F, in spring 55.9°F, in summer the average temperature rises to 77.2°F, and in autumn it is 61.3°F.
Washington DC water temperature now
| September 5, 2025 |
|---|
| today temp |
| 71.6°F |
| September 4, 2025 |
|---|
| yesterday temp |
| 71.6°F |
Current temperature and weather
Data in a table show Washington DC temperature today (September 5, 2025). For more information and forecast for a few days, go to the weather forecast Washington DC.
| 0-3 h | 3-6 h | 6-9 h | 9-12 h |
|---|---|---|---|
 |  | |  |
| 74.3°F | 72.5°F | 70°F | 75.6°F |
| 12-15 h | 15-18 h | 18-21 h | 21-24 h |
|---|---|---|---|
| | | |
| 87.1°F | 94.1°F | 90.9°F | 85.1°F |
You may also be interested in other sections of our site for Washington DC: Sunrise and Sunset
Washington DC water temperature by month
These figures shows the average, minimum and maximum monthly water temperature in Washington DC. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Washington DC on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve
| Month | Avr | Min | Max | |
|---|---|---|---|---|
| January | 39.7°F | 35.6°F | 51.8°F | cold |
| Water temperature in Washington DC in January | ||||
| February | 40.5°F | 37.4°F | 51.8°F | cold |
| Water temperature in Washington DC in February | ||||
| March | 46.6°F | 37.4°F | 57.2°F | cold |
| Water temperature in Washington DC in March | ||||
| April | 56.7°F | 48.2°F | 68°F | cold |
| Water temperature in Washington DC in April | ||||
| May | 64.6°F | 53.6°F | 77°F | cold |
| Water temperature in Washington DC in May | ||||
| June | 73.8°F | 64.4°F | 84.2°F | warm |
| Water temperature in Washington DC in June | ||||
| July | 79.5°F | 73.4°F | 86°F | hot |
| Water temperature in Washington DC in July | ||||
| August | 78.1°F | 71.6°F | 82.4°F | hot |
| Water temperature in Washington DC in August | ||||
| September | 71.4°F | 60.8°F | 80.6°F | warm |
| Water temperature in Washington DC in September | ||||
| October | 61.2°F | 53.6°F | 69.8°F | cold |
| Water temperature in Washington DC in October | ||||
| November | 51.4°F | 41°F | 64.4°F | cold |
| Water temperature in Washington DC in November | ||||
| December | 42.6°F | 37.4°F | 50°F | cold |
| Water temperature in Washington DC in December | ||||
Chart monthly average water temperature in Washington DC
