National Harbor Marina
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Around here
Around National Harbor Marina
- Greenbelt CampgroundRV park · ★ 4.214.9 mi (opens in a new tab)
- Greenbelt CampgroundCampground · 159 sites15.3 mi
- Marsden Tract Group CampsiteGroup camp · 6 sites17.1 mi
- Cherry Hill CampgroundRV park · ★ 4.717.1 mi (opens in a new tab)
- Cherry Hill ParkRV park · ★ 4.817.2 mi (opens in a new tab)
- Port Tobacco RV ResortRV park · ★ 4.319.3 mi (opens in a new tab)
- Fort Foote ParkRecreation area1.2 mi (opens in a new tab)
- Oxon Hill Farm Visitor CenterVisitor center1.3 mi (opens in a new tab)
- Oxon Cove Park & Oxon Hill FarmRecreation area1.5 mi (opens in a new tab)
- Harmony HallRecreation area2.8 mi (opens in a new tab)
- Fort Washington Park Visitor CenterVisitor center5 mi (opens in a new tab)
- Fort Washington ParkRecreation area5.1 mi (opens in a new tab)
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US
Typical flow by month
1966 to 2025
The water at National Harbor Marina typically runs highest in March, at a median 50 cfs, and lowest in September, at 3.9 cfs. The highest flow on record for any single day is 4,500 cfs, in 1979.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 39 | 20 to 59 |
| February | 43 | 30 to 67 |
| March | 50 | 32 to 79 |
| April | 44 | 30 to 66 |
| May | 30 | 17 to 52 |
| June | 14 | 6.6 to 28 |
| July | 7.3 | 1.9 to 18 |
| August | 6.1 | 1.1 to 16 |
| September | 3.9 | 0.2 to 15 |
| October | 7.0 | 2.7 to 26 |
| November | 15 | 7.0 to 36 |
| December | 30 | 14 to 56 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 58 years of record. Statistics published by the US Geological Survey for Piscataway Creek at Piscataway, MD (site 01653600). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Current conditions
Today · Fri
68Maybe/ 100
87% chance of rain · Gusts to 20 kt
DrizzleHigh 68°F, low 57°FRain 87%Wind 6 kt, gusts 20
Streamflow
3.9 cfs
Below normal (11th)
Water level
2.31 ft
Air quality
43 Good
Bald Eagle monitor, 4 km
National Weather ServiceBelow flood stage
Flood stage 11.5 ft. NWS reads 2.3 ft here.
Tides
Falling
Low 0.2 ft at Sat 12:47 AM
Predicted at Alexandria, Va., 3 km away.
Get a 2027 tide calendar for this stationForecast from Open-Meteo global models (NOAA & ECMWF). Flood stages and forecasts: NOAA National Weather Service. Air quality: District of Columbia - Department of Energy and Environment via EPA AirNow. Preliminary data, not verified. Tide predictions: NOAA CO-OPS, feet above mean lower low water. See full conditions →
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