Around here
Around Manasquan River
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US · Forest roads: USDA Forest Service MVUM · BLM routes and areas: Bureau of Land Management (simplified for web display)
About this river
Manasquan River is a 25.6 mile river near Jersey Shore Whale Watching Tours in New Jersey. Streamflow is measured at the USGS gauge Manasquan River near Allenwood NJ (site 01408029). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1990 to 2025
Manasquan River typically runs highest in March, at a median 96 cfs, and lowest in September, at 16 cfs. The highest flow on record for any single day is 7,250 cfs, in 2011.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 69 | 40 to 119 |
| February | 77 | 49 to 124 |
| March | 96 | 58 to 169 |
| April | 86 | 53 to 129 |
| May | 53 | 34 to 96 |
| June | 31 | 19 to 58 |
| July | 20 | 14 to 37 |
| August | 18 | 13 to 39 |
| September | 16 | 13 to 34 |
| October | 20 | 14 to 44 |
| November | 30 | 15 to 61 |
| December | 55 | 23 to 106 |
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 35 years of record. Statistics published by the US Geological Survey for Manasquan River near Allenwood NJ (site 01408029). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
4 mapped launches sit in the mapped area of Manasquan River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.
- Manasquan Marine Center, ManasquanManasquan RiverPublic
- Cove Haven Marina, BrickManasquan RiverPublic
- Belmar ManuttiShark RiverPublic
- Shark River Hills Marina, NeptuneShark RiverPublic
Made to print
Put Manasquan River on your wall
This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Manasquan River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.






