About this river
Saco River is a 23.3 mile river near Long Lake Marina in Maine. Streamflow is measured at the USGS gauge Saco River near Conway, NH (site 01064500). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1904 to 2026
Saco River typically runs highest in April, at a median 2,035 cfs, and lowest in September, at 228 cfs. The highest flow on record for any single day is 33,900 cfs, in 1936.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 400 | 280 to 651 | |
| February | 352 | 265 to 524 | |
| March | 550 | 324 to 962 | |
| April | 2,035 | 1,490 to 3,480 | |
| May | 1,690 | 1,150 to 2,720 | |
| June | 613 | 420 to 912 | |
| July | 323 | 240 to 490 | |
| August | 244 | 175 to 396 | |
| September | 228 | 161 to 369 | |
| October | 341 | 213 to 644 | |
| November | 663 | 411 to 1,100 | |
| December | 549 | 349 to 885 |
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 103 years of record. Statistics published by the US Geological Survey for Saco River near Conway, NH (site 01064500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
One mapped launch sits in the mapped area of Saco River. Ramp data comes from the USGS national boat-ramp inventory.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Saco 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.
