About this river
Saint Johns River is a 5.4 mile river near Wekiva Island in Florida. Streamflow is measured at the USGS gauge ST. Johns River near Sanford, FL (site 02234500). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1987 to 2026
Saint Johns River typically runs highest in October, at a median 3,980 cfs, and lowest in May, at 710 cfs. The highest flow on record for any single day is 16,800 cfs, in 2023.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 1,660 | 1,020 to 2,850 | |
| February | 1,320 | 674 to 2,150 | |
| March | 1,050 | 380 to 1,950 | |
| April | 842 | 133 to 1,560 | |
| May | 710 | 160 to 1,230 | |
| June | 1,040 | 471 to 1,540 | |
| July | 1,850 | 1,010 to 2,400 | |
| August | 2,520 | 1,170 to 3,660 | |
| September | 3,350 | 1,850 to 4,600 | |
| October | 3,980 | 2,490 to 6,360 | |
| November | 3,180 | 1,800 to 6,320 | |
| December | 2,300 | 1,390 to 3,970 |
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 33 years of record. Statistics published by the US Geological Survey for ST. Johns River near Sanford, FL (site 02234500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
3 mapped launches sit in the mapped area of Saint Johns River. Ramp data comes from the USGS national boat-ramp inventory.
- Carraway PlaceSt. Johns RIverRestricted
- Lake Monroe Wayside ParkSt. Johns River - Lake MonroePublic
- Lake Monroe Park (Debary)St. Johns River - Lake MonroePublic
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Saint Johns River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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