About this river
Saint Johns River is a 48.8 mile river near Cocoa Kayaking in Florida. Streamflow is measured at the USGS gauge ST. Johns River near Cocoa, FL (site 02232400). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1954 to 2026
Saint Johns River typically runs highest in October, at a median 1,770 cfs, and lowest in May, at 174 cfs. The highest flow on record for any single day is 10,700 cfs, in 1954.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 534 | 286 to 963 | |
| February | 420 | 254 to 771 | |
| March | 359 | 163 to 796 | |
| April | 219 | 101 to 792 | |
| May | 174 | 53 to 488 | |
| June | 211 | 61 to 609 | |
| July | 551 | 191 to 1,150 | |
| August | 902 | 320 to 2,040 | |
| September | 1,420 | 572 to 2,405 | |
| October | 1,770 | 953 to 3,150 | |
| November | 1,310 | 560 to 2,270 | |
| December | 757 | 402 to 1,320 |
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 72 years of record. Statistics published by the US Geological Survey for ST. Johns River near Cocoa, FL (site 02232400). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
7 mapped launches sit in the mapped area of Saint Johns River. Ramp data comes from the USGS national boat-ramp inventory.
- Sweetwater Boat RampSt. Johns RiverPublic
- Camp Holly Fishing & AirboatsSt. Johns RiverRestricted
- Lake Florence Primitive Boat RampSt. Johns River - Lake FlorencePublic
- Lake Poinsett Lodge and MarinaSt. Johns River - Lake PoinsettRestricted
- James G. Bourbeau ParkSt. Johns RiverPublic
- Leroy Wright Recreation AreaSt. Johns RiverPublic
- Port St. John Public Boat RampIndian River LagoonPublic
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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