St Johns River near Sanford, FL Water Level Today

NWS river forecast

Forecast from the NOAA National Water Prediction Service. Issued a few times a day and only while a forecast is active. Not for navigation.

Last 30 days

About this gauge

USGS gauge 02234500 sits on the St Johns River and reads everything draining 2,582 square miles of the Upper St. Johns basin. Daily flow has been on record here since 1987, 33 years of it.

Where this gauge sits in the drainage

Lake Monroe near Sanford, FL sits immediately upstream, so dam releases rather than rainfall set the flow here. Two gauged sites sit upstream of here. The closest is St Johns River above Lake Harney near Geneva, FL, reading 2,043 square miles. This gauge adds the 539 square miles that drain in between. Downstream the next reading comes from St Johns River near De Land, FL at 3,066 square miles, so what passes this gauge is about 84% of the water measured there.

Normal flows here

The St Johns River runs a median of 1,785 cfs at this gauge across 33 years of record. October is the fullest month at a median 3,980 cfs, and May the leanest at 710 cfs. The highest daily mean on record is 16,800 cfs in 2023, and the lowest is -2160.0 cfs in 2002.

Medians from the USGS daily-statistics record, 1987 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

The St Johns River reaches flood stage at this gauge at 5.5 feet. NWS starts watching it at 4.2 feet. The highest crest on record is 9 feet, in October 2022.

Flood categories and crest history from the NOAA National Water Prediction Service, gauge SNFF1. Stages are gage height, not depth. Not for navigation.