St. Johns River at Astor water level
Tidal gauge, St. Johns River, Florida, United States
Right now
Above flood stage
Water level
- Flow
- 372 cfs
History
20252026
The forecast expects the river to rise to 3.30 ft by Tuesday, October 20 at 08:00 AM. The forecast reaches flood stage. Follow local warnings. Issued Sunday, October 18 at 08:47 AM by NOAA National Weather Service.
What this means
The gauge at St. Johns River at Astor reads 2.79 ft, over the official flood stage of 2.30 ft.
That puts it 0.28 ft above the median of 2.51 ft for mid-October, based on 35 years of readings. A year ago it stood at 3.18 ft (−0.39 ft). The record high is 4.81 ft, set on October 12, 2024.
The water is rising: up 0.19 ft over the past 24 hours. The forecast expects the river to rise to 3.30 ft by Tuesday, October 20 at 08:00 AM. The forecast reaches flood stage. Follow local warnings. Follow National Weather Service flood warnings for the area, and never drive through flooded roads.
Judged against the official flood stage for this gauge. How to read levels
Key numbers
- Median for this date
- 2.51 ft0.28 ft above the median for this date
- Normal for this date
- 1.47 ft – 3.78 ft8 years in 10 fall in this range (35 years of records)
- Same day last year
- 3.18 ft−0.39 ft
- Lowest and highest in 30 days
- 2.05 ft – 3.12 ft
- Lowest and highest in 12 months
- 0.39 ft – 3.12 ft
- Highest on record
- 4.81 ftOctober 12, 2024
- Forecast peak
- 3.30 ftTuesday, October 20 at 08:00 AM
High water at St. Johns River at Astor
The National Weather Service splits flooding into minor, moderate and major flood stage, each tied to what starts to go under water at this particular gauge. Minor flooding usually means low roads, parks and farmland; major flooding reaches homes and businesses.
Keep children and dogs well back from the edge, and stay off flooded footpaths and towpaths.
What happens at each level
- 4.50 ft
- Major widespread and long duration flooding occurs, with water rescues and evacuations necessary. Most low-lying homes become uninhabitable due to 2 to 3 feet water depth in many areas of the community on or near the river. Water reaches Front Street south of SR-40. Areas off of Riveredge Drive are inaccessible. Water surrounds and enters homes on Riverview Drive and Claire Street. Most areas near the Astor Landing Camptround are inaccessible due to knee-deep water.
- 4.00 ft
- Major flooding occurs with water entering many structures on canals and along the river. Long duration flooding will occur, with levels taking weeks to months to return below flood stage. Water rescues will be necessary. River Road becomes inaccessible, with 1 to 2 feet water depth in numerous homes on Wildhog, Possum, Bonnet and Snail roads. Roads along Blue Creek are inaccessible with major flooding of homes on Otter, Branch and Chestnut roads. Camp South Moon Road and Juno Trail are inaccessible.
- 3.50 ft
- Canals have overflowed into yards. Homes on or near Wildhog, Bonnet and Snail roads become inaccessible with several inches of water inside homes along the river and canals. Docks at Astor Bridge marina and throughout Astor are completely submerged. Bartram Rd and Holiday Circle are inaccessible with yards completely submerged. Clair Street is inaccessible. Roads flooded in South Moon Fish Camp, docks and yards at condominiums on Juno Trail and water breaches the sea wall at Blair's Jungle Den.
- 3.00 ft
- Water approaches or may enter lowest homes on or near Wildhog Road and nearby canals. Flooding reaches the parking lot of the Juno Trail Apartments. Flooding on portions of Alligator Road and Holiday Road. Lowest lying yards along Blue Creek are flooded. Roads at Astor Landing Campground and Lake Dexter Boat Ramp begin to flood. Water enters lower homes closest to the river on McPherson Lane.
- 2.80 ft
- Docks and boat ramps covered at South Moon Fish Camp and approaching sea wall at Blair's Jungle Den. Water approaching sites closest to the river at Fish Tales RV Resort and Astor Landing Campground. Portion of Clair Street covered by river water south of the Butler Boat Ramp. Docks underwater at the Astor Bridge Marina and along Riveredge Drive. Portions of Fox Road are covered with water nearest to the river. Acorn, Hazelnut and Redbud roads are underwater with yards inundated.
- 2.79 ft
- Right now
- 2.30 ft
- Many docks become submerged along the river and in canals in the Astor community. Water enters yards of properties on Bartram Road, Holiday Circle and along Wild Hog Road on the Lake County side. In Volusia County, water encroaches yards of homes on the river side of Alice Drive. No wake zones are in effect from near the South Moon Canal to approximately 800 feet south of the Riverview lodge.
- 2.00 ft
- River levels rise and fills canals, encroaching on docks, yards and boat ramps in the vicinity of SR-40. Properties in low areas along and near the river and many canals should prepare for further water encroachment.
Impact statements from the U.S. National Weather Service.
Highest crests on record
Chance of at least minor flooding in October to December: > 95 %.
| Rank | Level | Date |
|---|---|---|
| 1 | 4.81 ft | October 12, 2024 |
| 2 | 4.71 ft | October 1, 2022 |
| 3 | 4.52 ft | November 10, 2022 |
| 4 | 4.46 ft | October 6, 2017 |
| 5 | 4.43 ft | September 13, 2017 |
| 6 | 4.18 ft | September 26, 2004 |
| 7 | 4.03 ft | October 20, 2017 |
| 8 | 3.90 ft | September 17, 2001 |
| 9 | 3.82 ft | September 25, 2008 |
| 10 | 3.49 ft | October 12, 2016 |
Weather at the gauge
No rain in the last 3 days.
Forecast: Open-Meteo
Map
Other gauges on the St. Johns River
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| St. Johns River near MelbourneRiver gauge, St. Johns River | 6.69 ft | High | −0.03 ft | 88 mi |
| St. Johns River near CocoaRiver gauge, St. Johns River | 15.41 ft | High | ±0 | 68 mi |
| St. Johns River near ChristmasRiver gauge, St. Johns River | 7.95 ft | Normal | ±0 | 56 mi |
| St. Johns River above Lake Harney near GenevaRiver gauge, St. Johns River | 6.82 ft | Normal | −0.01 ft | 43 mi |
| St. Johns River near SanfordRiver gauge, St. Johns River | 4.08 ft | Normal | ±0 | 26 mi |
| St. Johns River near De LandRiver gauge, St. Johns River | 3.15 ft | Normal | −0.01 ft | 14 mi |
| St. Johns River at Buffalo Bluff near SatsumaTidal gauge, St. Johns River | 12.61 ft | High | +0.95 ft | 31 mi |
| St. Johns River at JacksonvilleTidal gauge, St. Johns River | 12.29 ft | High | +0.54 ft | 80 mi |
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Silver Glen Springs near AstorRiver gauge, Silver Glen Springs | 2.88 ft | Normal | +0.36 ft | 9 mi |
| Blue Springs near Orange CityRiver gauge, Blue Springs | 3.46 ft | Normal | −0.03 ft | 19 mi |
| Blackwater Creek near CassiaRiver gauge, Blackwater Creek | 7.30 ft | High | −0.02 ft | 20 mi |
| Ocklawaha River at Moss BluffRiver gauge, Ocklawaha River | 36.36 ft | Normal | +0.08 ft | 22 mi |
| Ocklawaha River above Moss Bluff Dam at Moss BluffRiver gauge, Ocklawaha River | 57.49 ft | Low | −0.18 ft | 22 mi |
| Wekiva River near SanfordRiver gauge, Wekiva River | 3.68 ft | Very high | −0.12 ft | 25 mi |
| Tomoka River near Holly HillRiver gauge, Tomoka River | 7.74 ft | Normal | −0.12 ft | 25 mi |
| Haynes Creek at LisbonRiver gauge, Haynes Creek | 62.65 ft | Normal | −0.06 ft | 26 mi |
Questions and answers
How does the St. Johns River at Astor compare with last year?
It is 0.39 ft lower than on the same day last year, when the reading was 3.18 ft.
What is flood stage for the St. Johns River at Astor?
The official flood stage is 2.30 ft. The current reading is above it.
What is the water level of St. Johns River at Astor today?
On Oct 18, 2026, 03:30 PM EDT, the water level was 2.79 ft. Up 0.19 ft over the last 24 hours.
Is St. Johns River at Astor rising or falling?
Up 0.19 ft over the last 24 hours. Down 0.33 ft over the last 7 days.
Is the level of St. Johns River at Astor normal?
Above flood stage. Judged against the official flood stage for this gauge.
What is the highest water level ever recorded at St. Johns River at Astor?
The highest level on record is 4.81 ft on October 12, 2024.
Is St. Johns River at Astor expected to rise?
The forecast expects the river to rise to 3.30 ft by Tuesday, October 20 at 08:00 AM. The forecast reaches flood stage. Follow local warnings.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- U.S. Geological Survey
- Station code
usgs:02236125(Agency page)- Coordinates
29.16693, -81.52206(WGS84)- Update interval
- every 15 minutes
- Licence
- Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision
Published series
| Parameter | Last value | Time (UTC) | Quality |
|---|---|---|---|
| Water level | 2.79 ft | 2026-10-18 19:30 | Provisional |
| Flow | 372 cfs | 2026-10-18 19:30 | Provisional |
Download
Embed this gauge
Add a live card for this gauge to your website. It updates on its own and links back here.
How to cite
U.S. Geological Survey: St. Johns River at Astor (usgs:02236125). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/florida/st-johns-river-at-astor
How we check values
Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.
Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer