Updated
St Marys River
River
Use caution — flow is well above normal for this date
Use cautionUse caution — flow is well above normal for this date: live streamflow is available but no water-temperature sensor is nearby.
- Live streamflow is available but no water-temperature sensor is nearby.
- Flow is above the 75th percentile for Aug 23 (median 5 ft³/s over 79 years); fast water is the top river-drowning risk.
Use caution — flow is well above normal for this date
Use cautionUse caution — flow is well above normal for this date: live streamflow is available but no water-temperature sensor is nearby.
- Live streamflow is available but no water-temperature sensor is nearby. — USGS gauge 01661500, as of Aug 23, 6:15 AM gauge-local time
- Flow is above the 75th percentile for Aug 23 (median 5 ft³/s over 79 years); fast water is the top river-drowning risk. — USGS daily streamflow statistics, as of Aug 23, 6:15 AM gauge-local time
Flow is high for this date — above the 75th percentile for Aug 23 (median 5 ft³/s over 79 years).
No official beach-advisory feed for Maryland yet — follow posted signs and local guidance.
Live, provisional data from USGS gauge St Marys River at Great Mills, MD (2.5 mi away), as of Aug 23, 6:15 AM gauge-local time.
Weather at St Marys River
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Frequently asked questions
- Where is St Marys River?
- St Marys River is a river in Maryland.
- Can you swim at St Marys River?
- Use caution — flow is well above normal for this date: live streamflow is available but no water-temperature sensor is nearby. Checked August 23, 2026.
- How is St Marys River rated?
- St Marys River in Maryland has an average visitor rating of 4.3 out of 5, based on 21 reviews.
- What amenities does St Marys River have?
- Visitor-listed amenities at St Marys River include camping-nearby.
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Best Times to Visit
- ›Check water levels and current conditions before visiting
- ›Wear life jackets when on the water
- ›Be aware of rapids and potential hazards
- ›Respect private property along riverbanks
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