Updated
Main Street Dock and Beach
Park · Groton, Connecticut
Cool water — ease in carefully
Use cautionCool water — ease in carefully: water temperature is 70°F, cool enough to cause cold-water shock on a sudden entry.
- Water temperature is 70°F, cool enough to cause cold-water shock on a sudden entry.
- Heavy rain today can raise bacteria levels near outfalls and river mouths.
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Cool water — ease in carefully
Use cautionCool water — ease in carefully: water temperature is 70°F, cool enough to cause cold-water shock on a sudden entry.
- Water temperature is 70°F, cool enough to cause cold-water shock on a sudden entry. — NOAA buoy NLHC3, as of Aug 21, 6:30 PM UTC
- Heavy rain today can raise bacteria levels near outfalls and river mouths.
No official beach-advisory feed for Connecticut yet — follow posted signs and local guidance.
Live data from NOAA buoy NLHC3 (6.6 mi away), as of Aug 21, 6:30 PM UTC.
Weather at Main Street Dock and Beach









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Frequently asked questions
- Where is Main Street Dock and Beach?
- Main Street Dock and Beach is a park in Groton, Connecticut.
- What is the water temperature at Main Street Dock and Beach?
- As of August 21, 2026, the water temperature at Main Street Dock and Beach in Groton, Connecticut is 70°F (21°C), measured by NOAA buoy NLHC3, 6.6 miles away.
- Can you swim at Main Street Dock and Beach?
- Cool water — ease in carefully: water temperature is 70°F, cool enough to cause cold-water shock on a sudden entry. Checked August 21, 2026.
- How is Main Street Dock and Beach rated?
- Main Street Dock and Beach in Groton, Connecticut has an average visitor rating of 4.6 out of 5, based on 30 reviews.
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Best Times to Visit
- ›Weekday mornings (8–10 AM) are typically less crowded
- ›Check the forecast 2–3 days ahead for best planning
- ›Avoid holiday weekends for a quieter experience
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