Updated
Stonington Harbor
Bay · Stonington, Connecticut
Cool water — ease in carefully
Use cautionCool water — ease in carefully: water temperature is 69°F, cool enough to cause cold-water shock on a sudden entry.
- Water temperature is 69°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 69°F, cool enough to cause cold-water shock on a sudden entry.
- Water temperature is 69°F, cool enough to cause cold-water shock on a sudden entry. — NOAA buoy NLHC3, as of Aug 21, 8:00 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 (9.8 mi away), as of Aug 21, 8:00 PM UTC.
Weather at Stonington Harbor
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Frequently asked questions
- Where is Stonington Harbor?
- Stonington Harbor is a bay in Stonington, Connecticut.
- What is the water temperature at Stonington Harbor?
- As of August 21, 2026, the water temperature at Stonington Harbor in Stonington, Connecticut is 69°F (21°C), measured by NOAA buoy NLHC3, 9.8 miles away.
- Can you swim at Stonington Harbor?
- Cool water — ease in carefully: water temperature is 69°F, cool enough to cause cold-water shock on a sudden entry. Checked August 21, 2026.
- How is Stonington Harbor rated?
- Stonington Harbor in Stonington, Connecticut has an average visitor rating of 4.9 out of 5, based on 8 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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