Updated
Threemile Bay
Bay · Constantia, New York
Comfortable for a swim today
Good to swimComfortable for a swim today: water temperature is 74°F, within the comfortable 70–86°F range.
- Water temperature is 74°F, within the comfortable 70–86°F range.
Things to Do Near Threemile Bay
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Cape Town: Constantia Winelands

Full Day Constantia Wine Tasting and Table Mountain

Stargazing and Constellation Shoreline Tour in Vieques

Constantia Wine and Storytelling Tour with Lunch From Cape Town
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Comfortable for a swim today
Good to swimComfortable for a swim today: water temperature is 74°F, within the comfortable 70–86°F range.
- Water temperature is 74°F, within the comfortable 70–86°F range. — NOAA buoy 45215, as of Aug 22, 9:56 PM UTC
No official beach-advisory feed for New York yet — follow posted signs and local guidance.
Live data from NOAA buoy 45215 (30.7 mi away), as of Aug 22, 9:56 PM UTC.
Weather at Threemile Bay









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Frequently asked questions
- Where is Threemile Bay?
- Threemile Bay is a bay in Constantia, New York.
- What is the water temperature at Threemile Bay?
- As of August 22, 2026, the water temperature at Threemile Bay in Constantia, New York is 74°F (24°C), measured by NOAA buoy 45215, 30.7 miles away.
- Can you swim at Threemile Bay?
- Comfortable for a swim today: water temperature is 74°F, within the comfortable 70–86°F range. Checked August 22, 2026.
- How is Threemile Bay rated?
- Threemile Bay in Constantia, New York has an average visitor rating of 4.8 out of 5, based on 11 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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