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Satellite view of Greenwich Bay

Greenwich Bay

Bay

Comfortable for a swim today

Good to swim

Comfortable for a swim today: water temperature is 72°F, within the comfortable 70–86°F range.

  • Water temperature is 72°F, within the comfortable 70–86°F range.
Good to swimGood conditions today

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Comfortable for a swim today

Good to swim

Comfortable for a swim today: water temperature is 72°F, within the comfortable 70–86°F range.

  • Water temperature is 72°F, within the comfortable 70–86°F range. NOAA buoy CPTR1, as of Aug 23, 6:54 AM UTC
Water temp
72°F
22°C

No official beach-advisory feed for Massachusetts yet — follow posted signs and local guidance.

Live data from NOAA buoy CPTR1 (4.6 mi away), as of Aug 23, 6:54 AM UTC.

Weather at Greenwich Bay

H: 80° L: 65°
Mist
Mist
66°
|
Feels like 69°
Precipitation
90%
Humidity
97%
Wind
4 mph
UV Index
0
Water Conditions:
🏊Cool but swimmable🌧️Rain expected
12 AM
Mist
66°
3 AM
Mist
66°
6 AM
Light drizzle
65°
9 AM
Light drizzle
66°
12 PM
Light drizzle
70°
3 PM
Light drizzle
74°
6 PM
Light rain shower
78°
9 PM
Mist
70°

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Frequently asked questions

Where is Greenwich Bay?
Greenwich Bay is a bay in Massachusetts.
What is the water temperature at Greenwich Bay?
As of August 23, 2026, the water temperature at Greenwich Bay in Massachusetts is 72°F (22°C), measured by NOAA buoy CPTR1, 4.6 miles away.
Can you swim at Greenwich Bay?
Comfortable for a swim today: water temperature is 72°F, within the comfortable 70–86°F range. Checked August 23, 2026.

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Best Times to Visit

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Right Now
Good conditions for visiting
General Tips:
  • 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
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

Massachusetts

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