Where is Greenwich Bay?

Greenwich Bay is a bay in Rhode Island.

What is the water temperature at Greenwich Bay?

As of August 22, 2026, the water temperature at Greenwich Bay in Rhode Island is 73°F (23°C), measured by NOAA buoy CPTR1, 4.6 miles away.

Updated June 13, 2026

Greenwich Bay

Bay

Comfortable for a swim today

Good to swim

Comfortable for a swim today: water temperature is 73°F, within the comfortable 70–86°F range.

Water temperature is 73°F, within the comfortable 70–86°F range.
Heavy rain today can raise bacteria levels near outfalls and river mouths.

See full conditions ↓Can I swim today? →

Good to swimRainy today

bay on the coast of Rhode Island in the United States

Interactive map not available

Comfortable for a swim today

Good to swim

Comfortable for a swim today: water temperature is 73°F, within the comfortable 70–86°F range.

Water temperature is 73°F, within the comfortable 70–86°F range. — NOAA buoy CPTR1, as of Aug 22, 11:00 PM UTC
Heavy rain today can raise bacteria levels near outfalls and river mouths.

Water temp

73°F

23°C

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

Live data from NOAA buoy CPTR1 (4.6 mi away), as of Aug 22, 11:00 PM UTC.

Live map near here →

Weather at Greenwich Bay

H: 75° L: 65°

Light rain

71°

Feels like 75°

Precipitation

91%

Humidity

88%

Wind

4 mph

UV Index

Water Conditions:

🏊Cool but swimmable🌧️Rain expected

12 AM

65°

3 AM

65°

6 AM

66°

9 AM

70°

12 PM

74°

3 PM

73°

6 PM

71°

9 PM

68°

Pack smarter for Greenwich Bay

Useful gear categories for this kind of water spot. These links open Amazon search results so you can compare current options.

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Water ShoesA flexible default for slick docks, rough entries, and hot pavement.

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Quick-Dry TowelEasy to pack and useful after swims, spray, or surprise rain.

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Reef-Safe SunscreenA smart baseline for exposed water days.

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Dry BagKeeps clothes and small essentials separated from wet gear.

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Frequently asked questions

Where is Greenwich Bay?: Greenwich Bay is a bay in Rhode Island.
What is the water temperature at Greenwich Bay?: As of August 22, 2026, the water temperature at Greenwich Bay in Rhode Island is 73°F (23°C), measured by NOAA buoy CPTR1, 4.6 miles away.
Can you swim at Greenwich Bay?: Comfortable for a swim today: water temperature is 73°F, within the comfortable 70–86°F range. Checked August 22, 2026.

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Right Now

Not ideal for outdoor activities today

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:

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Location & Contact

Rhode Island

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