Rhode Island boating conditions
Narragansett Bay marine forecast
A practical comparison of boating conditions from Newport and Jamestown north toward Bristol and Wickford.
For the rest of today: Narragansett Bay S 10–15 kt, gusts 20, seas 2–3 ft. Best day this week: Fri, Nov 6. Fri, Nov 6 is the mildest day in the forecast. It is still Nope on at least one period.
Forecast checked Fri, Nov 6, 2026, 5:04 AM EST · National Weather Service coastal waters forecast issued 4:04 AM EST · harbor briefings updated 5:04 AM EST · water temperature updated 4:54 AM EST
Right now
Narragansett Bay conditions today
Each flag is that harbor's live call. Zone labels use the coastal waters forecast for the rest of today.
- Block Island
- Buzzards BayS 18 kt gust 19
NWS coastal waters forecast
Narragansett Bay forecast by zone
Each period is scored with the same limits as the harbor pages: 15 kt wind, 20 kt gusts, 2.5 ft seas. Thunderstorms or reduced visibility turn a period to Caution.
From the mouth north toward Bristol
No advisoryOfficial NWS text for each zone
Narragansett Bay (ANZ236)
Today: S winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Patchy fog. Rain. A chance of tstms this morning, then a slight chance of tstms this afternoon. Vsby 1 NM or less.
Tonight: S winds 10 to 15 kt, becoming SW 5 to 10 kt after midnight. Waves 2 to 3 ft. Patchy fog. Rain. A chance of tstms after midnight. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight.
Sat: NW winds 5 to 10 kt. Waves around 2 ft. Patchy fog in the morning. Rain likely in the morning with vsby 1 to 3 NM.
Sat Night: W winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Waves 2 to 3 ft. A chance of rain in the evening.
Sun and Sun Night: W winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft.
Mon through Tue Night: W winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 4 ft. Winds and waves higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
Five-day trend
Wind and seas across Narragansett Bay
Day and night bars for each zone, in the same wind and seas chart style as a harbor page. A missing bar is a period the forecast did not quantify.
Narragansett Bay
Dashed limit on the harbor pages: 15 kt. Bars are the top of the forecast range.
Dashed limit on the harbor pages: 2.5 ft. Bars are the top of the forecast range.
Harbor-level briefings
Compare conditions around Narragansett Bay
Lower bay
Harbors near the bay entrance and island passages.
A prominent sailing harbor at the mouth of Narragansett Bay with dense moorings and active commercial traffic.
12 ktseas 5 ft60°F water
Current conditions are outside your 15 kt wind or 2.5 ft seas limit.
A Conanicut Island destination between the East and West Passages with several distinct anchorages.
12 ktseas 5 ft60°F water
Flood Watch is active now until Sat 10 AM.
A sheltered western Narragansett Bay harbor with winding marked approaches, marine services, and a historic village waterfront inside.
18 ktseas 3 ft0°F water
Flood Watch is active now until Sat 10 AM.
Upper bay
More protected waters north of the main island passages.
Tide charts
Tide charts around Narragansett Bay
- High tide 5:14 AM · 4.19 ft · Low tide 11:28 AM · 0.26 ft · High tide 5:36 PM · 3.57 ft · Low tide 11:11 PM · 0.18 ft59.4°Fwater
- High tide 5:28 AM · 4.94 ft · Low tide 10:57 AM · 0.42 ft · High tide 5:51 PM · 4.34 ft · Low tide 11:00 PM · 0.17 ft58.1°Fwater
The regional picture
One body of water. More than one kind of boat day.
Narragansett Bay changes character between its exposed mouth, island passages, and more protected upper reaches. That makes it a good place to compare the broad marine forecast with the conditions closest to the route you actually have in mind.
The destination pages below combine the latest available wind, wave, tide, observation, and advisory inputs for their locations. Use them together when a day involves more than one part of the bay.
Before leaving the dock
Three useful checks for Narragansett Bay
- Compare Newport and Jamestown with upper-bay harbors when your route spans the bay.
- Check tide and current timing around island passages and the bay entrance.
- A protected berth is not a proxy for conditions at the mouth of the bay.
What this regional guide can - and cannot - do
These pages make it easier to compare the latest available forecast and observation inputs around Narragansett Bay. They are planning aids, not navigation or safety guarantees. Check the official coastal waters forecast, current observations and notices, local conditions, and your own boat and crew before departure.
See how Boat or Nope builds each call