New Haven Harbor
Green light. The water is giving you a comfortable window.
Patchy Smoke · 81° · 5 kt wind1 PM–5 PM is the best 4-hour window inside your selected limits.
For Pursuit 235 · 4 hours · limits 15 kt / 2.5 ftMake it yours, skipper
The flag re-reads the water for your boat and your day.
Your boat
Time on the water
Your comfort line: 15 kt wind · 2.5 ft seas
Pick your day
Seven days, one honest flag each.
Showing hourly detail for today. Each flag uses that day's own forecast.
Daylight forecast
Buoy-based estimate
3 turns today
NDBC 44025
NDBC 44025 · observed 7/17/2026, 1:10:00 PM EDT
How the day develops
Wind, waves, and tide stay aligned to the same daylight hours.
Sustained wind in knots. The dashed line is your selected boat limit.
Wave height from the NWS marine grid, with clearly identified buoy-based estimates for gaps.
Predicted water level in feet relative to MLLW from NOAA CO-OPS.
Hour by hour
Daylight only. The useful part of your day.
View exact hourly readings
How this forecast is built
5 of 5 inputs reporting. Stations, locations, and roles are shown below.
Resolved directly from the destination coordinates.
The buoy fills wave gaps and supplies observations.
Predicted heights and high/low timing.
Latest available buoy observation.
Source geography
Where these readings come from
Dashed lines connect this destination to the stations contributing marine, tide, and aviation context.
- Forecast pointNew Haven HarborNWS forecast point
- BuoyLong Island · 4402562.2 NM away
- Marine gridCentral Long Island Sound · 4403913.8 NM away
- Tide gaugeNew London · 846149037.1 NM away
- AviationSikorsky Memorial · KBDR12.3 NM away
NWS hourly forecast
RoleSupplies the hourly wind, sky, temperature, and precipitation forecast at this destination.
- forecast point
- New Haven Harbor · new-haven-harbor
- Coordinates
- 41.2730° N, 72.9020° W
Why this sourceResolved live from the destination coordinates, so it represents the selected harbor rather than a nearby city.
Data timingForecast grid updated · 4 hr ago
ConfidenceThe forecast is resolved directly at this location.
Hourly wind, weather, temperature, and precipitation forecast resolved from the selected latitude/longitude.
NWS coastal marine grid
RoleSupplies forecast wave heights, which Boat or Nope uses before buoy-based estimates when available.
- marine grid point
- Central Long Island Sound · 44039
- Distance
- 13.8 NM from destination
- Coordinates
- 41.1380° N, 72.6550° W
Why this sourceResolved on the coastal marine grid at 44039, the selected marine reference point for this destination.
Data timingMarine grid updated · 4 hr ago
ConfidenceThe selected source is within 25 NM of the destination.
Wave-height forecast resolved at marine reference 44039. Used before Boat or Nope's observed-buoy fallback when the grid reports usable wave heights.
NDBC 44025
RoleChecks recent observed wind, waves, and water temperature and helps fill gaps when the marine grid has no usable wave value.
- buoy
- Long Island · 44025
- Distance
- 62.2 NM from destination
- Coordinates
- 40.2580° N, 73.1750° W
Why this sourceThe configured buoy 44039 did not report usable observations, so 44025 was selected from nearby candidates.
Data timingLatest buoy observation · 47 min ago
ConfidenceThe source is 62.2 NM away, so local conditions may differ.
Automatic fallbackConfigured 44039; selected 44025 after checking 44039, 44025.
Selected catalog buoy, 62.2 NM from the selected location. Reports observed wind, waves, and water temperature when those sensors are available.
CO-OPS 8461490
RoleSupplies predicted tide heights and high/low timing for each forecast day.
- tide station
- New London · 8461490
- Distance
- 37.1 NM from destination
- Coordinates
- 41.3550° N, 72.0870° W
Why this sourceThe configured tide gauge 8467150 did not return complete predictions, so 8461490 was selected from nearby candidates.
Data timingPredictions generated for each selected day
ConfidenceThe source is 37.1 NM away, so local conditions may differ.
Automatic fallbackConfigured 8467150; selected 8461490 after checking 8467150, 8461490.
Selected catalog tide station, 37.1 NM from the selected location. Tide predictions and high/low events in feet relative to MLLW for the available forecast days.
AviationWeather KBDR
RoleAdds nearby observed and forecast gust context from METAR and TAF reports.
- aviation station
- Sikorsky Memorial · KBDR
- Distance
- 12.3 NM from destination
- Coordinates
- 41.1600° N, 73.1300° W
Why this sourceChosen from the nearest aviation candidates that returned a current METAR or TAF report.
Data timingLatest METAR observation · 1 hr ago
ConfidenceThe selected source is within 25 NM of the destination.
Nearest aviation candidates: KBDR 12.3 NM, KISP 30.2 NM, KHTO 34.9 NM.
Hourly seas: NWS coastal marine-grid wave height is preferred when available. Gaps fall back to the latest NDBC wave observation projected with forecast wind; fallback values are planning estimates, not NOAA wave forecasts.
Verdict: Go, Caution, No-Go, or Incomplete is derived from the boat limits you select for wind and seas.
Source retrieval16 reused · 7 refreshed · 1 known outage skipped
Updated 7/17/2026, 1:57:14 PM EDT · Planning context, not certified navigation.
Local source coverage
Planning a boating day at New Haven Harbor
A broad commercial harbor on central Long Island Sound with protected waters behind its breakwaters.
This harbor in Connecticut uses Central Long Island Sound (44039) for marine observations, Bridgeport (8467150) for tide predictions, and Sikorsky Memorial (KBDR) for nearby aviation weather context.
This location is part of Boat or Nope's reviewed launch catalog and remains subject to automated source-health checks.Nearby harbors