Expanded-coverage previewThis location uses healthy nearby sources with broader station distances. The exact stations and distances are shown below.

named water · New Hampshire

Oyster River

Doable, but keep one eye on the sky and the other on the chop.

Slight Chance Showers And Thunderstorms · 79° · 9 kt windNDBC 44030 · CO-OPS 8418911 · NWS + KPSM
Today's callCautionhigh confidence

3 PM–7 PM is the best 4-hour window inside your selected limits.

For Pursuit 235 · 4 hours · limits 15 kt / 2.5 ft

Make 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.

Peak wind13 kt

Daylight forecast

Peak seas2 ft

6 NWS grid hours

TideLow 7 AM

4 turns today

Observed now14 kt

NDBC 44030

Water temperature65.7 °F

NDBC 44030 · observed 7/15/2026, 7:00:00 AM EDT

How the day develops

Wind, waves, and tide stay aligned to the same daylight hours.

Wind4–13 kt

Sustained wind in knots. The dashed line is your selected boat limit.

Waves2–2 ft

Wave height from the NWS marine grid, with clearly identified buoy-based estimates for gaps.

Tide0–8.3 ft

Predicted water level in feet relative to MLLW from NOAA CO-OPS.

Hour by hour

Daylight only. The useful part of your day.

13 kt2 ft seas
13 kt2 ft seas
13 kt2 ft seas
9 kt2 ft seas
9 kt2 ft seas
4 kt2 ft seas
View exact hourly readings
TimeWindSeasTideSky
3 PM13 kt · G 232 ft · NOAA grid8.3 ft · EbbAreas Of Smoke
4 PM13 kt · G 232 ft · NOAA grid6.14 ft · EbbAreas Of Smoke
5 PM13 kt · G 232 ft · NOAA grid3.55 ft · EbbAreas Of Smoke
6 PM9 kt · G 232 ft · NOAA grid1.25 ft · EbbSlight Chance Showers And Thunderstorms
7 PM9 kt · G 232 ft · NOAA grid-0.01 ft · Low 7 PMMostly Clear
8 PM4 kt · G 232 ft · NOAA grid0.11 ft · Tide turningMostly Clear

How this forecast is built

5 of 5 inputs reporting. Stations, locations, and roles are shown below.

Wind + skyNWS forecast at Oyster River

Resolved directly from the destination coordinates.

WavesNWS marine grid + NDBC 44030

The buoy fills wave gaps and supplies observations.

TideCO-OPS 8418911

Predicted heights and high/low timing.

Water temperatureNDBC 44030 · 65.7°F

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 pointOyster RiverNWS forecast point
  • BuoyWestern Maine Shelf · 4403020.5 NM away
  • Tide gaugeWells · 841891118.4 NM away
  • AviationPortsmouth Intl · KPSM4.1 NM away
Locating forecast sources…
live · forecast
Strong match

NWS hourly forecast

RoleSupplies the hourly wind, sky, temperature, and precipitation forecast at this destination.

forecast point
Oyster River · oyster-river
Coordinates
43.1264° N, 70.8882° W

Why this sourceResolved from the destination coordinates, so it represents the selected harbor rather than a nearby city.

Data timingForecast grid updated · 28 min ago

ConfidenceThe forecast is resolved directly at this location.

Hourly wind, weather, temperature, and precipitation forecast resolved from the selected latitude/longitude.

live · wave forecast
Strong match

NWS coastal marine grid

RoleSupplies forecast wave heights, which Boat or Nope uses before buoy-based estimates when available.

marine grid point
Western Maine Shelf · 44030
Distance
20.5 NM from destination
Coordinates
43.1790° N, 70.4260° W

Why this sourceResolved on the coastal marine grid at NDBC 44030, the selected marine reference point for this destination.

Data timingMarine grid updated · 2 hr ago

ConfidenceThe selected source is within 25 NM of the destination.

Wave-height forecast resolved at NDBC 44030. Used before Boat or Nope's observed-buoy fallback when the grid reports usable wave heights.

live · observed
Strong match

NDBC 44030

RoleChecks recent observed wind, waves, and water temperature and helps fill gaps when the marine grid has no usable wave value.

buoy
Western Maine Shelf · 44030
Distance
20.5 NM from destination
Coordinates
43.1790° N, 70.4260° W

Why this sourceSelected from the catalog as the nearest trusted NDBC marine observation station for Oyster River.

Data timingLatest buoy observation · 1 hr ago

ConfidenceThe selected source is within 25 NM of the destination.

Nearest catalog buoy, 20.5 NM from the selected location. Reports observed wind, waves, and water temperature when those sensors are available.

live · prediction
Strong match

CO-OPS 8418911

RoleSupplies predicted tide heights and high/low timing for each forecast day.

tide station
Wells · 8418911
Distance
18.4 NM from destination
Coordinates
43.3200° N, 70.5630° W

Why this sourceSelected as the nearest trusted CO-OPS prediction station for Oyster River.

Data timingPredictions generated for each selected day

ConfidenceThe selected source is within 25 NM of the destination.

Nearest catalog tide station, 18.4 NM from the selected location. Tide predictions and high/low events in feet relative to MLLW for the available forecast days.

live · observed + forecast
Strong match

AviationWeather KPSM

RoleAdds nearby observed and forecast gust context from METAR and TAF reports.

aviation station
Portsmouth Intl · KPSM
Distance
4.1 NM from destination
Coordinates
43.0779° N, 70.8233° W

Why this sourceChosen from the nearest aviation candidates that returned a current METAR or TAF report.

Data timingLatest METAR observation · 18 min ago

ConfidenceThe selected source is within 25 NM of the destination.

Nearest aviation candidates: KPSM 4.1 NM, KLWM 26.7 NM, KPWM 40.1 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.

Updated 7/16/2026, 3:12:54 PM EDT · Planning context, not certified navigation.

Nearby harbors

Restless? Sail on.