TideAhead
AlaskaNOAA 9459085

Chiachi Island (east side) Tides & Coastal Conditions

Official tide predictions, weather observations and forecasts, marine-grid context, astronomy, and jurisdiction-specific rules for this NOAA station.

All official layers availableUpdated 8:22 PM AKDT

Current Conditions

Tide predictions are relative to MLLW. NWS point and marine-grid forecasts can differ at exposed shorelines.

Derived tide now
3.4ft
rising · Between official extrema · Station 9459085
Next high tide
1:12 AM
Thu, Sep 247.2 ft
Next low tide
7:56 AM
Thu, Sep 240.5 ft
Current Weather
47°F

Mostly Cloudy

Model

S 10 mph

Model
Tide Forecast
NOAA Chiachi Island (east side) · Station 9459085 · MLLW datum · local time
Subordinate station · NOAA reference station 9457292
currentDerived continuous curve
NOAA provides official high/low predictions for this subordinate station. The dashed curve and tide-now height are bounded half-cosine estimates between adjacent official extrema; no values are extrapolated beyond them.
-1 ft1.5 ft4 ft6.5 ft9 ft7.2 ft0.5 ft6.8 ft1.9 ft7.5 ft0.3 ft7.4 ft0.8 ftWed, Sep 238:01 PMThu, Sep 247:56 AMThu, Sep 247:54 PMFri, Sep 257:47 AMFri, Sep 257:37 PM
Dots are official NOAA high/low predictions. The dashed line is a bounded half-cosine estimate between adjacent extrema; it is not an official six-minute NOAA prediction and is never extrapolated beyond those points. Times are shown in the place's local timezone.

Weather, Light & Marine

Conditions that affect shoreline access, small craft, fishing and surf.

Air

Temperature47°FModel

Humidity78%Model

PressureUnavailable

Wind

SustainedS 10 mphModel

Gusts13 mphModel

Rain chance13%Model

Marine

Wave height0.0 ftModel

DirectionCalm / No DirectionModel

WaterUnavailable
Sun & Moon

Sunrise8:24 AM

Sunset8:32 PM

MoonWaxing Gibbous

Hourly Forecast
Model
National Weather Service point forecast when the live feed is available.
Local date & timeConditionsTempWindGustsRain
Wed, Sep 23, 20268:00 PMMostly Cloudy47°FS 10 mph13 mph13%
Wed, Sep 23, 20269:00 PMMostly Cloudy48°FS 10 mph13 mph13%
Wed, Sep 23, 202610:00 PMChance Light Rain48°FSE 10 mph12 mph29%
Wed, Sep 23, 202611:00 PMChance Light Rain49°FSE 10 mph12 mph29%
Thu, Sep 24, 202612:00 AMChance Light Rain49°FSE 10 mph12 mph29%
Thu, Sep 24, 20261:00 AMLight Rain Likely50°FSE 15 mph22 mph64%
Thu, Sep 24, 20262:00 AMLight Rain Likely50°FSE 15 mph22 mph64%
Thu, Sep 24, 20263:00 AMLight Rain Likely50°FSE 15 mph22 mph64%
Thu, Sep 24, 20264:00 AMRain51°FSE 25 mph35 mph95%
Thu, Sep 24, 20265:00 AMRain51°FSE 25 mph35 mph95%
Thu, Sep 24, 20266:00 AMRain51°FSE 25 mph35 mph95%
Thu, Sep 24, 20267:00 AMHeavy Rain52°FSE 30 mph45 mph100%

Fishing, Crabbing & Surfing Analysis

These scores use the available tide, wind, and marine data. They do not predict catches, report local activity, or replace safety notices.

84/100 · Very good
Fishing
Environmental planning guidance, not a catch guarantee.

Best planning window

2 hours around the next tide change

  • Manageable wind10 mph sustained wind
  • Mostly dry13% precipitation chance
  • Moving waterA rising tide can improve nearshore feeding activity
69/100 · Good
Crabbing
Conditions are secondary to seasons, closures and safety.

Best planning window

Near slack water, if the marine area is open

  • Regulations requiredConfirm the marine area is open before setting gear
  • Moderate tidal exchange5.9 ft range in the next cycle
23/100 · Poor
Surfing
Offshore model guidance with nearshore uncertainty.

Best planning window

Compare swell direction, local wind and tide before leaving

  • Limited swell0.0 ft NWS forecast waves
  • Wave period not publishedThe surf score uses available NWS wave height and local wind only
  • Nearshore uncertaintyOffshore model conditions are not the same as breaking-wave height at this beach
Alaska Department of Fish and Game fishing rulesAlaska · state or territoryNOAA Fisheries federal recreational fishing resourcesU.S. federal waters · federalNational Weather Service rip-current safetyUnited States · safety
Nearby NOAA Tide Stations
Official station locations from the national NOAA CO-OPS tide-prediction catalog.

Kupreanof Harbor, Paul Island

NOAA 9459145 · AK

10.2 mi

Mitrofania Island

NOAA 9459016 · AK

11.5 mi

Ivanof Bay

NOAA 9459181 · AK

15.5 mi

Hump Island, Kuiukta Bay

NOAA 9458964 · AK

27.1 mi

Dent Point, Stepovak Bay

NOAA 9459281 · AK

30.4 mi

Castle Bay, Northwest Arm

NOAA 9458907 · AK

39.7 mi

Sources And Confidence

NOAA CO-OPS official high/low tide predictions at Chiachi Island (east side)official-forecast

Fetched Wed, Sep 23 at 8:22 PM

National Weather Service hourly forecastofficial-forecast

Fetched Wed, Sep 23 at 8:22 PM

National Weather Service coastal marine gridofficial-forecast

Fetched Wed, Sep 23 at 8:22 PM

U.S. Naval Observatory astronomical applicationsofficial-calculation

Fetched Wed, Sep 23 at 8:22 PM

Not for navigation. Conditions can change faster than source update intervals. Always check local warnings, closures and on-site conditions.