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Tide data
Marine conditions
Check NOAA marine forecasts before heading out. Conditions can change quickly.
LIVE OFFLINE NWLON PRIMARY TSUNAMI SENSOR ARCTIC Harmonic Subordinate Historical BUOY
— ft
⚠ DATA NOTE
View station detail page → NOW
12 AM4812 PM4812
Crossing Windows ( )
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No crossings at this level today.
NOAA CO-OPS ↗ — fetched at …
Today's Tides
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NOW
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NOAA CO-OPS ↗ — predictions as of …
Station
Region
Phase
Datum
MLLW
Coastal Conditions
Water Temp
—
Fahrenheit · Surface
Data when available
Visibility
—
Nautical miles
Check forecast
Wind
—
Knots
N
Check NOAA
Pressure
—
Millibars
When available
Wave Height
—
Feet
Marine forecast
Datum Ref
MLLW
Mean Lower Low Water — all heights above this reference
Chart depth + water level = actual depth
NOAA datums for this station Moon Phase
🌔
—
Phase · Rise/set in almanac
Tides vary with moon phase
Sun & Daylight
Rise 8:02 AM
11H 18M DAYLIGHT
Set 7:20 PM Coastal Intel
Tidal Range
19.0ft
Kachemak Bay is one of Alaska's largest tidal ranges
Slack Water
—
Best window for clamming & diving
Best Passage Today
—
Beach Access / Clamming
Clam Gulch
OPEN
Low: 2:59 PM (-0.4 ft)
Mud Bay
~OPEN
Partial access 2–4 PM
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