Know the Tide

Know the tide.

West Coast

HUMBOLDT BAY (North Spit)

California · NOAA station 9418767 · Tide predictions

· Pacific Time · Feet / MLLW (mean lower low water)

40.7669, -124.2173

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48-hour outlook

Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.

The next seven days

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H = high tide · L = low tide · highs & lows in local time

On the water nearby

Humboldt Bay, North Spit, CA (168) buoy · 12 mi NW · Station 46244
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Nearby tide stations

Plan ahead

2027 tide extremes for this station

Highest predicted high tide: 8.6 ft — Fri Jan 22 · 10:52 AM

Lowest predicted low tide: -2.2 ft — Sun Jun 6 · 7:50 AM

Biggest single-day swing: 10.4 ft on Fri Jan 22

Best daytime minus tides of 2027
DateLow tideHeight
Sun Jun 67:50 AM-2.2 ft
Mon Jul 57:32 AM-2.1 ft
Sat Jun 57:02 AM-2.1 ft
Mon Jun 78:37 AM-2.1 ft
Tue Jul 68:17 AM-1.9 ft
Sat May 88:03 AM-1.8 ft
Fri Jan 225:52 PM-1.8 ft
Tue Jun 89:26 AM-1.7 ft
Sun May 98:52 AM-1.7 ft
Tue Dec 146:27 PM-1.7 ft

179 minus tides (below 0 ft) are predicted here in 2027. The table shows up to the 10 lowest that fall between 7 AM and 7 PM — the ones worth planning a clam dig or tidepool walk around.

About this station

HUMBOLDT BAY (North Spit) is one of NOAA's reference tide stations — its predictions are computed directly from harmonic analysis of water levels observed here, and other nearby stations are calculated from it.

Mixed semidiurnal tides — two unequal highs and two unequal lows a day — with ranges growing as you head north. Harbor entrances feel the swell as much as the tide.

Diurnal range6.8 ft
Mean range4.9 ft
RegionWest Coast
NOAA chart18622
Station since1977