Tides Today & Tomorrow in North Spit, Humboldt Bay, CA

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in North Spit, Humboldt Bay, CA.
Next low tide (tomorrow) : in 2h 23m at 11:32 pm (2.2 ft)
Next high tide : 5:13 am (5.3 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9418767
Common Questions About Tides

North Spit, Humboldt Bay, CA Tides - Dec 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:096.03:106.09:333.29:550.47:214:50Third Quarter1Tue
2Wed5:006.04:115.410:423.110:461.07:224:49Third Quarter2Wed
3Thu5:496.15:214.911:552.911:381.57:234:49Third Quarter3Thu
4Fri6:366.36:364.71:032.47:244:49Third Quarter4Fri
5Sat7:186.57:484.712:301.92:001.97:254:49Waning Crescent5Sat
6Sun7:576.78:524.81:212.32:471.37:264:49Waning Crescent6Sun
7Mon8:356.99:485.02:092.53:280.87:274:49Waning Crescent7Mon
8Tue9:117.210:365.32:532.74:060.37:284:49Waning Crescent8Tue
9Wed9:467.411:195.53:352.94:43-0.17:294:49New Moon9Wed
10Thu10:227.54:163.05:19-0.57:304:49New Moon10Thu
11Fri12:015.710:57 AM7.64:553.15:56-0.77:304:49New Moon11Fri
12Sat12:415.811:34 AM7.65:363.16:33-0.97:314:49New Moon12Sat
13Sun1:235.912:127.56:183.27:12-0.97:324:49Waxing Crescent13Sun
14Mon2:056.012:547.37:043.27:53-0.77:334:49Waxing Crescent14Mon
15Tue2:496.11:426.97:563.18:36-0.47:334:50Waxing Crescent15Tue
16Wed3:356.22:376.48:563.09:220.07:344:50Waxing Crescent16Wed
17Thu4:226.43:435.910:042.810:130.57:354:50First Quarter17Thu
18Fri5:126.75:005.411:182.411:081.17:354:51First Quarter18Fri
19Sat6:037.16:235.112:311.77:364:51First Quarter19Sat
20Sun6:547.47:465.112:071.61:381.07:364:51Waxing Gibbous20Sun
21Mon7:447.89:005.31:072.02:380.27:374:52Waxing Gibbous21Mon
22Tue8:348.110:055.62:072.43:31-0.57:374:52Waxing Gibbous22Tue
23Wed9:228.311:015.93:042.64:20-1.07:384:53Full Moon23Wed
24Thu10:098.411:516.13:582.75:06-1.37:384:54Full Moon24Thu
25Fri10:548.34:492.75:49-1.37:394:54Full Moon25Fri
26Sat12:376.311:39 AM8.05:382.86:32-1.27:394:55Full Moon26Sat
27Sun1:216.312:227.76:272.87:12-0.97:394:55Waning Gibbous27Sun
28Mon2:036.31:057.27:152.97:52-0.57:404:56Waning Gibbous28Mon
29Tue2:446.31:506.68:052.98:320.17:404:57Waning Gibbous29Tue
30Wed3:256.32:376.08:593.09:120.77:404:58Waning Gibbous30Wed
31Thu4:076.33:305.49:592.99:571.27:404:58Third Quarter31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9418767)

Common Questions About North Spit, Humboldt Bay, CA Tides

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What time does the tide turn (slack tide) in North Spit, Humboldt Bay, CA today?

Slack tide in North Spit, Humboldt Bay, CA is approximately 2:22 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in North Spit, Humboldt Bay, CA?

North Spit, Humboldt Bay, CA is currently in a transitional phase. Tonight's moon is 38% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are North Spit, Humboldt Bay, CA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for North Spit, Humboldt Bay, CA?

Tide predictions for North Spit, Humboldt Bay, CA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for North Spit, Humboldt Bay, CA?

Tide data for North Spit, Humboldt Bay, CA is sourced from NOAA Station #9418767. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9418767.

What is the moon phase in North Spit, Humboldt Bay, CA tonight?

Tonight the moon over North Spit, Humboldt Bay, CA is First Quarter (38% illuminated). This places North Spit, Humboldt Bay, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA