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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in North Spit, Humboldt Bay, CA.
Next low tide : 9:21 am (-0.3 ft)
Next high tide : in 5h 23m at 2:27 am (6.2 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waning Gibbous (87% illuminated)
Tide Station Location : Station #9418767
Common Questions About Tides

North Spit, Humboldt Bay, CA Tides - Jul 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:435.010:017.54:10-0.33:412.35:498:52Waning Crescent1Tue
2Wed11:405.210:467.54:59-0.74:342.55:498:52Waning Crescent2Wed
3Thu12:295.45:43-1.05:232.65:508:51New Moon3Thu
4Fri1:125.66:25-1.16:092.65:518:51New Moon4Fri
5Sat12:107.31:525.67:04-1.06:532.65:518:51New Moon5Sat
6Sun12:507.12:295.77:41-0.97:372.65:528:51Waxing Crescent6Sun
7Mon1:296.83:055.78:18-0.68:202.65:528:50Waxing Crescent7Mon
8Tue2:086.43:415.78:53-0.29:062.75:538:50Waxing Crescent8Tue
9Wed2:506.04:195.79:290.29:552.65:548:50Waxing Crescent9Wed
10Thu3:355.54:575.810:050.610:502.55:548:49Waxing Crescent10Thu
11Fri4:265.05:385.910:431.111:512.45:558:49First Quarter11Fri
12Sat5:284.66:206.011:251.65:568:48First Quarter12Sat
13Sun6:394.37:056.212:562.012:132.15:578:48First Quarter13Sun
14Mon7:564.27:526.51:581.61:082.55:578:47First Quarter14Mon
15Tue9:114.48:396.82:551.02:082.75:588:47Waxing Gibbous15Tue
16Wed10:154.69:277.13:450.43:062.85:598:46Waxing Gibbous16Wed
17Thu11:095.010:147.54:32-0.34:012.86:008:45Waxing Gibbous17Thu
18Fri11:575.411:027.75:16-0.84:532.66:018:45Full Moon18Fri
19Sat12:425.76:00-1.25:442.46:018:44Full Moon19Sat
20Sun1:256.06:43-1.56:342.16:028:43Full Moon20Sun
21Mon12:387.92:076.37:26-1.57:261.96:038:42Waning Gibbous21Mon
22Tue1:287.72:516.58:09-1.38:201.76:048:42Waning Gibbous22Tue
23Wed2:217.23:356.78:53-0.99:181.56:058:41Waning Gibbous23Wed
24Thu3:176.74:226.99:39-0.310:201.46:068:40Waning Gibbous24Thu
25Fri4:196.05:117.010:270.411:281.26:078:39Third Quarter25Fri
26Sat5:295.46:037.111:191.26:088:38Third Quarter26Sat
27Sun6:474.96:587.112:391.012:171.86:098:37Third Quarter27Sun
28Mon8:104.87:547.11:500.61:212.36:108:36Waning Crescent28Mon
29Tue9:304.98:507.22:560.32:262.76:108:35Waning Crescent29Tue
30Wed10:375.19:427.23:530.03:272.86:118:34Waning Crescent30Wed
31Thu11:295.310:317.24:42-0.34:222.76:128:33Waning Crescent31Thu
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 5:54 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 spring phase. Tonight's moon is 87% 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 near their weekly maximum.

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 Waning Gibbous (87% illuminated). This places North Spit, Humboldt Bay, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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