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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in North Spit, Humboldt Bay, CA.
Next low tide : in 1h 30m at 9:21 am (-0.3 ft)
Next high tide : 4:19 pm (5.6 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:51 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #9418767
Common Questions About Tides

North Spit, Humboldt Bay, CA Tides - Sep 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:546.53:117.28:480.99:330.46:447:48Waning Gibbous1Sun
2Mon3:515.93:567.09:321.610:300.66:457:47Waning Gibbous2Mon
3Tue4:535.44:456.710:212.211:320.86:467:45Third Quarter3Tue
4Wed6:025.05:396.411:182.86:477:43Third Quarter4Wed
5Thu7:204.86:406.212:380.912:253.16:487:42Third Quarter5Thu
6Fri8:374.97:436.11:451.01:383.26:497:40Third Quarter6Fri
7Sat9:385.18:436.12:460.92:443.16:507:38Waning Crescent7Sat
8Sun10:235.39:376.23:380.73:392.86:517:37Waning Crescent8Sun
9Mon10:585.510:246.44:210.64:252.46:527:35Waning Crescent9Mon
10Tue11:295.811:066.54:580.55:062.16:537:33Waning Crescent10Tue
11Wed11:586.011:476.55:320.55:431.76:547:32New Moon11Wed
12Thu12:276.26:040.66:201.46:557:30New Moon12Thu
13Fri12:266.512:566.46:350.76:561.16:567:28New Moon13Fri
14Sat1:056.31:256.67:061.07:340.96:577:27New Moon14Sat
15Sun1:466.11:556.77:381.38:130.76:587:25Waxing Crescent15Sun
16Mon2:295.92:276.78:111.78:570.66:597:23Waxing Crescent16Mon
17Tue3:185.63:036.78:472.19:460.67:007:22Waxing Crescent17Tue
18Wed4:145.33:466.79:292.510:420.67:017:20First Quarter18Wed
19Thu5:195.04:416.610:212.911:460.57:027:18First Quarter19Thu
20Fri6:334.95:476.511:313.17:037:17First Quarter20Fri
21Sat7:465.17:016.512:540.412:523.17:047:15First Quarter21Sat
22Sun8:505.48:146.62:010.22:092.77:047:13Waxing Gibbous22Sun
23Mon9:435.99:216.83:010.03:162.17:057:12Waxing Gibbous23Mon
24Tue10:296.410:227.03:54-0.14:141.47:067:10Waxing Gibbous24Tue
25Wed11:126.811:187.14:43-0.15:070.77:077:08Full Moon25Wed
26Thu11:527.25:280.05:560.27:087:06Full Moon26Thu
27Fri12:117.012:317.56:110.36:44-0.27:097:05Full Moon27Fri
28Sat1:036.91:097.56:530.77:31-0.47:107:03Full Moon28Sat
29Sun1:546.61:487.57:351.28:18-0.47:127:01Waning Gibbous29Sun
30Mon2:456.22:287.28:171.89:06-0.27:137:00Waning Gibbous30Mon
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 12:50 pm — 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 80% 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 (80% 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