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

TIDE TIMES for Saturday, July 25, 2026
The tide is currently falling in North Spit, Humboldt Bay, CA.
Next low tide : in 6h 05m at 4:10 am (0.2 ft)
Next high tide : 11:25 am (4.7 ft)
Sunset today : 8:40 pm
Sunrise tomorrow : 6:06 am
Moon phase : Waxing Gibbous (80% illuminated)
Tide Station Location : Station #9418767
Common Questions About Tides

North Spit, Humboldt Bay, CA Tides - Oct 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:195.99:576.63:390.13:572.07:137:00Waxing Gibbous1Fri
2Sat10:536.510:556.84:230.14:481.07:146:58Waxing Gibbous2Sat
3Sun11:277.111:516.85:050.25:370.17:156:56Full Moon3Sun
4Mon12:027.65:450.66:26-0.67:166:55Full Moon4Mon
5Tue12:476.712:398.06:251.17:14-1.17:176:53Full Moon5Tue
6Wed1:426.41:178.17:071.78:04-1.37:186:51Waning Gibbous6Wed
7Thu2:406.11:598.07:502.38:56-1.27:196:50Waning Gibbous7Thu
8Fri3:405.72:457.78:372.89:52-0.87:206:48Waning Gibbous8Fri
9Sat4:475.43:387.29:313.310:53-0.47:216:47Third Quarter9Sat
10Sun6:015.24:416.610:383.611:590.07:226:45Third Quarter10Sun
11Mon7:185.25:546.212:023.77:236:43Third Quarter11Mon
12Tue8:255.47:125.81:080.31:293.47:246:42Third Quarter12Tue
13Wed9:155.68:255.72:110.62:422.97:256:40Waning Crescent13Wed
14Thu9:535.99:285.73:030.73:392.37:266:39Waning Crescent14Thu
15Fri10:246.110:225.73:470.94:241.77:276:37Waning Crescent15Fri
16Sat10:516.411:095.74:241.25:031.17:286:36Waning Crescent16Sat
17Sun11:166.611:535.74:581.55:390.77:296:34New Moon17Sun
18Mon11:406.85:291.96:140.37:316:33New Moon18Mon
19Tue12:355.612:056.95:592.26:480.07:326:31New Moon19Tue
20Wed1:165.612:317.06:292.67:22-0.27:336:30New Moon20Wed
21Thu1:585.512:577.06:583.07:58-0.27:346:28Waxing Crescent21Thu
22Fri2:425.31:266.97:283.38:37-0.27:356:27Waxing Crescent22Fri
23Sat3:305.11:576.88:013.69:20-0.17:366:25Waxing Crescent23Sat
24Sun4:254.92:366.68:393.810:100.17:376:24Waxing Crescent24Sun
25Mon5:264.83:276.39:313.911:060.27:386:23First Quarter25Mon
26Tue6:294.94:356.010:484.07:406:21First Quarter26Tue
27Wed7:265.25:585.812:060.312:203.77:416:20First Quarter27Wed
28Thu8:125.67:225.71:060.41:413.17:426:19First Quarter28Thu
29Fri8:536.18:385.72:020.52:482.27:436:17Waxing Gibbous29Fri
30Sat9:306.79:485.92:530.73:441.17:446:16Waxing Gibbous30Sat
31Sun9:077.39:516.02:401.03:360.16:455:15Waxing Gibbous31Sun
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 7:47 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 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 Waxing 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