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

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in North Spit, Humboldt Bay, CA.
Next low tide (tomorrow) : 4:53 am (-0.1 ft)
Next high tide : in 3h 22m at 9:28 pm (6.8 ft)
Sunset today : 8:39 pm
Sunrise tomorrow : 6:07 am
Moon phase : Waxing Gibbous (87% illuminated)
Tide Station Location : Station #9418767
Common Questions About Tides

North Spit, Humboldt Bay, CA Tides - May 1970

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:575.59:476.53:031.63:090.36:158:12Waning Crescent1Fri
2Sat10:075.510:246.94:010.63:570.76:138:13Waning Crescent2Sat
3Sun11:105.511:017.34:53-0.24:411.26:128:14Waning Crescent3Sun
4Mon12:075.55:40-0.95:241.76:118:15New Moon4Mon
5Tue1:015.56:25-1.36:062.16:108:16New Moon5Tue
6Wed12:127.51:525.47:08-1.56:472.56:098:17New Moon6Wed
7Thu12:487.42:425.37:50-1.47:292.96:078:18Waxing Crescent7Thu
8Fri1:267.13:325.18:34-1.28:123.26:068:19Waxing Crescent8Fri
9Sat2:056.74:234.99:18-0.88:583.46:058:20Waxing Crescent9Sat
10Sun2:476.35:174.810:05-0.49:523.56:048:21Waxing Crescent10Sun
11Mon3:365.86:124.710:550.010:583.56:038:22First Quarter11Mon
12Tue4:335.47:034.811:470.36:028:23First Quarter12Tue
13Wed5:394.97:485.012:153.312:390.76:018:24First Quarter13Wed
14Thu6:514.68:265.31:302.91:291.06:008:25First Quarter14Thu
15Fri8:044.58:595.72:332.32:151.35:598:26Waxing Gibbous15Fri
16Sat9:124.59:316.13:241.62:581.65:588:27Waxing Gibbous16Sat
17Sun10:144.610:026.54:090.93:391.95:578:28Waxing Gibbous17Sun
18Mon11:104.810:336.84:490.14:182.25:568:29Waxing Gibbous18Mon
19Tue12:025.05:29-0.54:582.55:558:30Full Moon19Tue
20Wed12:525.16:09-1.15:382.85:558:31Full Moon20Wed
21Thu1:415.26:50-1.56:192.95:548:32Full Moon21Thu
22Fri12:207.52:315.27:34-1.77:033.15:538:33Full Moon22Fri
23Sat1:037.53:225.28:20-1.87:523.15:528:34Waning Gibbous23Sat
24Sun1:507.44:145.29:08-1.78:483.25:528:35Waning Gibbous24Sun
25Mon2:437.05:075.29:59-1.49:533.15:518:36Waning Gibbous25Mon
26Tue3:436.56:005.410:52-1.011:092.95:508:36Third Quarter26Tue
27Wed4:535.96:505.811:46-0.55:508:37Third Quarter27Wed
28Thu6:105.37:376.212:302.412:400.15:498:38Third Quarter28Thu
29Fri7:324.98:216.61:471.61:340.75:488:39Waning Crescent29Fri
30Sat8:534.79:037.02:530.82:271.35:488:40Waning Crescent30Sat
31Sun10:094.79:447.33:510.03:181.95:478:40Waning Crescent31Sun
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 1:10 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 Waxing 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