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

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in North Spit, Humboldt Bay, CA.
Next low tide : in 2h 17m at 8:44 am (0.3 ft)
Next high tide : 3:25 pm (6.2 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 6:14 am
Moon phase : Waning Gibbous (83% illuminated)
Tide Station Location : Station #9418767
Common Questions About Tides

North Spit, Humboldt Bay, CA Tides - Sep 1959

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:525.911:267.05:200.05:222.06:437:50New Moon1Tue
2Wed12:256.25:56-0.16:041.66:447:48New Moon2Wed
3Thu12:107.012:586.56:32-0.16:471.16:457:47New Moon3Thu
4Fri12:557.01:336.87:080.17:310.86:467:45New Moon4Fri
5Sat1:426.82:097.07:460.58:190.56:477:44Waxing Crescent5Sat
6Sun2:326.42:487.28:250.99:100.46:487:42Waxing Crescent6Sun
7Mon3:286.03:327.29:081.510:070.36:497:40Waxing Crescent7Mon
8Tue4:305.54:227.19:572.011:100.36:507:39First Quarter8Tue
9Wed5:425.25:217.010:562.56:517:37First Quarter9Wed
10Thu7:015.16:286.812:190.312:072.86:527:35First Quarter10Thu
11Fri8:185.27:396.81:300.21:252.96:537:34Waxing Gibbous11Fri
12Sat9:245.58:476.82:360.12:392.66:547:32Waxing Gibbous12Sat
13Sun10:175.99:496.93:340.03:422.26:557:30Waxing Gibbous13Sun
14Mon11:026.210:447.04:24-0.14:371.76:567:29Waxing Gibbous14Mon
15Tue11:416.511:336.95:09-0.15:251.36:577:27Full Moon15Tue
16Wed12:166.75:490.16:090.96:587:25Full Moon16Wed
17Thu12:196.812:496.86:270.46:510.76:597:23Full Moon17Thu
18Fri1:036.61:216.87:030.87:310.67:007:22Full Moon18Fri
19Sat1:456.31:526.77:381.38:120.67:007:20Waning Gibbous19Sat
20Sun2:285.92:246.68:121.78:530.77:017:18Waning Gibbous20Sun
21Mon3:135.62:586.48:472.29:370.87:027:17Waning Gibbous21Mon
22Tue4:035.23:366.29:252.710:251.07:037:15Waning Gibbous22Tue
23Wed4:594.94:206.010:083.111:201.27:047:13Third Quarter23Wed
24Thu6:044.85:155.811:053.47:057:12Third Quarter24Thu
25Fri7:154.76:205.712:221.212:173.57:067:10Third Quarter25Fri
26Sat8:204.97:275.71:261.21:333.47:077:08Third Quarter26Sat
27Sun8:125.27:305.91:241.01:383.06:086:07Waning Crescent27Sun
28Mon8:545.68:276.12:140.82:312.56:096:05Waning Crescent28Mon
29Tue9:316.09:206.42:580.63:181.96:106:03Waning Crescent29Tue
30Wed10:066.410:096.63:390.54:021.26:116:01New Moon30Wed
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 12:04 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 83% 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 (83% 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