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

TIDE TIMES for Sunday, August 23, 2026
The tide is currently falling in North Spit, Humboldt Bay, CA.
Next low tide : in 2h 39m at 3:37 am (0.6 ft)
Next high tide : 10:53 am (4.8 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 6:35 am
Moon phase : Waxing Gibbous (82% illuminated)
Tide Station Location : Station #9418767
Common Questions About Tides

North Spit, Humboldt Bay, CA Tides - Oct 1924

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:086.41:047.36:501.37:35-0.36:135:59Waxing Crescent1Wed
2Thu2:026.11:457.37:321.88:28-0.36:145:57Waxing Crescent2Thu
3Fri3:025.82:337.28:202.39:26-0.26:155:56Waxing Crescent3Fri
4Sat4:105.53:296.99:182.810:30-0.16:165:54First Quarter4Sat
5Sun5:245.44:376.610:283.111:390.16:175:52First Quarter5Sun
6Mon6:395.45:516.411:503.16:185:51First Quarter6Mon
7Tue7:455.77:066.412:470.11:082.86:195:49Waxing Gibbous7Tue
8Wed8:396.18:146.41:490.12:152.26:205:48Waxing Gibbous8Wed
9Thu9:246.49:146.52:430.23:111.66:215:46Waxing Gibbous9Thu
10Fri10:036.710:086.53:300.34:001.16:225:44Waxing Gibbous10Fri
11Sat10:386.910:566.44:130.54:440.66:235:43Full Moon11Sat
12Sun11:117.011:426.34:520.85:250.36:245:41Full Moon12Sun
13Mon11:427.05:281.26:040.16:265:40Full Moon13Mon
14Tue12:256.112:127.06:041.76:430.06:275:38Waning Gibbous14Tue
15Wed1:095.912:436.86:392.17:220.16:285:37Waning Gibbous15Wed
16Thu1:535.71:146.67:142.68:020.26:295:35Waning Gibbous16Thu
17Fri2:415.41:496.47:513.08:460.56:305:34Waning Gibbous17Fri
18Sat3:335.22:286.18:343.49:340.76:315:32Waning Gibbous18Sat
19Sun4:335.03:175.89:283.610:290.96:325:31Third Quarter19Sun
20Mon5:375.04:205.510:393.711:291.06:335:29Third Quarter20Mon
21Tue6:395.15:325.411:583.66:345:28Third Quarter21Tue
22Wed7:315.46:445.412:291.01:073.26:355:26Third Quarter22Wed
23Thu8:145.77:485.61:241.02:032.66:375:25Waning Crescent23Thu
24Fri8:526.18:465.82:120.92:511.96:385:23Waning Crescent24Fri
25Sat9:266.69:406.12:560.93:351.26:395:22Waning Crescent25Sat
26Sun10:017.010:316.33:380.94:180.46:405:21New Moon26Sun
27Mon10:367.411:216.44:181.15:01-0.36:415:19New Moon27Mon
28Tue11:127.74:591.35:46-0.86:425:18New Moon28Tue
29Wed12:136.411:50 AM7.95:411.66:32-1.16:445:17New Moon29Wed
30Thu1:056.312:317.96:252.07:20-1.26:455:16Waxing Crescent30Thu
31Fri2:016.11:167.77:122.48:12-1.16:465:14Waxing Crescent31Fri
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 7:15 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 82% 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 (82% 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