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

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in North Spit, Humboldt Bay, CA.
Next low tide : in 3h 19m at 2:41 am (-0.2 ft)
Next high tide : 9:43 am (4.6 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 6:19 am
Moon phase : Third Quarter (31% illuminated)
Tide Station Location : Station #9418767
Common Questions About Tides

North Spit, Humboldt Bay, CA Tides - May 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:505.69:366.42:541.43:000.35:157:12Waxing Gibbous1Thu
2Fri9:505.610:096.73:450.73:430.75:147:13Waxing Gibbous2Fri
3Sat10:455.610:406.94:300.04:221.15:137:14Full Moon3Sat
4Sun11:355.511:107.05:11-0.44:591.65:117:15Full Moon4Sun
5Mon12:225.45:51-0.75:352.15:107:16Full Moon5Mon
6Tue1:075.36:29-0.96:102.55:097:17Full Moon6Tue
7Wed12:096.81:535.17:07-0.86:452.95:087:18Waning Gibbous7Wed
8Thu12:406.62:404.97:46-0.77:223.25:077:19Waning Gibbous8Thu
9Fri1:136.43:314.88:28-0.48:033.45:067:20Waning Gibbous9Fri
10Sat1:516.04:264.79:14-0.18:533.65:047:21Waning Gibbous10Sat
11Sun2:365.75:254.610:040.110:003.75:037:22Third Quarter11Sun
12Mon3:345.36:214.710:590.311:203.55:027:23Third Quarter12Mon
13Tue4:445.07:085.011:540.55:017:24Third Quarter13Tue
14Wed5:594.97:475.312:363.112:470.65:007:25Third Quarter14Wed
15Thu7:114.88:215.71:392.51:350.84:597:26Waning Crescent15Thu
16Fri8:184.98:546.22:301.72:201.04:587:27Waning Crescent16Fri
17Sat9:195.19:266.73:170.83:021.24:577:28Waning Crescent17Sat
18Sun10:175.310:007.14:010.03:431.54:577:29Waning Crescent18Sun
19Mon11:125.410:357.54:44-0.84:251.94:567:30New Moon19Mon
20Tue12:075.55:29-1.55:082.24:557:31New Moon20Tue
21Wed1:015.56:15-1.95:532.54:547:32New Moon21Wed
22Thu1:575.57:03-2.16:412.84:537:33Waxing Crescent22Thu
23Fri12:427.72:545.47:54-2.07:353.04:537:33Waxing Crescent23Fri
24Sat1:347.43:545.48:47-1.78:383.14:527:34Waxing Crescent24Sat
25Sun2:326.94:545.49:44-1.39:513.14:517:35First Quarter25Sun
26Mon3:396.35:525.610:42-0.811:132.84:507:36First Quarter26Mon
27Tue4:535.76:465.911:41-0.34:507:37First Quarter27Tue
28Wed6:125.27:336.212:332.312:380.24:497:38First Quarter28Wed
29Thu7:304.98:156.51:441.61:310.84:497:39Waxing Gibbous29Thu
30Fri8:434.88:526.82:420.82:191.34:487:39Waxing Gibbous30Fri
31Sat9:484.99:277.03:320.13:041.84:487:40Waxing Gibbous31Sat
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 6:12 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 transitional phase. Tonight's moon is 31% 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 shifting between spring and neap.

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 Third Quarter (31% illuminated). This places North Spit, Humboldt Bay, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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