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

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in North Spit, Humboldt Bay, CA.
Next low tide : in 5h 03m at 9:58 am (-1.1 ft)
Next high tide : 4:56 pm (6.0 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9418767
Common Questions About Tides

North Spit, Humboldt Bay, CA Tides - Sep 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:225.24:266.59:562.111:111.16:447:49Third Quarter1Sat
2Sun5:324.95:166.610:442.66:457:47Third Quarter2Sun
3Mon6:524.76:176.712:180.911:47 AM3.06:467:46Third Quarter3Mon
4Tue8:144.87:246.91:290.51:043.26:477:44Third Quarter4Tue
5Wed9:245.18:327.12:350.12:213.06:487:42Waning Crescent5Wed
6Thu10:215.59:357.43:34-0.43:282.66:497:41Waning Crescent6Thu
7Fri11:096.010:347.64:27-0.74:272.16:507:39Waning Crescent7Fri
8Sat11:516.411:297.75:16-0.95:211.56:507:37New Moon8Sat
9Sun12:326.76:01-0.96:121.06:517:36New Moon9Sun
10Mon12:217.61:117.06:43-0.67:020.66:527:34New Moon10Mon
11Tue1:137.31:497.17:25-0.17:510.46:537:32Waxing Crescent11Tue
12Wed2:046.92:287.18:060.58:410.46:547:31Waxing Crescent12Wed
13Thu2:576.33:087.08:471.29:320.46:557:29Waxing Crescent13Thu
14Fri3:535.83:496.89:311.910:270.66:567:27Waxing Crescent14Fri
15Sat4:545.34:356.510:182.611:260.86:577:26First Quarter15Sat
16Sun6:055.05:276.211:143.16:587:24First Quarter16Sun
17Mon7:254.86:286.012:311.012:233.46:597:22First Quarter17Mon
18Tue8:424.97:325.91:381.01:383.57:007:21First Quarter18Tue
19Wed9:405.18:345.92:390.92:453.37:017:19Waxing Gibbous19Wed
20Thu10:225.49:296.13:310.73:393.07:027:17Waxing Gibbous20Thu
21Fri10:565.610:176.34:150.64:232.67:037:15Waxing Gibbous21Fri
22Sat11:265.811:016.44:530.55:032.17:047:14Waxing Gibbous22Sat
23Sun11:556.111:426.55:270.55:401.77:057:12Full Moon23Sun
24Mon12:246.36:000.56:171.37:067:10Full Moon24Mon
25Tue12:226.512:526.56:310.76:541.07:077:09Full Moon25Tue
26Wed1:036.41:216.67:031.07:320.77:087:07Full Moon26Wed
27Thu1:466.21:516.87:351.38:130.57:097:05Waning Gibbous27Thu
28Fri2:325.92:236.88:091.88:570.37:107:04Waning Gibbous28Fri
29Sat3:245.62:596.88:472.29:480.37:117:02Waning Gibbous29Sat
30Sun4:235.33:436.89:312.710:460.37:127:00Third Quarter30Sun
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 1:27 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 transitional phase. Tonight's moon is 28% 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 Waxing Crescent (28% 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