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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in North Spit, Humboldt Bay, CA.
Next low tide : 9:21 am (-0.3 ft)
Next high tide : in 31m at 2:27 am (6.2 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:51 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #9418767
Common Questions About Tides

North Spit, Humboldt Bay, CA Tides - Sep 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:564.77:526.12:240.91:554.06:447:48Waxing Gibbous1Thu
2Fri10:394.98:546.23:220.73:033.76:457:46Waxing Gibbous2Fri
3Sat11:095.19:476.44:090.43:563.36:467:45Waxing Gibbous3Sat
4Sun11:355.310:336.64:480.24:392.96:477:43Waxing Gibbous4Sun
5Mon12:005.65:220.15:192.46:487:41Full Moon5Mon
6Tue12:255.95:530.15:582.06:497:40Full Moon6Tue
7Wed12:506.26:230.26:361.56:507:38Full Moon7Wed
8Thu12:386.51:166.56:520.57:151.16:517:36Full Moon8Thu
9Fri1:216.31:426.77:210.97:560.76:527:35Waning Gibbous9Fri
10Sat2:076.02:097.07:511.48:400.46:537:33Waning Gibbous10Sat
11Sun2:585.62:417.18:232.09:300.36:547:31Waning Gibbous11Sun
12Mon3:575.23:187.18:582.610:270.26:557:30Waning Gibbous12Mon
13Tue5:074.84:067.19:413.211:330.26:567:28Third Quarter13Tue
14Wed6:314.65:096.910:403.66:577:26Third Quarter14Wed
15Thu8:014.76:276.812:460.112:073.86:587:24Third Quarter15Thu
16Fri9:135.07:476.81:59-0.11:413.66:597:23Waning Crescent16Fri
17Sat10:045.48:597.03:03-0.32:593.17:007:21Waning Crescent17Sat
18Sun10:455.810:037.13:57-0.44:022.47:017:19Waning Crescent18Sun
19Mon11:216.311:017.14:43-0.44:561.67:027:18New Moon19Mon
20Tue11:556.711:546.95:25-0.35:450.97:037:16New Moon20Tue
21Wed12:277.06:040.16:320.47:047:14New Moon21Wed
22Thu12:446.712:597.26:400.77:160.07:057:13New Moon22Thu
23Fri1:346.31:307.37:161.38:00-0.17:067:11Waxing Crescent23Fri
24Sat2:235.92:017.27:512.08:44-0.17:077:09Waxing Crescent24Sat
25Sun3:155.52:337.08:262.69:300.17:087:08Waxing Crescent25Sun
26Mon4:115.13:096.79:033.210:200.47:097:06Waxing Crescent26Mon
27Tue5:154.83:516.39:463.711:180.77:107:04First Quarter27Tue
28Wed6:334.64:475.910:444.07:117:02First Quarter28Wed
29Thu8:004.75:585.712:240.912:084.17:127:01First Quarter29Thu
30Fri9:044.87:135.61:321.01:373.97:136:59First Quarter30Fri
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 5:54 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 80% 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 (80% 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