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

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in North Spit, Humboldt Bay, CA.
Next low tide (tomorrow) : in 7h 01m at 2:41 am (-0.2 ft)
Next high tide (tomorrow) : 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 - Sep 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:336.06:010.06:071.95:436:50Full Moon1Mon
2Tue12:066.61:006.26:310.26:461.65:446:49Waning Gibbous2Tue
3Wed12:476.41:286.47:000.67:281.45:456:47Waning Gibbous3Wed
4Thu1:326.01:566.57:311.28:141.15:466:45Waning Gibbous4Thu
5Fri2:225.52:286.78:031.89:060.95:476:44Waning Gibbous5Fri
6Sat3:235.13:076.88:402.410:060.75:486:42Third Quarter6Sat
7Sun4:374.73:556.89:253.011:150.55:496:40Third Quarter7Sun
8Mon6:044.64:586.810:283.45:506:39Third Quarter8Mon
9Tue7:324.76:116.912:280.211:52 AM3.65:516:37Third Quarter9Tue
10Wed8:425.07:247.11:37-0.21:173.55:526:35Waning Crescent10Wed
11Thu9:345.48:317.42:38-0.52:273.05:536:34Waning Crescent11Thu
12Fri10:175.99:327.53:30-0.83:272.45:546:32Waning Crescent12Fri
13Sat10:566.210:277.64:17-0.94:211.75:546:30New Moon13Sat
14Sun11:326.611:197.45:00-0.85:111.15:556:29New Moon14Sun
15Mon12:076.95:40-0.46:000.75:566:27New Moon15Mon
16Tue12:107.112:427.06:190.16:480.45:576:25Waxing Crescent16Tue
17Wed1:016.61:167.16:570.87:350.35:586:24Waxing Crescent17Wed
18Thu1:536.11:517.07:341.68:240.35:596:22Waxing Crescent18Thu
19Fri2:485.52:276.88:132.39:160.56:006:20Waxing Crescent19Fri
20Sat3:515.13:086.58:553.010:140.76:016:18First Quarter20Sat
21Sun5:044.83:566.29:463.611:180.96:026:17First Quarter21Sun
22Mon6:324.74:575.910:573.96:036:15First Quarter22Mon
23Tue7:564.86:075.812:270.912:213.96:046:13First Quarter23Tue
24Wed8:515.07:155.81:310.81:353.76:056:12Waxing Gibbous24Wed
25Thu9:275.28:146.02:240.72:313.36:066:10Waxing Gibbous25Thu
26Fri9:575.59:056.23:080.53:162.86:076:08Waxing Gibbous26Fri
27Sat10:235.79:506.33:460.43:562.36:086:07Waxing Gibbous27Sat
28Sun10:506.010:336.44:190.44:331.86:096:05Full Moon28Sun
29Mon11:166.311:156.44:510.55:101.36:106:03Full Moon29Mon
30Tue11:426.611:586.35:210.75:480.86:116:02Full Moon30Tue
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