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

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in North Spit, Humboldt Bay, CA.
Next low tide : 1:16 pm (3.4 ft)
Next high tide : in 3m at 9:06 am (4.2 ft)
Sunset today : 8:41 pm
Sunrise tomorrow : 6:05 am
Moon phase : Waxing Gibbous (72% illuminated)
Tide Station Location : Station #9418767
Common Questions About Tides

North Spit, Humboldt Bay, CA Tides - Aug 1974

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:305.45:42-0.35:242.96:138:32Full Moon1Thu
2Fri12:595.56:16-0.36:052.66:148:31Full Moon2Fri
3Sat12:026.91:265.76:47-0.36:432.46:158:30Full Moon3Sat
4Sun12:396.71:545.87:18-0.17:222.26:168:29Full Moon4Sun
5Mon1:176.52:226.07:470.28:012.16:178:28Waning Gibbous5Mon
6Tue1:556.22:506.18:160.58:421.96:188:27Waning Gibbous6Tue
7Wed2:365.83:206.38:451.09:271.76:198:26Waning Gibbous7Wed
8Thu3:225.33:526.49:151.510:171.66:208:24Waning Gibbous8Thu
9Fri4:164.94:296.59:472.011:151.46:218:23Third Quarter9Fri
10Sat5:234.55:136.610:272.56:228:22Third Quarter10Sat
11Sun6:444.36:086.812:211.111:20 AM3.06:238:20Third Quarter11Sun
12Mon8:104.37:117.01:300.712:333.36:248:19Third Quarter12Mon
13Tue9:254.68:177.32:360.21:543.36:258:18Waning Crescent13Tue
14Wed10:235.09:207.63:34-0.33:073.06:258:16Waning Crescent14Wed
15Thu11:105.510:197.84:26-0.84:102.56:268:15Waning Crescent15Thu
16Fri11:526.011:157.95:13-1.15:072.06:278:14New Moon16Fri
17Sat12:326.45:58-1.26:011.46:288:12New Moon17Sat
18Sun12:097.81:116.86:40-1.06:540.96:298:11New Moon18Sun
19Mon1:027.51:507.27:22-0.67:460.56:308:09Waxing Crescent19Mon
20Tue1:567.12:307.38:030.08:390.46:318:08Waxing Crescent20Tue
21Wed2:516.53:127.48:440.79:350.46:328:06Waxing Crescent21Wed
22Thu3:495.83:557.39:271.510:330.56:338:05First Quarter22Thu
23Fri4:535.24:437.010:142.211:370.66:348:04First Quarter23Fri
24Sat6:074.85:376.811:082.96:358:02First Quarter24Sat
25Sun7:334.66:386.512:460.712:153.36:368:00First Quarter25Sun
26Mon8:584.77:426.41:560.71:313.56:377:59Waxing Gibbous26Mon
27Tue10:014.98:436.42:580.62:413.46:387:57Waxing Gibbous27Tue
28Wed10:455.29:376.53:500.53:393.16:397:56Waxing Gibbous28Wed
29Thu11:185.410:256.54:330.34:272.76:407:54Waxing Gibbous29Thu
30Fri11:465.611:076.65:100.35:082.36:417:53Full Moon30Fri
31Sat12:135.85:420.35:472.06:427:51Full Moon31Sat
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 11:11 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 72% 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 Gibbous (72% 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