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

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in North Spit, Humboldt Bay, CA.
Next low tide : in 4h 36m at 12:17 pm (2.9 ft)
Next high tide : 6:59 pm (6.6 ft)
Sunset today : 8:42 pm
Sunrise tomorrow : 6:04 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9418767
Common Questions About Tides

North Spit, Humboldt Bay, CA Tides - Aug 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:125.74:467.110:051.011:150.96:138:32First Quarter1Sun
2Mon5:225.15:377.210:551.76:148:31First Quarter2Mon
3Tue6:424.86:347.212:250.711:54 AM2.36:158:30First Quarter3Tue
4Wed8:074.77:357.31:370.41:032.76:168:29Waxing Gibbous4Wed
5Thu9:264.98:377.42:440.02:152.86:178:27Waxing Gibbous5Thu
6Fri10:305.29:377.53:44-0.33:222.86:188:26Waxing Gibbous6Fri
7Sat11:225.510:317.54:36-0.64:222.56:198:25Waxing Gibbous7Sat
8Sun12:055.85:22-0.75:152.36:208:24Full Moon8Sun
9Mon12:436.16:04-0.76:032.06:218:22Full Moon9Mon
10Tue12:077.31:186.26:43-0.56:481.86:228:21Full Moon10Tue
11Wed12:507.01:526.37:19-0.27:311.66:238:20Full Moon11Wed
12Thu1:326.72:246.47:530.28:141.66:248:18Waning Gibbous12Thu
13Fri2:146.22:566.48:270.78:581.56:258:17Waning Gibbous13Fri
14Sat2:585.83:306.49:001.29:441.66:268:16Waning Gibbous14Sat
15Sun3:455.34:066.39:341.810:351.66:278:14Waning Gibbous15Sun
16Mon4:394.84:466.210:102.311:331.66:288:13Third Quarter16Mon
17Tue5:434.55:326.210:532.86:298:12Third Quarter17Tue
18Wed6:584.36:276.212:361.511:48 AM3.26:308:10Third Quarter18Wed
19Thu8:174.47:256.31:421.312:593.46:318:09Third Quarter19Thu
20Fri9:264.68:246.52:411.02:103.46:328:07Waning Crescent20Fri
21Sat10:174.99:186.73:330.53:113.16:338:06Waning Crescent21Sat
22Sun10:585.310:097.04:180.14:052.76:348:04Waning Crescent22Sun
23Mon11:355.710:587.24:59-0.24:532.36:358:03New Moon23Mon
24Tue12:106.15:38-0.45:391.86:368:01New Moon24Tue
25Wed12:456.56:16-0.46:261.36:378:00New Moon25Wed
26Thu12:337.31:206.86:54-0.37:130.86:387:58New Moon26Thu
27Fri1:227.11:587.17:320.08:020.56:397:57Waxing Crescent27Fri
28Sat2:146.72:377.38:130.58:550.36:407:55Waxing Crescent28Sat
29Sun3:096.23:217.48:551.19:510.26:417:53Waxing Crescent29Sun
30Mon4:115.74:097.39:421.710:540.26:427:52First Quarter30Mon
31Tue5:215.35:057.210:372.36:437:50First Quarter31Tue
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 3:38 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 63% 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 First Quarter (63% 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