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 : 9:38 pm (2.8 ft)
Next high tide : in 1h 05m at 4:19 pm (5.6 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 - May 2001

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:275.98:315.512:383.11:28-0.36:148:13First Quarter1Tue
2Wed7:475.89:195.91:592.52:28-0.26:138:14Waxing Gibbous2Wed
3Thu9:015.710:026.43:071.83:220.06:128:15Waxing Gibbous3Thu
4Fri10:085.810:416.84:060.94:110.36:108:16Waxing Gibbous4Fri
5Sat11:095.811:197.14:570.14:560.66:098:17Waxing Gibbous5Sat
6Sun12:055.85:45-0.55:381.16:088:18Full Moon6Sun
7Mon12:575.76:29-1.06:201.56:078:19Full Moon7Mon
8Tue12:307.31:485.67:13-1.27:002.06:068:20Full Moon8Tue
9Wed1:057.22:375.57:55-1.27:412.46:058:21Waning Gibbous9Wed
10Thu1:407.03:275.38:38-1.08:232.86:048:22Waning Gibbous10Thu
11Fri2:176.64:195.19:21-0.79:093.26:028:23Waning Gibbous11Fri
12Sat2:576.25:144.910:08-0.410:023.46:018:24Waning Gibbous12Sat
13Sun3:435.86:114.910:580.011:063.56:008:25Third Quarter13Sun
14Mon4:395.37:074.911:510.35:598:26Third Quarter14Mon
15Tue5:455.07:575.112:223.412:470.65:598:27Third Quarter15Tue
16Wed6:574.78:395.31:363.01:400.85:588:28Third Quarter16Wed
17Thu8:074.79:165.62:382.52:291.05:578:29Waning Crescent17Thu
18Fri9:124.79:496.03:291.83:141.25:568:30Waning Crescent18Fri
19Sat10:104.910:216.44:131.13:551.45:558:31Waning Crescent19Sat
20Sun11:045.010:536.74:530.44:341.65:548:32Waning Crescent20Sun
21Mon11:555.211:257.05:33-0.25:131.95:538:33New Moon21Mon
22Tue12:455.36:12-0.85:522.25:538:33New Moon22Tue
23Wed1:345.46:53-1.36:322.45:528:34New Moon23Wed
24Thu12:357.42:245.47:36-1.67:152.75:518:35New Moon24Thu
25Fri1:157.53:175.48:22-1.78:022.95:518:36Waxing Crescent25Fri
26Sat2:007.34:115.49:11-1.68:573.05:508:37Waxing Crescent26Sat
27Sun2:517.05:085.410:03-1.410:003.15:498:38Waxing Crescent27Sun
28Mon3:506.56:065.510:58-1.011:152.95:498:39First Quarter28Mon
29Tue4:596.07:025.811:56-0.65:488:39First Quarter29Tue
30Wed6:165.57:536.112:352.612:54-0.15:488:40First Quarter30Wed
31Thu7:365.28:416.51:521.91:510.45:478:41Waxing Gibbous31Thu
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 6:58 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 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