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

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently rising in North Spit, Humboldt Bay, CA.
Next low tide : 6:05 pm (2.1 ft)
Next high tide : in 22m at 12:55 pm (6.0 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 6:24 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9418767
Common Questions About Tides

North Spit, Humboldt Bay, CA Tides - Sep 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:124.74:376.310:143.111:461.05:436:50First Quarter1Thu
2Fri6:334.65:386.111:223.45:446:48First Quarter2Fri
3Sat7:504.76:416.112:531.012:363.45:456:47Waxing Gibbous3Sat
4Sun8:474.97:416.11:520.91:433.35:466:45Waxing Gibbous4Sun
5Mon9:285.28:356.32:420.72:382.95:476:43Waxing Gibbous5Mon
6Tue10:015.49:226.43:230.63:242.55:486:42Waxing Gibbous6Tue
7Wed10:315.710:056.53:590.54:052.15:496:40Waxing Gibbous7Wed
8Thu10:596.010:476.54:330.44:431.75:506:38Full Moon8Thu
9Fri11:286.311:276.55:040.55:211.35:516:37Full Moon9Fri
10Sat11:566.55:350.75:591.05:526:35Full Moon10Sat
11Sun12:086.312:256.76:071.06:380.75:536:33Waning Gibbous11Sun
12Mon12:526.112:566.96:391.47:200.55:546:32Waning Gibbous12Mon
13Tue1:385.81:307.07:131.88:070.45:556:30Waning Gibbous13Tue
14Wed2:315.52:097.07:512.29:000.35:566:28Waning Gibbous14Wed
15Thu3:315.12:566.98:352.710:000.35:576:27Third Quarter15Thu
16Fri4:414.93:556.89:333.011:070.35:586:25Third Quarter16Fri
17Sat5:584.95:066.710:483.25:596:23Third Quarter17Sat
18Sun7:115.16:216.712:170.212:123.16:006:22Third Quarter18Sun
19Mon8:125.57:346.81:220.11:292.76:016:20Waning Crescent19Mon
20Tue9:016.08:406.92:20-0.12:342.06:026:18Waning Crescent20Tue
21Wed9:446.49:397.03:11-0.13:301.36:036:16Waning Crescent21Wed
22Thu10:246.910:347.03:570.04:220.66:046:15New Moon22Thu
23Fri11:027.211:256.84:390.25:090.16:056:13New Moon23Fri
24Sat11:387.45:200.65:55-0.26:066:11New Moon24Sat
25Sun12:156.612:157.46:001.16:40-0.36:076:10Waxing Crescent25Sun
26Mon1:046.312:517.36:391.67:25-0.26:086:08Waxing Crescent26Mon
27Tue1:535.91:287.17:192.18:110.06:096:06Waxing Crescent27Tue
28Wed2:455.52:086.78:012.79:000.36:106:05Waxing Crescent28Wed
29Thu3:425.22:526.48:473.19:540.76:116:03First Quarter29Thu
30Fri4:454.93:456.09:433.410:540.96:126:01First 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 3:30 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 0% 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 New Moon (0% 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