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

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in North Spit, Humboldt Bay, CA.
Next low tide : in 3h 02m at 12:20 am (0.8 ft)
Next high tide : 6:41 am (4.3 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 6:17 am
Moon phase : Third Quarter (53% illuminated)
Tide Station Location : Station #9418767
Common Questions About Tides

North Spit, Humboldt Bay, CA Tides - Sep 1951

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:586.06:260.06:321.96:437:50New Moon1Sat
2Sun12:326.71:246.36:560.27:121.46:447:49New Moon2Sun
3Mon1:146.51:506.67:250.67:531.16:457:47Waxing Crescent3Mon
4Tue1:596.22:176.87:551.18:370.86:467:45Waxing Crescent4Tue
5Wed2:485.72:477.08:261.79:260.56:477:44Waxing Crescent5Wed
6Thu3:445.33:227.19:002.310:220.46:487:42Waxing Crescent6Thu
7Fri4:524.84:077.19:392.911:270.36:497:40First Quarter7Fri
8Sat6:154.65:057.010:323.46:507:39First Quarter8Sat
9Sun7:474.66:186.912:400.211:50 AM3.76:517:37First Quarter9Sun
10Mon9:084.87:367.01:540.01:243.76:527:35Waxing Gibbous10Mon
11Tue10:055.28:507.13:00-0.32:463.36:537:34Waxing Gibbous11Tue
12Wed10:485.69:557.23:56-0.53:522.76:547:32Waxing Gibbous12Wed
13Thu11:256.110:537.34:44-0.64:482.06:557:30Waxing Gibbous13Thu
14Fri12:006.55:27-0.55:391.36:567:29Full Moon14Fri
15Sat12:336.86:06-0.26:270.76:567:27Full Moon15Sat
16Sun12:366.91:057.06:430.37:120.36:577:25Full Moon16Sun
17Mon1:256.51:367.27:180.97:570.16:587:24Waning Gibbous17Mon
18Tue2:156.12:077.17:531.68:420.16:597:22Waning Gibbous18Tue
19Wed3:055.62:397.08:282.39:280.37:007:20Waning Gibbous19Wed
20Thu4:005.23:146.79:032.910:180.57:017:18Waning Gibbous20Thu
21Fri5:034.83:546.49:433.511:150.87:027:17Third Quarter21Fri
22Sat6:204.64:466.110:343.97:037:15Third Quarter22Sat
23Sun7:514.65:535.812:211.011:52 AM4.17:047:13Third Quarter23Sun
24Mon9:074.77:075.71:311.01:234.07:057:12Third Quarter24Mon
25Tue9:504.98:165.82:330.92:363.67:067:10Waning Crescent25Tue
26Wed10:215.29:156.03:230.73:303.27:077:08Waning Crescent26Wed
27Thu10:475.510:066.14:040.54:152.67:087:07Waning Crescent27Thu
28Fri11:135.910:526.34:400.54:552.07:097:05Waning Crescent28Fri
29Sat11:386.311:386.35:120.65:341.37:107:03New Moon29Sat
30Sun11:046.611:236.34:440.85:130.76:116:02New Moon30Sun
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 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 neap phase. Tonight's moon is 53% 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 minimum.

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 (53% illuminated). This places North Spit, Humboldt Bay, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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