Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Saturday, August 15, 2026
The tide is currently rising in Arcata Wharf, CA.
Next low tide : 9:03 am (0.0 ft)
Next high tide : in 5h 07m at 2:38 am (7.1 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:25 am
Moon phase : Waxing Crescent (6% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - Sep 1948

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:255.75:43-0.95:312.76:437:49Waning Crescent1Wed
2Thu1:026.26:29-1.16:252.06:447:47New Moon2Thu
3Fri12:258.01:396.67:11-1.07:171.46:457:45New Moon3Fri
4Sat1:187.82:157.07:52-0.78:090.86:467:44New Moon4Sat
5Sun2:127.52:527.38:32-0.29:010.56:477:42Waxing Crescent5Sun
6Mon3:076.93:307.49:120.69:540.36:487:40Waxing Crescent6Mon
7Tue4:046.34:107.49:531.410:510.26:497:39Waxing Crescent7Tue
8Wed5:085.64:537.310:362.311:520.46:507:37First Quarter8Wed
9Thu6:215.15:427.011:263.06:517:35First Quarter9Thu
10Fri7:484.96:406.712:580.512:283.66:527:34First Quarter10Fri
11Sat9:224.97:476.42:100.61:483.96:537:32First Quarter11Sat
12Sun10:365.18:566.33:190.63:103.96:547:30Waxing Gibbous12Sun
13Mon11:245.39:586.44:190.54:163.56:557:29Waxing Gibbous13Mon
14Tue11:595.510:516.55:070.45:063.16:567:27Waxing Gibbous14Tue
15Wed12:275.75:480.35:492.76:577:25Waxing Gibbous15Wed
16Thu12:525.96:220.36:272.36:587:24Full Moon16Thu
17Fri12:186.61:166.16:530.47:031.96:597:22Full Moon17Fri
18Sat12:576.51:406.37:220.67:381.57:007:20Full Moon18Sat
19Sun1:356.42:046.57:491.08:131.27:017:19Full Moon19Sun
20Mon2:146.22:286.68:161.48:501.07:027:17Waning Gibbous20Mon
21Tue2:565.92:526.78:431.99:290.87:037:15Waning Gibbous21Tue
22Wed3:415.53:186.89:112.410:110.77:047:13Waning Gibbous22Wed
23Thu4:345.23:486.89:402.911:010.77:057:12Waning Gibbous23Thu
24Fri5:374.94:266.710:163.47:067:10Third Quarter24Fri
25Sat6:544.75:216.612:000.611:04 AM3.87:077:08Third Quarter25Sat
26Sun8:214.76:356.51:090.612:244.07:087:07Third Quarter26Sun
27Mon9:355.07:586.62:210.32:033.97:097:05Third Quarter27Mon
28Tue10:275.39:156.83:270.03:243.57:107:03Waning Crescent28Tue
29Wed11:095.810:227.04:23-0.24:302.77:117:02Waning Crescent29Wed
30Thu11:466.311:237.25:13-0.45:261.87:127:00Waning Crescent30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9418851)

Common Questions About Arcata Wharf, CA Tides

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What time does the tide turn (slack tide) in Arcata Wharf, CA today?

Slack tide in Arcata Wharf, CA is approximately 5:50 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 Arcata Wharf, CA?

Arcata Wharf, CA is currently in a spring phase. Tonight's moon is 6% 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 Arcata Wharf, 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 Arcata Wharf, CA?

Tide predictions for Arcata Wharf, 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 Arcata Wharf, CA?

Tide data for Arcata Wharf, CA is sourced from NOAA Station #9418851. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9418851.

What is the moon phase in Arcata Wharf, CA tonight?

Tonight the moon over Arcata Wharf, CA is Waxing Crescent (6% illuminated). This places Arcata Wharf, 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