Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in Arcata Wharf, CA.
Next low tide : in 3h 47m at 4:00 pm (3.5 ft)
Next high tide : 10:08 pm (7.9 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:21 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - Sep 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:595.610:167.44:20-0.24:132.76:437:49Waning Crescent1Sat
2Sun11:446.111:167.65:12-0.55:142.06:447:47Waning Crescent2Sun
3Mon12:256.55:59-0.66:091.46:457:45New Moon3Mon
4Tue12:127.61:047.06:43-0.47:000.86:467:44New Moon4Tue
5Wed1:057.51:437.37:24-0.17:500.36:477:42New Moon5Wed
6Thu1:577.22:217.58:050.38:390.16:487:40Waxing Crescent6Thu
7Fri2:496.82:597.58:460.99:280.16:497:39Waxing Crescent7Fri
8Sat3:426.33:397.49:261.610:190.26:507:37Waxing Crescent8Sat
9Sun4:385.74:217.110:092.311:130.56:517:35Waxing Crescent9Sun
10Mon5:395.35:086.810:562.86:527:34First Quarter10Mon
11Tue6:495.06:026.412:130.811:52 AM3.36:537:32First Quarter11Tue
12Wed8:084.87:056.21:181.01:023.66:547:30First Quarter12Wed
13Thu9:234.98:126.02:251.12:203.66:557:29First Quarter13Thu
14Fri10:205.19:166.03:271.03:293.36:567:27Waxing Gibbous14Fri
15Sat11:005.410:126.14:180.94:252.96:577:25Waxing Gibbous15Sat
16Sun11:325.611:016.35:010.85:102.56:587:24Waxing Gibbous16Sun
17Mon12:015.95:370.85:512.06:597:22Waxing Gibbous17Mon
18Tue12:296.26:110.86:291.67:007:20Full Moon18Tue
19Wed12:286.412:566.56:421.07:061.17:017:18Full Moon19Wed
20Thu1:096.41:246.87:131.27:430.87:027:17Full Moon20Thu
21Fri1:506.31:526.97:441.58:210.57:037:15Full Moon21Fri
22Sat2:336.12:227.18:161.89:010.37:047:13Waning Gibbous22Sat
23Sun3:195.82:547.18:492.29:450.27:057:12Waning Gibbous23Sun
24Mon4:105.53:327.19:262.610:350.27:067:10Waning Gibbous24Mon
25Tue5:085.24:177.010:103.011:320.27:077:08Third Quarter25Tue
26Wed6:155.05:156.811:063.37:087:07Third Quarter26Wed
27Thu7:295.06:266.612:370.312:213.47:097:05Third Quarter27Thu
28Fri8:395.37:456.51:450.31:473.37:107:03Third Quarter28Fri
29Sat9:385.69:016.62:510.33:062.87:117:02Waning Crescent29Sat
30Sun9:266.19:106.72:500.23:132.16:126:00Waning Crescent30Sun
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 7:04 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 Arcata Wharf, CA?

Arcata Wharf, CA is currently in a spring phase. Tonight's moon is 12% 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 Waning Crescent (12% 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