Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Arcata Wharf, CA.
Next low tide : in 6h 04m at 9:40 am (0.7 ft)
Next high tide : 4:04 pm (6.9 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - May 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:376.26:18-1.06:131.35:147:12New Moon1Wed
2Thu12:187.81:336.17:06-1.56:561.85:137:13New Moon2Thu
3Fri12:587.92:305.97:55-1.77:422.25:127:14Waxing Crescent3Fri
4Sat1:427.83:305.78:47-1.78:322.75:117:15Waxing Crescent4Sat
5Sun2:297.54:345.59:41-1.49:303.05:097:16Waxing Crescent5Sun
6Mon3:247.05:415.410:40-1.010:393.25:087:17First Quarter6Mon
7Tue4:276.56:495.411:42-0.65:077:18First Quarter7Tue
8Wed5:395.97:515.612:003.212:46-0.25:067:19First Quarter8Wed
9Thu6:565.58:435.81:232.91:470.25:057:20First Quarter9Thu
10Fri8:115.39:256.12:362.32:420.55:047:21Waxing Gibbous10Fri
11Sat9:195.210:016.33:341.73:290.85:037:22Waxing Gibbous11Sat
12Sun10:195.210:326.54:231.04:111.25:017:23Waxing Gibbous12Sun
13Mon11:115.211:016.75:040.54:481.65:007:24Waxing Gibbous13Mon
14Tue11:585.211:296.85:420.05:242.04:597:25Full Moon14Tue
15Wed12:415.36:18-0.35:572.34:587:26Full Moon15Wed
16Thu1:245.26:53-0.56:312.74:587:27Full Moon16Thu
17Fri12:246.82:065.27:28-0.67:043.04:577:28Full Moon17Fri
18Sat12:536.72:495.18:04-0.67:383.24:567:29Waning Gibbous18Sat
19Sun1:246.63:355.08:42-0.58:153.44:557:30Waning Gibbous19Sun
20Mon1:586.44:244.99:23-0.48:583.64:547:31Waning Gibbous20Mon
21Tue2:376.25:174.910:08-0.29:523.74:537:32Waning Gibbous21Tue
22Wed3:265.96:105.010:580.011:023.64:527:33Third Quarter22Wed
23Thu4:285.57:005.211:510.14:527:33Third Quarter23Thu
24Fri5:435.37:455.512:223.312:450.34:517:34Third Quarter24Fri
25Sat7:035.18:256.01:352.71:390.64:507:35Third Quarter25Sat
26Sun8:195.19:046.52:391.82:300.84:507:36Waning Crescent26Sun
27Mon9:305.29:437.13:340.93:201.14:497:37Waning Crescent27Mon
28Tue10:365.410:227.64:26-0.14:081.54:487:38Waning Crescent28Tue
29Wed11:385.611:038.05:15-1.04:561.84:487:39New Moon29Wed
30Thu12:365.76:04-1.75:442.24:477:39New Moon30Thu
31Fri1:325.86:52-2.16:332.54:477:40New Moon31Fri
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 12:52 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 19% 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 (19% 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