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 1h 47m 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 - Dec 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:057.111:125.33:492.44:570.77:214:49Waning Crescent1Sat
2Sun10:357.311:585.54:272.75:330.27:224:49New Moon2Sun
3Mon11:057.45:043.06:07-0.17:234:49New Moon3Mon
4Tue12:405.611:35 AM7.55:403.26:42-0.37:244:49New Moon4Tue
5Wed1:225.712:067.56:153.47:17-0.57:254:48New Moon5Wed
6Thu2:035.712:387.46:513.67:54-0.57:264:48Waxing Crescent6Thu
7Fri2:455.71:127.37:293.88:32-0.57:274:48Waxing Crescent7Fri
8Sat3:305.61:497.08:113.99:13-0.37:284:48Waxing Crescent8Sat
9Sun4:165.72:336.79:013.99:57-0.17:294:48Waxing Crescent9Sun
10Mon5:055.83:276.310:023.910:450.27:304:48First Quarter10Mon
11Tue5:536.04:355.911:163.711:360.57:304:48First Quarter11Tue
12Wed6:406.35:565.512:333.17:314:49First Quarter12Wed
13Thu7:256.77:215.312:301.01:462.37:324:49First Quarter13Thu
14Fri8:097.28:425.31:261.42:491.47:334:49Waxing Gibbous14Fri
15Sat8:537.89:565.52:221.83:450.47:334:49Waxing Gibbous15Sat
16Sun9:378.211:025.83:172.24:37-0.57:344:49Waxing Gibbous16Sun
17Mon10:218.64:102.55:26-1.27:354:50Full Moon17Mon
18Tue12:016.011:06 AM8.85:022.86:14-1.67:354:50Full Moon18Tue
19Wed12:556.211:52 AM8.85:533.07:01-1.87:364:51Full Moon19Wed
20Thu1:476.312:398.66:443.17:48-1.67:374:51Waning Gibbous20Thu
21Fri2:376.31:268.17:363.28:34-1.37:374:51Waning Gibbous21Fri
22Sat3:266.32:157.68:303.39:20-0.87:384:52Waning Gibbous22Sat
23Sun4:166.33:076.99:293.410:07-0.27:384:52Waning Gibbous23Sun
24Mon5:056.34:036.210:333.410:540.57:384:53Third Quarter24Mon
25Tue5:536.35:065.511:453.211:421.27:394:54Third Quarter25Tue
26Wed6:396.46:185.012:582.97:394:54Third Quarter26Wed
27Thu7:236.67:374.712:321.82:062.47:394:55Third Quarter27Thu
28Fri8:046.88:564.71:222.43:031.87:404:56Waning Crescent28Fri
29Sat8:427.010:064.82:132.83:511.27:404:56Waning Crescent29Sat
30Sun9:207.211:035.13:033.24:320.77:404:57Waning Crescent30Sun
31Mon9:577.411:545.33:493.45:110.27:404:58Waning Crescent31Mon
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