40.8500’ N, 124.1170’ W

Arcata Wharf, CA

50°
H -°
L 44°
SE
1mph
High tide
9:45 am

Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Tuesday, October 20, 2026
The tide is currently rising in Arcata Wharf, CA.
Next low tide : 3:19 pm (3.4 ft)
Next high tide : in 6h 16m at 9:45 am (5.4 ft)
Sunset today : 6:28 pm
Sunrise tomorrow : 7:33 am
Moon phase : Waxing Gibbous (70% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - Mar 1814

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:387.39:475.31:223.32:580.06:576:14Waxing Gibbous1Tue
2Wed8:457.510:435.72:393.33:57-0.46:566:15Waxing Gibbous2Wed
3Thu9:477.611:286.13:462.94:48-0.76:546:16Waxing Gibbous3Thu
4Fri10:437.74:442.55:34-0.86:536:17Full Moon4Fri
5Sat12:096.411:35 AM7.75:362.06:16-0.76:516:18Full Moon5Sat
6Sun12:466.612:237.56:241.66:56-0.46:506:19Full Moon6Sun
7Mon1:216.81:107.17:101.37:330.06:486:21Full Moon7Mon
8Tue1:556.91:556.77:561.18:090.66:466:22Waning Gibbous8Tue
9Wed2:296.82:426.28:411.18:451.26:456:23Waning Gibbous9Wed
10Thu3:026.83:315.69:271.19:201.96:436:24Waning Gibbous10Thu
11Fri3:376.64:255.110:161.29:582.56:426:25Waning Gibbous11Fri
12Sat4:156.45:294.711:111.310:413.16:406:26Third Quarter12Sat
13Sun5:006.26:454.512:131.36:386:27Third Quarter13Sun
14Mon5:546.08:104.51:201.36:376:28Third Quarter14Mon
15Tue6:566.09:224.812:533.72:241.16:356:29Third Quarter15Tue
16Wed8:006.110:105.02:093.73:190.86:336:30Waning Crescent16Wed
17Thu8:596.210:465.33:113.44:050.56:326:31Waning Crescent17Thu
18Fri9:516.511:195.64:023.04:450.26:306:33Waning Crescent18Fri
19Sat10:386.711:496.04:462.55:220.06:286:34Waning Crescent19Sat
20Sun11:236.85:272.05:570.06:276:35New Moon20Sun
21Mon12:206.312:076.96:081.56:310.16:256:36New Moon21Mon
22Tue12:506.612:526.86:501.07:060.46:236:37New Moon22Tue
23Wed1:226.91:396.67:330.57:420.86:226:38Waxing Crescent23Wed
24Thu1:557.12:306.28:190.28:191.36:206:39Waxing Crescent24Thu
25Fri2:317.23:265.89:090.09:001.96:186:40Waxing Crescent25Fri
26Sat3:127.24:305.410:040.09:482.46:176:41Waxing Crescent26Sat
27Sun4:017.15:435.111:070.010:462.96:156:42First Quarter27Sun
28Mon4:596.97:055.012:150.06:136:43First Quarter28Mon
29Tue6:086.78:235.212:013.21:270.06:126:44First Quarter29Tue
30Wed7:236.69:265.51:253.22:34-0.16:106:45Waxing Gibbous30Wed
31Thu8:366.610:165.92:422.83:32-0.26:086:46Waxing Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9418851)

Common Questions About Arcata Wharf, CA Tides

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Is this week a spring tide or neap tide in Arcata Wharf, CA?

Arcata Wharf, CA is currently in a transitional phase. Tonight's moon is 70% 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 shifting between spring and neap.

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 Gibbous (70% illuminated). This places Arcata Wharf, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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