40.8500’ N, 124.1170’ W

Arcata Wharf, CA

44°
H -°
L 39°
ESE
1mph
Low tide
11:07 pm

Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Saturday, October 31, 2026
The tide is currently falling in Arcata Wharf, CA.
Next low tide (tomorrow) : in 1h 36m at 11:07 pm (-0.8 ft)
Next high tide : 6:12 am (5.5 ft)
Sunset today : 6:15 pm
Sunrise tomorrow : 7:45 am
Moon phase : Waning Gibbous (73% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - Mar 1797

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:146.52:046.48:101.78:200.86:566:15Waxing Crescent1Wed
2Thu2:436.62:516.08:541.48:521.46:546:16Waxing Crescent2Thu
3Fri3:146.83:455.59:441.29:262.06:536:17Waxing Crescent3Fri
4Sat3:506.94:525.010:411.010:072.66:516:19First Quarter4Sat
5Sun4:347.06:134.711:460.811:003.16:496:20First Quarter5Sun
6Mon5:307.07:444.712:590.56:486:21First Quarter6Mon
7Tue6:377.19:074.912:153.52:100.16:466:22First Quarter7Tue
8Wed7:507.210:095.31:413.63:15-0.36:456:23Waxing Gibbous8Wed
9Thu8:597.410:575.72:593.34:11-0.76:436:24Waxing Gibbous9Thu
10Fri10:027.611:386.24:042.85:00-0.96:416:25Waxing Gibbous10Fri
11Sat10:597.75:012.15:45-0.96:406:26Full Moon11Sat
12Sun12:166.511:52 AM7.65:521.56:27-0.76:386:27Full Moon12Sun
13Mon12:526.812:437.46:411.07:06-0.36:366:28Full Moon13Mon
14Tue1:277.01:326.97:290.77:440.36:356:29Waning Gibbous14Tue
15Wed2:027.12:226.48:160.58:211.06:336:31Waning Gibbous15Wed
16Thu2:367.13:145.89:040.58:591.76:326:32Waning Gibbous16Thu
17Fri3:126.94:105.39:540.69:372.56:306:33Waning Gibbous17Fri
18Sat3:506.75:144.910:480.810:213.16:286:34Third Quarter18Sat
19Sun4:336.46:314.611:480.911:163.66:276:35Third Quarter19Sun
20Mon5:256.18:014.612:551.06:256:36Third Quarter20Mon
21Tue6:295.99:174.712:323.82:021.06:236:37Third Quarter21Tue
22Wed7:375.910:065.01:533.83:020.86:226:38Waning Crescent22Wed
23Thu8:406.010:395.23:003.53:510.66:206:39Waning Crescent23Thu
24Fri9:356.111:085.53:523.14:320.46:186:40Waning Crescent24Fri
25Sat10:236.311:365.84:362.65:070.36:176:41Waning Crescent25Sat
26Sun11:086.45:162.15:400.36:156:42New Moon26Sun
27Mon12:036.111:50 AM6.55:541.66:120.46:136:43New Moon27Mon
28Tue12:306.412:326.46:321.16:430.76:116:44New Moon28Tue
29Wed12:586.61:166.27:110.67:151.06:106:45New Moon29Wed
30Thu1:266.82:036.07:520.37:481.56:086:46Waxing Crescent30Thu
31Fri1:567.02:545.78:360.08:232.06:076:47Waxing Crescent31Fri
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 73% 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 Waning Gibbous (73% 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