40.8500’ N, 124.1170’ W

Arcata Wharf, CA

55°
H 61°
L 54°
NE
3mph
High tide
10:49 am

Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Monday, September 21, 2026
The tide is currently rising in Arcata Wharf, CA.
Next low tide : 3:44 pm (3.6 ft)
Next high tide : in 5h 06m at 10:49 am (5.1 ft)
Sunset today : 7:15 pm
Sunrise tomorrow : 7:03 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - Mar 1871

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:306.310:044.81:193.93:041.06:576:14Waxing Gibbous1Wed
2Thu8:306.510:475.12:323.93:540.66:566:15Waxing Gibbous2Thu
3Fri9:256.811:225.43:323.64:380.26:546:16Waxing Gibbous3Fri
4Sat10:147.011:545.74:223.25:16-0.26:526:17Waxing Gibbous4Sat
5Sun11:007.25:072.85:53-0.46:516:18Full Moon5Sun
6Mon12:256.011:45 AM7.45:502.36:28-0.46:496:20Full Moon6Mon
7Tue12:566.312:307.36:331.87:04-0.36:486:21Full Moon7Tue
8Wed1:276.71:177.17:181.37:390.16:466:22Full Moon8Wed
9Thu2:006.92:066.78:050.98:160.66:446:23Waning Gibbous9Thu
10Fri2:357.23:016.28:550.68:551.26:436:24Waning Gibbous10Fri
11Sat3:147.34:025.79:500.49:371.96:416:25Waning Gibbous11Sat
12Sun3:577.35:145.210:520.310:272.66:406:26Third Quarter12Sun
13Mon4:497.26:384.912:010.36:386:27Third Quarter13Mon
14Tue5:517.18:074.91:140.26:366:28Third Quarter14Tue
15Wed7:016.99:245.212:513.52:250.06:356:29Waning Crescent15Wed
16Thu8:136.910:205.52:133.43:27-0.26:336:31Waning Crescent16Thu
17Fri9:207.011:045.93:243.04:20-0.36:316:32Waning Crescent17Fri
18Sat10:187.011:426.24:232.55:06-0.46:306:33Waning Crescent18Sat
19Sun11:107.05:132.05:46-0.36:286:34New Moon19Sun
20Mon12:156.411:57 AM6.95:591.56:230.06:266:35New Moon20Mon
21Tue12:466.512:406.76:411.26:570.46:256:36New Moon21Tue
22Wed1:156.61:236.47:210.97:300.96:236:37New Moon22Wed
23Thu1:436.72:056.08:000.88:011.46:216:38Waxing Crescent23Thu
24Fri2:116.62:495.68:400.78:322.06:206:39Waxing Crescent24Fri
25Sat2:406.53:375.29:220.89:042.56:186:40Waxing Crescent25Sat
26Sun3:126.44:324.810:080.99:383.06:166:41Waxing Crescent26Sun
27Mon3:486.25:374.611:001.010:203.46:156:42First Quarter27Mon
28Tue4:336.06:544.512:011.16:136:43First Quarter28Tue
29Wed5:325.88:144.61:081.06:116:44First Quarter29Wed
30Thu6:425.89:144.812:493.82:120.86:106:45First Quarter30Thu
31Fri7:525.99:575.12:083.63:070.56:086:46Waxing Gibbous31Fri
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 76% 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 (76% 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