40.8500’ N, 124.1170’ W

Arcata Wharf, CA

58°
H -°
L 54°
NW
5mph
High tide
9:22 pm

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 (tomorrow) : 4:32 am (0.7 ft)
Next high tide : in 2h 31m at 9:22 pm (6.0 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 - Feb 1870

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:346.212:357.66:452.97:29-0.57:335:41New Moon1Tue
2Wed2:086.31:157.37:282.88:04-0.27:325:42Waxing Crescent2Wed
3Thu2:406.31:556.98:102.78:370.37:315:43Waxing Crescent3Thu
4Fri3:136.32:366.48:542.69:100.87:305:44Waxing Crescent4Fri
5Sat3:456.33:215.89:412.69:431.37:295:46Waxing Crescent5Sat
6Sun4:206.44:125.310:332.510:161.97:285:47First Quarter6Sun
7Mon4:576.45:144.811:322.410:532.57:275:48First Quarter7Mon
8Tue5:386.46:304.512:372.17:265:49First Quarter8Tue
9Wed6:256.57:574.41:431.87:255:51First Quarter9Wed
10Thu7:176.79:194.612:403.52:441.37:235:52Waxing Gibbous10Thu
11Fri8:116.910:225.01:513.73:370.77:225:53Waxing Gibbous11Fri
12Sat9:047.211:095.32:573.74:240.17:215:54Waxing Gibbous12Sat
13Sun9:557.511:495.73:553.55:07-0.47:205:55Waxing Gibbous13Sun
14Mon10:447.84:463.25:48-0.87:185:57Full Moon14Mon
15Tue12:266.011:32 AM8.05:352.86:28-1.07:175:58Full Moon15Tue
16Wed1:036.312:198.06:232.37:08-1.07:165:59Full Moon16Wed
17Thu1:406.71:087.87:111.97:48-0.77:146:00Waning Gibbous17Thu
18Fri2:176.91:597.48:021.68:28-0.37:136:01Waning Gibbous18Fri
19Sat2:577.22:546.88:561.39:100.47:126:03Waning Gibbous19Sat
20Sun3:387.33:546.29:551.19:541.27:106:04Waning Gibbous20Sun
21Mon4:237.45:045.510:591.010:432.07:096:05Third Quarter21Mon
22Tue5:147.46:255.112:090.87:076:06Third Quarter22Tue
23Wed6:107.37:564.91:220.67:066:07Third Quarter23Wed
24Thu7:137.29:225.112:513.22:320.47:046:08Waning Crescent24Thu
25Fri8:177.210:275.42:073.43:340.17:036:10Waning Crescent25Fri
26Sat9:187.211:155.73:173.34:27-0.17:016:11Waning Crescent26Sat
27Sun10:137.211:545.94:163.15:12-0.27:006:12Waning Crescent27Sun
28Mon11:017.25:062.75:51-0.36:586:13New Moon28Mon
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