Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Arcata Wharf, CA.
Next low tide (tomorrow) : in 6h 07m at 2:09 am (1.3 ft)
Next high tide (tomorrow) : 8:17 am (4.3 ft)
Sunset today : 8:42 pm
Sunrise tomorrow : 6:03 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - Mar 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:367.08:365.112:163.11:510.56:486:08First Quarter1Fri
2Sat7:456.99:435.41:353.22:560.46:476:09Waxing Gibbous2Sat
3Sun8:516.910:335.72:493.03:520.26:456:10Waxing Gibbous3Sun
4Mon9:496.911:136.03:512.74:380.26:446:11Waxing Gibbous4Mon
5Tue10:406.911:476.24:422.35:180.26:426:12Waxing Gibbous5Tue
6Wed11:256.85:271.95:540.36:406:13Full Moon6Wed
7Thu12:176.412:066.76:071.66:270.66:396:15Full Moon7Thu
8Fri12:456.512:456.56:461.36:580.86:376:16Full Moon8Fri
9Sat1:136.61:246.37:231.17:281.26:366:17Full Moon9Sat
10Sun1:416.73:036.09:001.08:581.67:347:18Waning Gibbous10Sun
11Mon3:106.73:445.69:381.09:282.07:327:19Waning Gibbous11Mon
12Tue3:406.64:295.210:191.09:592.47:317:20Waning Gibbous12Tue
13Wed4:136.55:214.911:051.110:332.87:297:21Waning Gibbous13Wed
14Thu4:526.46:244.611:581.211:173.27:277:22Third Quarter14Thu
15Fri5:416.27:374.51:001.27:267:23Third Quarter15Fri
16Sat6:416.28:504.612:193.42:051.07:247:24Third Quarter16Sat
17Sun7:516.29:524.91:413.43:080.87:227:26Third Quarter17Sun
18Mon9:006.310:405.33:003.24:030.57:217:27Waning Crescent18Mon
19Tue10:046.611:225.84:062.74:520.27:197:28Waning Crescent19Tue
20Wed11:026.85:032.05:370.07:187:29Waning Crescent20Wed
21Thu12:006.411:57 AM7.05:541.26:200.07:167:30New Moon21Thu
22Fri12:386.912:517.16:440.57:020.17:147:31New Moon22Fri
23Sat1:167.41:437.07:32-0.27:430.47:137:32New Moon23Sat
24Sun1:557.72:366.88:21-0.68:260.97:117:33Waxing Crescent24Sun
25Mon2:367.83:316.49:12-0.89:101.47:097:34Waxing Crescent25Mon
26Tue3:207.84:296.010:05-0.79:581.97:087:35Waxing Crescent26Tue
27Wed4:087.65:325.611:01-0.510:522.47:067:36Waxing Crescent27Wed
28Thu5:027.26:425.312:02-0.27:047:37First Quarter28Thu
29Fri6:036.77:565.21:080.27:037:38First Quarter29Fri
30Sat7:126.39:085.31:113.02:170.47:017:39First Quarter30Sat
31Sun8:256.010:075.52:312.93:200.56:597:40Waxing Gibbous31Sun
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 5:13 am — 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 neap phase. Tonight's moon is 53% 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 minimum.

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 First Quarter (53% illuminated). This places Arcata Wharf, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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