Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Arcata Wharf, CA.
Next low tide (tomorrow) : 2:09 am (1.3 ft)
Next high tide : in 1h 38m at 7:01 pm (6.7 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 - Apr 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:267.13:315.59:100.08:582.36:006:40Waning Gibbous1Fri
2Sat3:026.84:305.19:590.29:402.95:586:41Waning Gibbous2Sat
3Sun3:426.55:364.810:520.410:303.45:566:42Third Quarter3Sun
4Mon4:296.16:544.611:530.711:363.75:556:43Third Quarter4Mon
5Tue5:285.88:144.712:590.85:536:44Third Quarter5Tue
6Wed6:375.69:134.912:583.72:030.85:516:46Third Quarter6Wed
7Thu7:485.59:545.12:153.52:590.75:506:47Waning Crescent7Thu
8Fri8:505.610:265.43:153.13:450.65:486:48Waning Crescent8Fri
9Sat9:445.810:545.74:022.54:250.55:476:49Waning Crescent9Sat
10Sun10:335.911:226.04:442.05:000.65:456:50Waning Crescent10Sun
11Mon11:186.011:496.35:221.45:330.75:436:51New Moon11Mon
12Tue12:026.16:000.96:050.95:426:52New Moon12Tue
13Wed12:176.612:466.06:380.36:371.25:406:53New Moon13Wed
14Thu12:456.91:335.97:17-0.17:101.65:396:54New Moon14Thu
15Fri1:157.02:225.77:59-0.47:462.15:376:55Waxing Crescent15Fri
16Sat1:487.13:165.48:44-0.68:252.55:366:56Waxing Crescent16Sat
17Sun2:257.14:165.19:35-0.69:102.95:346:57Waxing Crescent17Sun
18Mon3:107.05:255.010:32-0.510:083.35:336:58First Quarter18Mon
19Tue4:076.76:395.011:35-0.411:243.45:316:59First Quarter19Tue
20Wed5:186.47:495.112:43-0.35:307:00First Quarter20Wed
21Thu6:386.28:475.512:513.31:50-0.25:287:01First Quarter21Thu
22Fri7:576.19:355.92:122.72:49-0.25:277:02Waxing Gibbous22Fri
23Sat9:096.110:166.43:192.03:42-0.15:257:03Waxing Gibbous23Sat
24Sun11:136.211:536.85:161.25:280.26:248:04Waxing Gibbous24Sun
25Mon12:116.26:070.46:110.56:228:06Full Moon25Mon
26Tue12:287.11:046.16:53-0.26:520.96:218:07Full Moon26Tue
27Wed1:027.31:556.07:37-0.67:311.56:208:08Full Moon27Wed
28Thu1:367.32:445.88:19-0.88:092.06:188:09Full Moon28Thu
29Fri2:087.23:335.59:01-0.88:472.56:178:10Waning Gibbous29Fri
30Sat2:427.04:245.39:43-0.79:272.96:168:11Waning Gibbous30Sat
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 10:35 pm — 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