Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Monday, July 20, 2026
The tide is currently rising in Arcata Wharf, CA.
Next low tide : 11:39 am (1.4 ft)
Next high tide : in 3h 28m at 5:39 am (5.2 ft)
Sunset today : 8:43 pm
Sunrise tomorrow : 6:02 am
Moon phase : First Quarter (43% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - Aug 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:456.43:446.29:160.59:392.16:148:31Waxing Crescent1Wed
2Thu3:265.94:156.39:461.010:242.06:158:30Waxing Crescent2Thu
3Fri4:105.54:486.310:171.511:131.96:168:29Waxing Crescent3Fri
4Sat5:015.05:256.310:492.06:178:28First Quarter4Sat
5Sun6:024.66:076.412:081.911:25 AM2.56:188:26First Quarter5Sun
6Mon7:154.36:566.51:111.712:103.06:198:25First Quarter6Mon
7Tue8:384.37:526.62:171.41:133.36:208:24First Quarter7Tue
8Wed9:554.58:516.83:190.92:293.56:208:23Waxing Gibbous8Wed
9Thu10:564.89:487.14:150.43:393.36:218:21Waxing Gibbous9Thu
10Fri11:435.210:437.55:04-0.14:403.06:228:20Waxing Gibbous10Fri
11Sat12:245.65:49-0.55:352.66:238:19Full Moon11Sat
12Sun1:026.16:32-0.86:272.06:248:17Full Moon12Sun
13Mon12:277.81:406.57:13-0.97:181.56:258:16Full Moon13Mon
14Tue1:187.82:186.97:54-0.78:091.16:268:15Full Moon14Tue
15Wed2:107.52:577.28:34-0.49:010.76:278:13Waning Gibbous15Wed
16Thu3:047.03:387.59:160.29:560.56:288:12Waning Gibbous16Thu
17Fri4:016.44:227.59:590.910:550.46:298:10Waning Gibbous17Fri
18Sat5:035.85:107.510:451.611:580.56:308:09Third Quarter18Sat
19Sun6:145.36:047.311:382.36:318:07Third Quarter19Sun
20Mon7:345.07:057.11:070.512:402.96:328:06Third Quarter20Mon
21Tue9:004.98:107.02:190.51:543.26:338:04Third Quarter21Tue
22Wed10:165.19:156.93:270.43:093.26:348:03Waning Crescent22Wed
23Thu11:145.410:156.94:270.24:153.06:358:01Waning Crescent23Thu
24Fri11:575.611:076.95:160.15:102.76:368:00Waning Crescent24Fri
25Sat12:335.85:580.15:572.46:377:58New Moon25Sat
26Sun1:036.06:350.26:392.16:387:57New Moon26Sun
27Mon12:356.81:316.27:080.37:181.86:397:55New Moon27Mon
28Tue1:146.71:586.37:390.67:551.66:407:54New Moon28Tue
29Wed1:536.52:256.48:090.98:321.46:417:52New Moon29Wed
30Thu2:316.22:536.58:381.39:101.36:427:50Waxing Crescent30Thu
31Fri3:115.93:216.59:071.79:501.36:437:49Waxing Crescent31Fri
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 8:39 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 43% 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 (43% 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