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 : in 1h 30m at 12:22 pm (2.2 ft)
Next high tide : 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 - Aug 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:064.86:426.412:262.211:56 AM2.06:128:32Third Quarter1Mon
2Tue7:254.57:276.71:321.812:432.56:138:31Third Quarter2Tue
3Wed8:514.48:187.02:381.21:433.06:148:30Third Quarter3Wed
4Thu10:134.69:137.33:410.52:523.36:158:29Waning Crescent4Thu
5Fri11:215.010:107.74:38-0.24:003.36:168:28Waning Crescent5Fri
6Sat12:155.45:31-0.85:023.16:178:27Waning Crescent6Sat
7Sun1:025.76:20-1.35:592.86:188:26New Moon7Sun
8Mon12:008.31:466.07:07-1.66:542.46:198:24New Moon8Mon
9Tue12:538.42:286.37:52-1.67:472.16:208:23New Moon9Tue
10Wed1:468.23:106.68:36-1.48:421.86:218:22Waxing Crescent10Wed
11Thu2:397.73:526.89:20-0.99:371.56:228:20Waxing Crescent11Thu
12Fri3:347.14:346.910:03-0.210:361.46:238:19Waxing Crescent12Fri
13Sat4:336.45:187.010:470.611:391.26:248:18First Quarter13Sat
14Sun5:375.66:047.011:331.56:258:16First Quarter14Sun
15Mon6:525.06:546.912:461.112:242.36:268:15First Quarter15Mon
16Tue8:174.77:476.81:561.01:233.06:278:14First Quarter16Tue
17Wed9:484.88:446.83:050.82:303.46:288:12Waxing Gibbous17Wed
18Thu11:045.09:396.84:070.53:383.66:298:11Waxing Gibbous18Thu
19Fri11:575.210:316.84:590.34:373.56:308:09Waxing Gibbous19Fri
20Sat12:365.45:440.15:273.36:318:08Waxing Gibbous20Sat
21Sun1:085.56:230.06:103.16:328:07Full Moon21Sun
22Mon12:007.01:365.76:59-0.16:492.86:338:05Full Moon22Mon
23Tue12:397.02:045.87:31-0.17:262.66:348:04Full Moon23Tue
24Wed1:176.92:315.98:020.08:032.36:358:02Full Moon24Wed
25Thu1:546.72:596.08:320.28:412.16:368:00Waning Gibbous25Thu
26Fri2:326.53:276.29:020.69:202.06:377:59Waning Gibbous26Fri
27Sat3:126.13:566.39:311.010:031.86:387:57Waning Gibbous27Sat
28Sun3:575.74:266.410:011.510:511.66:397:56Waning Gibbous28Sun
29Mon4:505.35:006.510:342.111:471.46:407:54Third Quarter29Mon
30Tue5:564.95:426.611:132.76:417:53Third Quarter30Tue
31Wed7:164.66:366.712:521.212:053.26:427:51Third Quarter31Wed
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 3:41 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