Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Arcata Wharf, CA.
Next low tide : in 5h 25m at 10:23 pm (1.1 ft)
Next high tide (tomorrow) : 4:21 am (5.7 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - May 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:576.64:575.010:10-0.39:433.26:148:12Waning Gibbous1Tue
2Wed3:336.45:544.810:57-0.210:303.46:138:13Waning Gibbous2Wed
3Thu4:186.26:564.811:50-0.111:343.56:128:14Third Quarter3Thu
4Fri5:186.07:575.012:490.06:108:15Third Quarter4Fri
5Sat6:325.78:525.312:563.41:500.06:098:16Third Quarter5Sat
6Sun7:535.69:395.72:173.02:500.16:088:17Third Quarter6Sun
7Mon9:105.710:226.23:282.33:450.26:078:18Waning Crescent7Mon
8Tue10:215.811:026.84:291.34:360.36:068:19Waning Crescent8Tue
9Wed11:265.911:417.35:230.45:240.66:048:20Waning Crescent9Wed
10Thu12:266.16:14-0.56:100.96:038:21New Moon10Thu
11Fri12:217.71:246.17:03-1.26:551.46:028:22New Moon11Fri
12Sat1:017.92:206.07:51-1.77:411.86:018:23New Moon12Sat
13Sun1:438.03:165.98:39-1.88:282.26:008:24Waxing Crescent13Sun
14Mon2:267.84:135.79:28-1.79:182.65:598:25Waxing Crescent14Mon
15Tue3:127.45:115.610:19-1.410:133.05:588:26Waxing Crescent15Tue
16Wed4:016.86:125.411:12-0.911:153.25:578:27Waxing Crescent16Wed
17Thu4:576.27:135.412:07-0.45:568:28First Quarter17Thu
18Fri5:595.78:125.412:283.21:050.15:568:29First Quarter18Fri
19Sat7:095.29:035.61:463.02:020.55:558:30First Quarter19Sat
20Sun8:224.99:455.82:592.62:560.95:548:31First Quarter20Sun
21Mon9:324.810:216.03:592.13:451.25:538:32Waxing Gibbous21Mon
22Tue10:354.810:536.34:481.54:281.55:528:33Waxing Gibbous22Tue
23Wed11:304.911:236.55:300.95:071.85:528:34Waxing Gibbous23Wed
24Thu12:195.06:080.45:442.15:518:35Waxing Gibbous24Thu
25Fri1:055.16:44-0.16:202.35:508:35Full Moon25Fri
26Sat12:226.91:485.27:19-0.46:552.65:508:36Full Moon26Sat
27Sun12:527.02:315.27:55-0.77:302.85:498:37Full Moon27Sun
28Mon1:237.03:155.28:32-0.98:073.15:488:38Full Moon28Mon
29Tue1:566.94:005.29:10-0.98:463.25:488:39Waning Gibbous29Tue
30Wed2:326.84:485.29:52-0.99:303.45:478:40Waning Gibbous30Wed
31Thu3:136.75:385.210:36-0.810:243.45:478:40Waning Gibbous31Thu
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 1:22 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 spring phase. Tonight's moon is 19% 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 maximum.

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 Crescent (19% illuminated). This places Arcata Wharf, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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