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 2h 14m 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 - Jan 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:586.12:427.39:003.59:47-0.48:415:59Waning Gibbous1Mon
2Tue4:396.13:246.89:493.510:260.08:416:00Waning Gibbous2Tue
3Wed5:196.14:106.310:413.511:050.68:416:01Waning Gibbous3Wed
4Thu6:006.15:015.711:403.411:451.18:416:02Third Quarter4Thu
5Fri6:416.26:015.112:463.28:416:02Third Quarter5Fri
6Sat7:226.37:144.712:261.71:552.98:416:03Third Quarter6Sat
7Sun8:036.58:354.51:112.32:592.38:416:04Third Quarter7Sun
8Mon8:456.89:554.62:022.83:551.78:406:05Waning Crescent8Mon
9Tue9:277.111:064.82:563.24:441.18:406:06Waning Crescent9Tue
10Wed10:097.33:503.45:270.48:406:07Waning Crescent10Wed
11Thu12:035.110:50 AM7.64:423.66:08-0.18:406:08Waning Crescent11Thu
12Fri12:505.511:32 AM7.95:313.66:48-0.68:396:10New Moon12Fri
13Sat1:335.712:158.16:183.57:28-1.08:396:11New Moon13Sat
14Sun2:146.012:588.37:043.48:09-1.28:396:12New Moon14Sun
15Mon2:546.21:438.27:513.28:50-1.28:386:13New Moon15Mon
16Tue3:356.32:308.08:413.19:31-1.08:386:14Waxing Crescent16Tue
17Wed4:166.53:217.59:352.910:14-0.68:376:15Waxing Crescent17Wed
18Thu4:596.74:186.910:342.610:580.08:376:16Waxing Crescent18Thu
19Fri5:436.95:226.211:402.411:450.78:366:17First Quarter19Fri
20Sat6:307.26:375.512:522.08:366:19First Quarter20Sat
21Sun7:207.48:025.012:361.52:061.58:356:20First Quarter21Sun
22Mon8:127.69:335.01:332.33:180.98:346:21Waxing Gibbous22Mon
23Tue9:067.810:565.22:362.94:210.38:346:22Waxing Gibbous23Tue
24Wed9:597.93:413.35:16-0.28:336:23Waxing Gibbous24Wed
25Thu12:025.510:51 AM8.04:433.46:05-0.58:326:25Waxing Gibbous25Thu
26Fri12:545.811:39 AM8.05:393.46:49-0.78:326:26Full Moon26Fri
27Sat1:386.012:257.96:303.37:29-0.78:316:27Full Moon27Sat
28Sun2:166.11:077.87:163.28:07-0.68:306:28Full Moon28Sun
29Mon2:506.21:477.57:593.08:43-0.48:296:30Full Moon29Mon
30Tue3:236.22:277.28:412.99:17-0.18:286:31Waning Gibbous30Tue
31Wed3:556.23:066.79:242.99:500.48:276:32Waning Gibbous31Wed
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