Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Arcata Wharf, CA.
Next low tide : in 2h 23m at 12:23 pm (3.6 ft)
Next high tide : 6:50 pm (6.4 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:31 am
Moon phase : First Quarter (56% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - Oct 1937

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:206.510:196.53:500.54:191.56:125:59Waning Crescent1Fri
2Sat10:556.811:116.44:340.75:060.96:135:57New Moon2Sat
3Sun11:287.011:586.45:131.05:480.56:145:56New Moon3Sun
4Mon11:597.25:501.36:280.26:165:54New Moon4Mon
5Tue12:436.212:297.26:251.87:070.06:175:52New Moon5Tue
6Wed1:266.012:597.16:592.27:450.06:185:51Waxing Crescent6Wed
7Thu2:095.81:297.07:332.68:240.16:195:49Waxing Crescent7Thu
8Fri2:535.52:026.88:073.09:050.36:205:47Waxing Crescent8Fri
9Sat3:425.32:386.58:443.39:500.66:215:46Waxing Crescent9Sat
10Sun4:365.03:206.29:273.610:410.86:225:44First Quarter10Sun
11Mon5:374.94:145.910:243.811:391.06:235:43First Quarter11Mon
12Tue6:414.95:225.611:413.86:245:41First Quarter12Tue
13Wed7:395.16:365.512:391.11:023.66:255:39First Quarter13Wed
14Thu8:265.47:465.61:361.12:103.16:265:38Waxing Gibbous14Thu
15Fri9:055.88:505.72:281.13:052.46:275:36Waxing Gibbous15Fri
16Sat9:406.39:495.93:131.13:531.66:285:35Waxing Gibbous16Sat
17Sun10:146.810:436.13:551.24:380.86:295:33Waxing Gibbous17Sun
18Mon10:487.311:356.34:361.45:220.06:315:32Full Moon18Mon
19Tue11:237.75:161.66:06-0.66:325:30Full Moon19Tue
20Wed12:266.312:018.05:571.96:51-1.16:335:29Full Moon20Wed
21Thu1:196.312:418.26:402.27:39-1.36:345:27Waning Gibbous21Thu
22Fri2:126.21:258.17:252.58:29-1.36:355:26Waning Gibbous22Fri
23Sat3:096.02:137.98:152.89:22-1.06:365:25Waning Gibbous23Sat
24Sun4:095.83:097.49:123.110:19-0.66:375:23Third Quarter24Sun
25Mon5:135.74:136.910:203.311:20-0.26:385:22Third Quarter25Mon
26Tue6:195.85:266.311:403.26:405:20Third Quarter26Tue
27Wed7:206.06:455.912:240.31:032.86:415:19Third Quarter27Wed
28Thu8:146.38:035.71:250.62:182.26:425:18Waning Crescent28Thu
29Fri9:006.79:135.62:221.03:191.66:435:16Waning Crescent29Fri
30Sat9:407.010:155.73:131.44:100.96:445:15Waning Crescent30Sat
31Sun10:157.211:095.73:581.74:540.46:455:14Waning Crescent31Sun
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 3:36 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 56% 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 (56% 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