Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in Arcata Wharf, CA.
Next low tide : in 2h 54m at 4:00 pm (3.5 ft)
Next high tide : 10:08 pm (7.9 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:21 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - Aug 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:124.48:237.32:450.71:513.16:138:32Waning Crescent1Wed
2Thu10:274.79:257.63:490.13:073.26:138:31Waning Crescent2Thu
3Fri11:265.110:257.94:46-0.54:163.06:148:30Waning Crescent3Fri
4Sat12:155.65:37-0.95:192.66:158:28Waning Crescent4Sat
5Sun12:596.06:25-1.26:162.16:168:27New Moon5Sun
6Mon12:188.21:416.57:10-1.37:101.76:178:26New Moon6Mon
7Tue1:118.02:216.87:53-1.18:031.36:188:25New Moon7Tue
8Wed2:047.73:027.18:35-0.78:571.06:198:24Waxing Crescent8Wed
9Thu2:577.23:437.39:17-0.19:510.96:208:22Waxing Crescent9Thu
10Fri3:526.54:257.39:590.610:480.86:218:21Waxing Crescent10Fri
11Sat4:505.85:097.210:421.411:480.96:228:20First Quarter11Sat
12Sun5:555.25:577.011:292.26:238:18First Quarter12Sun
13Mon7:104.86:506.812:541.012:222.86:248:17First Quarter13Mon
14Tue8:364.67:486.72:031.01:273.36:258:16First Quarter14Tue
15Wed10:004.78:486.63:110.92:383.56:268:14Waxing Gibbous15Wed
16Thu11:034.99:456.64:100.73:453.46:278:13Waxing Gibbous16Thu
17Fri11:475.210:366.75:000.54:413.26:288:12Waxing Gibbous17Fri
18Sat12:215.45:410.35:282.96:298:10Waxing Gibbous18Sat
19Sun12:505.66:170.26:102.66:308:09Full Moon19Sun
20Mon12:036.81:185.86:500.26:492.36:318:07Full Moon20Mon
21Tue12:426.81:456.17:210.27:262.06:328:06Full Moon21Tue
22Wed1:216.72:136.37:510.48:041.86:338:04Full Moon22Wed
23Thu1:596.52:406.48:200.78:421.56:348:03Waning Gibbous23Thu
24Fri2:396.23:096.68:491.19:231.36:358:01Waning Gibbous24Fri
25Sat3:225.93:396.79:201.510:081.26:368:00Waning Gibbous25Sat
26Sun4:115.54:136.89:522.010:581.16:377:58Waning Gibbous26Sun
27Mon5:085.14:546.910:302.511:571.06:387:57Third Quarter27Mon
28Tue6:174.85:456.911:162.96:397:55Third Quarter28Tue
29Wed7:384.66:496.91:040.812:203.36:407:53Third Quarter29Wed
30Thu8:584.88:007.02:150.51:423.46:417:52Third Quarter30Thu
31Fri10:065.19:107.23:210.23:033.26:427:50Waning 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 7:04 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 spring phase. Tonight's moon is 12% 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 Waning Crescent (12% 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