Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Arcata Wharf, CA.
Next low tide : 4:00 pm (3.5 ft)
Next high tide : in 6h 45m at 11:35 am (5.0 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 - May 1957

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:337.13:025.58:29-0.98:122.46:148:12New Moon1Wed
2Thu2:097.13:495.49:11-1.08:542.66:138:13Waxing Crescent2Thu
3Fri2:487.14:405.39:56-0.99:412.86:118:14Waxing Crescent3Fri
4Sat3:346.85:345.310:45-0.810:382.96:108:15Waxing Crescent4Sat
5Sun4:286.56:315.411:38-0.511:472.86:098:16First Quarter5Sun
6Mon5:336.17:285.612:35-0.26:088:17First Quarter6Mon
7Tue6:485.78:235.91:052.61:340.16:078:18First Quarter7Tue
8Wed8:075.59:146.32:222.02:330.46:058:19First Quarter8Wed
9Thu9:255.410:016.83:321.33:300.86:048:20Waxing Gibbous9Thu
10Fri10:365.410:457.24:320.54:241.16:038:21Waxing Gibbous10Fri
11Sat11:415.511:287.55:26-0.35:141.46:028:22Waxing Gibbous11Sat
12Sun12:395.76:15-0.96:021.76:018:23Full Moon12Sun
13Mon12:107.61:325.77:02-1.36:482.06:008:24Full Moon13Mon
14Tue12:517.62:215.77:46-1.47:342.25:598:25Full Moon14Tue
15Wed1:317.53:095.78:29-1.48:192.55:588:26Waning Gibbous15Wed
16Thu2:127.23:565.69:12-1.29:042.75:578:27Waning Gibbous16Thu
17Fri2:536.84:435.49:55-0.89:532.95:568:28Waning Gibbous17Fri
18Sat3:376.45:305.310:39-0.410:463.05:558:29Waning Gibbous18Sat
19Sun4:245.96:185.311:240.111:463.05:558:30Third Quarter19Sun
20Mon5:175.47:065.312:110.55:548:31Third Quarter20Mon
21Tue6:184.97:535.512:542.91:000.95:538:32Third Quarter21Tue
22Wed7:274.68:375.72:042.61:511.35:528:33Third Quarter22Wed
23Thu8:394.49:176.03:072.12:411.75:518:34Waning Crescent23Thu
24Fri9:484.59:566.34:011.53:291.95:518:35Waning Crescent24Fri
25Sat10:504.610:336.64:480.94:162.25:508:36Waning Crescent25Sat
26Sun11:464.811:106.95:300.35:002.35:498:36Waning Crescent26Sun
27Mon12:365.16:10-0.35:432.55:498:37New Moon27Mon
28Tue1:225.36:50-0.86:252.65:488:38New Moon28Tue
29Wed12:257.42:085.47:30-1.27:082.65:488:39New Moon29Wed
30Thu1:057.52:535.58:11-1.47:532.75:478:40New Moon30Thu
31Fri1:477.53:395.68:54-1.58:412.75:478:40Waxing 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 1:47 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