Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Saturday, August 22, 2026
The tide is currently rising in Arcata Wharf, CA.
Next low tide (tomorrow) : 4:31 am (0.7 ft)
Next high tide : in 5h 53m at 8:53 pm (6.4 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 6:33 am
Moon phase : Waxing Gibbous (74% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - Mar 1933

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:106.94:005.19:541.29:212.76:506:07Waxing Crescent1Wed
2Thu3:426.75:014.610:461.39:523.26:496:08First Quarter2Thu
3Fri4:206.56:194.311:461.310:293.76:476:09First Quarter3Fri
4Sat5:096.48:014.312:551.36:456:10First Quarter4Sat
5Sun6:126.29:364.52:061.26:446:11First Quarter5Sun
6Mon7:226.210:204.81:144.13:060.86:426:12Waxing Gibbous6Mon
7Tue8:276.410:495.12:343.93:540.56:416:14Waxing Gibbous7Tue
8Wed9:246.611:165.43:353.54:350.26:396:15Waxing Gibbous8Wed
9Thu10:156.811:435.84:243.05:10-0.16:376:16Waxing Gibbous9Thu
10Fri11:027.05:082.45:44-0.16:366:17Full Moon10Fri
11Sat12:106.211:48 AM7.05:511.86:170.06:346:18Full Moon11Sat
12Sun12:376.612:356.96:341.16:490.46:336:19Full Moon12Sun
13Mon1:067.01:236.67:180.67:230.96:316:20Waning Gibbous13Mon
14Tue1:377.32:156.28:050.17:581.56:296:21Waning Gibbous14Tue
15Wed2:107.63:115.78:55-0.18:352.16:286:22Waning Gibbous15Wed
16Thu2:487.64:165.29:49-0.29:172.76:266:23Waning Gibbous16Thu
17Fri3:347.55:314.810:51-0.110:093.36:246:25Third Quarter17Fri
18Sat4:307.37:004.712:010.06:236:26Third Quarter18Sat
19Sun5:397.08:264.91:160.06:216:27Third Quarter19Sun
20Mon6:586.89:315.212:523.72:27-0.16:196:28Waning Crescent20Mon
21Tue8:156.710:175.62:203.43:26-0.26:186:29Waning Crescent21Tue
22Wed9:236.710:555.93:302.84:16-0.26:166:30Waning Crescent22Wed
23Thu10:226.711:286.34:272.14:580.06:146:31Waning Crescent23Thu
24Fri11:146.611:586.65:161.55:350.26:136:32New Moon24Fri
25Sat12:016.46:000.96:100.66:116:33New Moon25Sat
26Sun12:266.812:466.26:400.56:421.16:096:34New Moon26Sun
27Mon12:536.91:295.97:190.37:131.66:086:35New Moon27Mon
28Tue1:196.92:135.67:580.27:442.26:066:36Waxing Crescent28Tue
29Wed1:476.92:585.38:370.28:142.76:046:37Waxing Crescent29Wed
30Thu2:156.73:484.99:180.38:443.16:036:38Waxing Crescent30Thu
31Fri2:476.54:454.610:050.59:183.56:016:39Waxing 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 12:42 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 transitional phase. Tonight's moon is 74% 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 shifting between spring and neap.

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 Gibbous (74% illuminated). This places Arcata Wharf, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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