Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Arcata Wharf, CA.
Next low tide (tomorrow) : 12:06 am (1.3 ft)
Next high tide : in 2h 49m at 5:19 pm (6.8 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 6:16 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - Oct 2087

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:175.43:326.59:343.010:340.77:136:58Waxing Crescent1Wed
2Thu5:095.14:116.310:123.311:230.97:146:56Waxing Crescent2Thu
3Fri6:074.94:596.011:003.67:156:54First Quarter3Fri
4Sat7:134.96:005.812:191.112:063.77:166:53First Quarter4Sat
5Sun8:175.07:125.71:201.11:273.77:176:51First Quarter5Sun
6Mon9:125.28:245.72:211.12:423.37:186:50First Quarter6Mon
7Tue9:575.69:305.93:161.03:442.77:196:48Waxing Gibbous7Tue
8Wed10:356.110:306.14:050.94:362.07:206:46Waxing Gibbous8Wed
9Thu11:116.611:256.44:490.95:231.27:216:45Waxing Gibbous9Thu
10Fri11:477.15:320.96:090.47:236:43Full Moon10Fri
11Sat12:186.512:237.66:131.16:55-0.37:246:42Full Moon11Sat
12Sun1:106.61:017.96:541.37:41-0.97:256:40Full Moon12Sun
13Mon2:026.61:418.17:371.78:29-1.17:266:38Waning Gibbous13Mon
14Tue2:566.42:248.18:212.09:19-1.27:276:37Waning Gibbous14Tue
15Wed3:526.23:117.99:092.410:12-1.07:286:35Waning Gibbous15Wed
16Thu4:525.94:047.510:042.811:09-0.67:296:34Waning Gibbous16Thu
17Fri5:575.85:057.011:073.17:306:32Third Quarter17Fri
18Sat7:055.76:156.512:10-0.212:233.27:316:31Third Quarter18Sat
19Sun8:115.97:316.11:150.21:453.07:326:29Third Quarter19Sun
20Mon9:096.18:475.82:190.63:022.57:336:28Waning Crescent20Mon
21Tue9:596.49:575.83:180.94:071.97:356:26Waning Crescent21Tue
22Wed10:406.710:595.84:101.14:591.37:366:25Waning Crescent22Wed
23Thu11:166.911:515.84:551.45:440.87:376:24Waning Crescent23Thu
24Fri11:487.15:351.76:230.47:386:22New Moon24Fri
25Sat12:385.912:187.26:132.07:000.17:396:21New Moon25Sat
26Sun1:215.812:487.26:482.37:36-0.17:406:19New Moon26Sun
27Mon2:015.81:177.27:222.68:11-0.27:416:18New Moon27Mon
28Tue2:415.71:487.17:562.98:47-0.17:426:17Waxing Crescent28Tue
29Wed3:225.62:196.98:303.29:240.07:446:16Waxing Crescent29Wed
30Thu4:065.52:536.79:063.410:040.27:456:14Waxing Crescent30Thu
31Fri4:525.33:306.49:473.610:470.47:466:13Waxing 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 8:42 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 transitional phase. Tonight's moon is 64% 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 Third Quarter (64% 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