Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Arcata Wharf, CA.
Next low tide : in 1h 06m at 10:44 am (1.6 ft)
Next high tide : 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 - Mar 1965

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:055.611:02 AM7.05:123.05:58-0.16:506:07New Moon1Mon
2Tue12:325.811:42 AM7.05:512.76:29-0.16:486:08New Moon2Tue
3Wed12:596.012:217.06:282.36:590.06:476:09New Moon3Wed
4Thu1:266.21:006.87:072.07:290.36:456:10New Moon4Thu
5Fri1:536.41:426.57:471.67:590.76:436:12Waxing Crescent5Fri
6Sat2:216.62:276.18:291.38:311.26:426:13Waxing Crescent6Sat
7Sun2:516.83:195.79:161.19:041.86:406:14Waxing Crescent7Sun
8Mon3:247.04:205.210:100.99:422.46:396:15Waxing Crescent8Mon
9Tue4:057.05:364.811:120.710:293.06:376:16First Quarter9Tue
10Wed4:557.07:044.612:220.56:356:17First Quarter10Wed
11Thu6:007.08:334.81:350.26:346:18First Quarter11Thu
12Fri7:137.19:435.11:013.72:44-0.16:326:19Waxing Gibbous12Fri
13Sat8:267.210:355.62:253.53:44-0.56:306:20Waxing Gibbous13Sat
14Sun9:337.411:176.03:363.04:36-0.86:296:22Waxing Gibbous14Sun
15Mon10:337.511:556.44:352.45:22-0.86:276:23Full Moon15Mon
16Tue11:277.55:281.76:04-0.76:266:24Full Moon16Tue
17Wed12:316.712:197.36:181.16:43-0.36:246:25Full Moon17Wed
18Thu1:057.01:087.07:050.77:210.26:226:26Full Moon18Thu
19Fri1:397.11:576.57:510.47:580.96:216:27Waning Gibbous19Fri
20Sat2:127.12:466.08:370.48:341.66:196:28Waning Gibbous20Sat
21Sun2:457.03:395.59:240.49:102.36:176:29Waning Gibbous21Sun
22Mon3:206.84:385.010:140.69:502.96:166:30Waning Gibbous22Mon
23Tue3:596.55:474.711:100.810:373.46:146:31Third Quarter23Tue
24Wed4:456.27:114.512:130.96:126:32Third Quarter24Wed
25Thu5:445.98:394.61:211.06:116:33Third Quarter25Thu
26Fri6:535.89:384.81:063.92:250.96:096:34Third Quarter26Fri
27Sat8:025.810:175.12:233.73:200.76:076:35Waning Crescent27Sat
28Sun9:025.910:475.33:233.34:050.56:066:36Waning Crescent28Sun
29Mon9:546.111:155.64:102.84:430.36:046:38Waning Crescent29Mon
30Tue10:416.311:425.94:522.35:170.36:026:39Waning Crescent30Tue
31Wed11:256.45:311.75:500.46:016:40New Moon31Wed
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 2:01 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