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 5h 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 - Jan 1965

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:305.510:54 AM7.65:003.76:12-0.47:414:59New Moon1Fri
2Sat1:065.611:30 AM7.65:423.86:48-0.47:415:00New Moon2Sat
3Sun1:425.712:067.56:183.87:24-0.47:415:01New Moon3Sun
4Mon2:125.712:427.47:003.87:54-0.47:415:02New Moon4Mon
5Tue2:485.81:187.27:363.88:30-0.27:415:03Waxing Crescent5Tue
6Wed3:245.81:546.98:183.79:060.07:415:04Waxing Crescent6Wed
7Thu4:005.92:366.59:063.69:420.47:405:05Waxing Crescent7Thu
8Fri4:366.03:246.010:003.510:180.87:405:06Waxing Crescent8Fri
9Sat5:126.24:245.511:063.210:541.37:405:07First Quarter9Sat
10Sun5:546.55:425.012:182.77:405:08First Quarter10Sun
11Mon6:366.97:124.71:242.07:405:09First Quarter11Mon
12Tue7:187.38:424.812:362.52:301.17:395:10Waxing Gibbous12Tue
13Wed8:067.710:005.11:363.03:300.37:395:11Waxing Gibbous13Wed
14Thu9:008.211:065.52:423.44:24-0.67:395:12Waxing Gibbous14Thu
15Fri9:548.53:423.55:12-1.27:385:13Waxing Gibbous15Fri
16Sat12:005.810:48 AM8.84:423.46:00-1.67:385:14Full Moon16Sat
17Sun12:486.111:36 AM8.95:363.26:48-1.87:375:15Full Moon17Sun
18Mon1:366.412:308.76:363.07:36-1.77:375:16Full Moon18Mon
19Tue2:186.61:248.37:302.88:18-1.47:365:18Waning Gibbous19Tue
20Wed3:006.72:127.78:242.69:06-0.87:365:19Waning Gibbous20Wed
21Thu3:486.83:067.09:242.59:480.07:355:20Waning Gibbous21Thu
22Fri4:306.94:066.110:242.410:300.87:345:21Third Quarter22Fri
23Sat5:127.05:125.411:362.211:181.77:345:22Third Quarter23Sat
24Sun6:007.06:304.812:421.97:335:24Third Quarter24Sun
25Mon6:487.08:064.612:062.51:541.57:325:25Third Quarter25Mon
26Tue7:367.19:364.71:003.23:001.17:315:26Waning Crescent26Tue
27Wed8:247.110:485.02:003.63:480.77:315:27Waning Crescent27Wed
28Thu9:127.211:365.23:063.94:360.47:305:28Waning Crescent28Thu
29Fri9:547.34:003.95:180.17:295:30Waning Crescent29Fri
30Sat12:125.510:36 AM7.44:483.85:54-0.17:285:31New Moon30Sat
31Sun12:425.611:18 AM7.45:303.66:30-0.37:275:32New Moon31Sun
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