Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Arcata Wharf, CA.
Next low tide : in 4h 32m at 11:04 pm (1.7 ft)
Next high tide (tomorrow) : 4:52 am (5.3 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 6:15 am
Moon phase : Waning Gibbous (74% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - May 1966

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:265.911:146.74:351.54:460.26:148:12Waxing Gibbous1Sun
2Mon11:316.011:507.15:300.55:310.56:138:13Waxing Gibbous2Mon
3Tue12:306.06:20-0.36:141.06:128:14Full Moon3Tue
4Wed12:267.51:275.97:07-0.96:561.56:108:15Full Moon4Wed
5Thu1:027.72:205.87:52-1.37:382.06:098:16Full Moon5Thu
6Fri1:387.63:135.68:37-1.48:202.56:088:17Waning Gibbous6Fri
7Sat2:157.44:075.49:21-1.39:032.96:078:18Waning Gibbous7Sat
8Sun2:547.15:025.210:08-1.09:503.36:068:19Waning Gibbous8Sun
9Mon3:366.66:005.010:56-0.510:433.66:058:20Waning Gibbous9Mon
10Tue4:236.17:024.911:48-0.111:493.76:038:21Third Quarter10Tue
11Wed5:195.68:014.912:440.36:028:22Third Quarter11Wed
12Thu6:265.28:535.11:073.61:410.66:018:23Third Quarter12Thu
13Fri7:384.99:335.32:253.22:360.86:008:24Third Quarter13Fri
14Sat8:504.810:075.63:302.73:241.05:598:25Waning Crescent14Sat
15Sun9:554.810:375.94:222.14:071.35:588:26Waning Crescent15Sun
16Mon10:544.911:076.35:061.44:461.55:578:27Waning Crescent16Mon
17Tue11:485.011:356.65:450.75:231.85:578:28Waning Crescent17Tue
18Wed12:385.16:230.15:592.15:568:29New Moon18Wed
19Thu12:056.91:265.27:00-0.56:352.55:558:30New Moon19Thu
20Fri12:357.22:145.37:38-0.97:112.75:548:31New Moon20Fri
21Sat1:077.33:025.38:19-1.27:503.05:538:32New Moon21Sat
22Sun1:437.43:535.39:02-1.48:323.25:528:33Waxing Crescent22Sun
23Mon2:237.34:465.29:48-1.49:213.45:528:34Waxing Crescent23Mon
24Tue3:107.15:425.210:38-1.310:193.45:518:35Waxing Crescent24Tue
25Wed4:056.86:395.311:32-1.011:313.45:508:35First Quarter25Wed
26Thu5:106.37:345.512:28-0.75:508:36First Quarter26Thu
27Fri6:255.88:245.912:523.11:25-0.25:498:37First Quarter27Fri
28Sat7:465.49:106.32:132.52:220.25:488:38First Quarter28Sat
29Sun9:075.29:536.83:251.63:150.75:488:39Waxing Gibbous29Sun
30Mon10:235.110:337.24:260.74:071.25:478:40Waxing Gibbous30Mon
31Tue11:325.211:127.55:20-0.14:551.75:478:40Waxing Gibbous31Tue
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 1:58 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 Waning 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