Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in Arcata Wharf, CA.
Next low tide : 1:20 pm (3.4 ft)
Next high tide : in 1h 07m at 9:04 am (4.4 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 6:19 am
Moon phase : Third Quarter (31% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - Jan 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:465.811:34 AM7.65:413.36:39-0.47:414:59Full Moon1Sun
2Mon1:225.912:097.56:203.47:13-0.37:415:00Full Moon2Mon
3Tue1:565.912:457.36:593.47:47-0.37:415:01Full Moon3Tue
4Wed2:316.01:207.17:383.48:21-0.17:415:02Waning Gibbous4Wed
5Thu3:066.01:576.88:193.48:550.27:415:03Waning Gibbous5Thu
6Fri3:426.12:366.49:043.49:290.57:415:04Waning Gibbous6Fri
7Sat4:206.13:225.99:553.310:060.97:405:04Waning Gibbous7Sat
8Sun5:006.34:175.410:543.110:451.47:405:05Third Quarter8Sun
9Mon5:416.55:285.012:002.87:405:06Third Quarter9Mon
10Tue6:256.76:494.81:092.37:405:08Third Quarter10Tue
11Wed7:127.08:134.812:252.42:131.67:405:09Third Quarter11Wed
12Thu8:027.49:295.01:262.83:110.87:395:10Waning Crescent12Thu
13Fri8:527.810:345.42:303.04:040.07:395:11Waning Crescent13Fri
14Sat9:438.211:295.83:313.14:53-0.77:395:12Waning Crescent14Sat
15Sun10:348.64:293.05:41-1.37:385:13New Moon15Sun
16Mon12:196.211:25 AM8.75:232.86:27-1.67:385:14New Moon16Mon
17Tue1:066.512:158.76:172.67:13-1.67:375:15New Moon17Tue
18Wed1:516.81:068.47:112.47:58-1.47:375:16Waxing Crescent18Wed
19Thu2:367.01:598.08:052.38:43-0.97:365:18Waxing Crescent19Thu
20Fri3:227.12:537.39:032.29:28-0.37:365:19Waxing Crescent20Fri
21Sat4:087.23:516.510:042.110:150.57:355:20Waxing Crescent21Sat
22Sun4:567.24:565.811:102.011:041.37:345:21First Quarter22Sun
23Mon5:467.26:115.212:211.87:345:22First Quarter23Mon
24Tue6:387.27:354.91:331.57:335:24First Quarter24Tue
25Wed7:307.29:014.912:562.72:401.27:325:25Waxing Gibbous25Wed
26Thu8:227.210:145.11:583.13:370.87:315:26Waxing Gibbous26Thu
27Fri9:117.211:095.32:593.44:250.57:315:27Waxing Gibbous27Fri
28Sat9:567.311:505.63:543.45:060.27:305:28Waxing Gibbous28Sat
29Sun10:387.44:423.45:430.07:295:30Full Moon29Sun
30Mon12:245.711:17 AM7.45:243.26:17-0.17:285:31Full Moon30Mon
31Tue12:555.911:55 AM7.46:043.16:50-0.17:275:32Full Moon31Tue
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 11:12 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 31% 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 (31% 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