Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in Arcata Wharf, CA.
Next low tide : 6:21 am (-1.3 ft)
Next high tide (tomorrow) : in 1h 05m at 11:09 pm (8.0 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:22 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - May 1954

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:275.96:08-0.85:581.56:148:12New Moon1Sat
2Sun12:057.81:245.96:57-1.56:441.86:138:13New Moon2Sun
3Mon12:478.12:205.97:46-1.97:312.16:128:14New Moon3Mon
4Tue1:318.13:155.88:35-2.08:202.46:118:15Waxing Crescent4Tue
5Wed2:187.94:115.79:25-1.89:112.76:098:16Waxing Crescent5Wed
6Thu3:077.55:085.510:17-1.510:082.96:088:17Waxing Crescent6Thu
7Fri4:017.06:075.411:10-0.911:133.06:078:18Waxing Crescent7Fri
8Sat4:596.37:065.412:06-0.46:068:19First Quarter8Sat
9Sun6:055.78:025.512:273.01:030.16:058:20First Quarter9Sun
10Mon7:175.28:515.71:452.71:590.66:048:21First Quarter10Mon
11Tue8:314.89:335.92:592.22:511.16:028:22Waxing Gibbous11Tue
12Wed9:434.710:096.13:591.63:401.56:018:23Waxing Gibbous12Wed
13Thu10:484.710:426.44:491.04:231.96:008:24Waxing Gibbous13Thu
14Fri11:444.811:136.65:310.55:042.25:598:25Waxing Gibbous14Fri
15Sat12:334.96:090.05:422.55:588:26Waxing Gibbous15Sat
16Sun1:175.06:46-0.36:182.75:578:27Full Moon16Sun
17Mon12:156.91:595.17:21-0.66:542.95:578:28Full Moon17Mon
18Tue12:476.92:395.17:57-0.87:293.15:568:29Full Moon18Tue
19Wed1:206.93:215.18:33-0.98:063.25:558:30Full Moon19Wed
20Thu1:546.94:035.19:11-0.98:443.35:548:31Waning Gibbous20Thu
21Fri2:316.74:485.09:51-0.89:293.35:538:32Waning Gibbous21Fri
22Sat3:126.55:345.110:34-0.610:223.35:528:33Waning Gibbous22Sat
23Sun4:006.26:205.211:18-0.411:273.25:528:34Third Quarter23Sun
24Mon5:005.87:065.512:06-0.15:518:34Third Quarter24Mon
25Tue6:115.37:505.912:422.812:570.35:508:35Third Quarter25Tue
26Wed7:325.08:346.41:572.21:500.85:508:36Third Quarter26Wed
27Thu8:544.89:186.93:061.32:451.35:498:37Waning Crescent27Thu
28Fri10:134.910:027.44:070.43:401.75:488:38Waning Crescent28Fri
29Sat11:245.110:487.85:03-0.64:342.15:488:39Waning Crescent29Sat
30Sun12:285.35:55-1.35:272.45:478:39New Moon30Sun
31Mon1:255.56:45-1.96:202.65:478:40New Moon31Mon
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 2:45 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 spring phase. Tonight's moon is 5% 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 near their weekly maximum.

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 Crescent (5% illuminated). This places Arcata Wharf, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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