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 46m 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 - Feb 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:266.012:317.26:423.07:22-0.17:265:33Full Moon1Wed
2Thu1:566.11:077.07:202.87:530.17:255:35Full Moon2Thu
3Fri2:276.21:446.87:592.78:240.47:245:36Waning Gibbous3Fri
4Sat2:596.32:246.48:402.68:550.77:235:37Waning Gibbous4Sat
5Sun3:316.43:086.09:262.59:291.27:225:38Waning Gibbous5Sun
6Mon4:066.54:015.510:182.310:051.77:215:40Third Quarter6Mon
7Tue4:466.75:075.011:182.110:482.27:205:41Third Quarter7Tue
8Wed5:316.86:284.812:261.77:195:42Third Quarter8Wed
9Thu6:247.07:544.81:361.27:175:43Third Quarter9Thu
10Fri7:237.39:135.012:523.12:410.67:165:44Waning Crescent10Fri
11Sat8:257.610:175.42:073.23:40-0.17:155:46Waning Crescent11Sat
12Sun9:248.011:105.93:163.14:33-0.77:145:47Waning Crescent12Sun
13Mon10:218.211:566.34:182.75:21-1.17:125:48New Moon13Mon
14Tue11:158.45:142.36:07-1.27:115:49New Moon14Tue
15Wed12:396.712:088.36:071.96:51-1.27:105:51New Moon15Wed
16Thu1:217.012:598.06:591.57:34-0.97:095:52New Moon16Thu
17Fri2:027.21:507.67:511.38:17-0.37:075:53Waxing Crescent17Fri
18Sat2:447.32:437.08:441.28:590.47:065:54Waxing Crescent18Sat
19Sun3:267.33:386.39:391.29:421.17:045:55Waxing Crescent19Sun
20Mon4:107.24:395.610:381.310:281.97:035:57First Quarter20Mon
21Tue4:577.05:495.111:421.311:202.67:025:58First Quarter21Tue
22Wed5:486.87:114.812:501.37:005:59First Quarter22Wed
23Thu6:446.68:384.812:213.11:591.26:596:00First Quarter23Thu
24Fri7:436.59:505.01:313.43:011.06:576:01Waxing Gibbous24Fri
25Sat8:406.610:395.22:393.43:530.76:566:02Waxing Gibbous25Sat
26Sun9:326.711:175.53:373.34:360.56:546:04Waxing Gibbous26Sun
27Mon10:186.811:485.74:263.05:140.36:536:05Waxing Gibbous27Mon
28Tue11:016.95:082.75:480.26:516:06Full Moon28Tue
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