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 50m 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 - Jun 2087

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:348.22:175.97:38-2.17:242.35:468:42New Moon1Sun
2Mon1:238.13:086.08:26-2.18:162.35:468:42Waxing Crescent2Mon
3Tue2:127.83:586.09:13-1.89:112.45:468:43Waxing Crescent3Tue
4Wed3:037.34:486.010:00-1.410:092.55:458:44Waxing Crescent4Wed
5Thu3:556.75:376.010:48-0.811:112.55:458:44Waxing Crescent5Thu
6Fri4:526.06:266.011:36-0.25:458:45First Quarter6Fri
7Sat5:535.37:156.112:192.412:240.55:448:46First Quarter7Sat
8Sun7:024.88:016.21:302.11:141.25:448:46First Quarter8Sun
9Mon8:164.48:456.32:381.72:061.75:448:47First Quarter9Mon
10Tue9:334.39:276.53:391.32:582.25:448:47Waxing Gibbous10Tue
11Wed10:434.410:066.74:310.83:482.65:448:48Waxing Gibbous11Wed
12Thu11:424.610:456.85:160.34:362.85:448:48Waxing Gibbous12Thu
13Fri12:304.85:56-0.15:212.95:448:49Waxing Gibbous13Fri
14Sat1:125.06:33-0.46:033.05:448:49Full Moon14Sat
15Sun12:007.01:515.27:10-0.66:433.05:448:50Full Moon15Sun
16Mon12:377.12:285.37:45-0.87:233.05:448:50Full Moon16Mon
17Tue1:147.13:055.48:21-0.98:033.05:448:50Full Moon17Tue
18Wed1:517.03:435.58:56-0.98:462.95:448:51Waning Gibbous18Wed
19Thu2:306.84:215.69:33-0.79:332.85:448:51Waning Gibbous19Thu
20Fri3:136.55:005.810:11-0.510:262.75:458:51Waning Gibbous20Fri
21Sat4:026.05:416.010:51-0.111:272.45:458:51Waning Gibbous21Sat
22Sun5:015.66:236.311:340.45:458:52Third Quarter22Sun
23Mon6:115.17:096.612:342.112:210.95:458:52Third Quarter23Mon
24Tue7:304.77:587.01:451.51:151.55:468:52Third Quarter24Tue
25Wed8:544.68:497.42:530.82:152.05:468:52Waning Crescent25Wed
26Thu10:144.79:427.73:560.03:182.45:468:52Waning Crescent26Thu
27Fri11:245.010:358.04:54-0.74:212.55:478:52Waning Crescent27Fri
28Sat12:245.45:47-1.25:202.65:478:52New Moon28Sat
29Sun1:175.76:36-1.66:162.55:488:52New Moon29Sun
30Mon12:198.22:055.97:23-1.87:102.45:488:52New Moon30Mon
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