Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Saturday, July 18, 2026
The tide is currently falling in Arcata Wharf, CA.
Next low tide : in 4h 11m at 10:52 pm (1.9 ft)
Next high tide (tomorrow) : 4:37 am (6.0 ft)
Sunset today : 8:44 pm
Sunrise tomorrow : 6:00 am
Moon phase : Waxing Crescent (24% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - May 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:177.71:316.07:04-1.36:551.76:138:13New Moon1Tue
2Wed12:597.82:235.97:51-1.67:412.06:118:14New Moon2Wed
3Thu1:417.83:145.88:37-1.68:272.36:108:15Waxing Crescent3Thu
4Fri2:247.54:055.69:24-1.39:152.66:098:16Waxing Crescent4Fri
5Sat3:087.14:575.510:11-1.010:072.86:088:18Waxing Crescent5Sat
6Sun3:566.55:515.310:59-0.511:053.06:078:19Waxing Crescent6Sun
7Mon4:476.06:455.311:490.06:058:20First Quarter7Mon
8Tue5:455.47:385.312:113.012:420.56:048:21First Quarter8Tue
9Wed6:515.08:275.41:232.91:350.96:038:22First Quarter9Wed
10Thu8:024.79:105.62:342.52:281.36:028:23First Quarter10Thu
11Fri9:124.69:485.93:362.03:171.66:018:24Waxing Gibbous11Fri
12Sat10:174.610:246.24:271.44:031.86:008:25Waxing Gibbous12Sat
13Sun11:144.810:586.55:100.84:452.15:598:26Waxing Gibbous13Sun
14Mon12:054.95:500.35:252.35:588:27Waxing Gibbous14Mon
15Tue12:525.16:28-0.26:042.45:578:28Full Moon15Tue
16Wed12:057.01:365.27:05-0.66:422.65:568:29Full Moon16Wed
17Thu12:407.12:195.37:43-0.97:202.75:568:29Full Moon17Thu
18Fri1:157.23:035.48:22-1.18:012.85:558:30Full Moon18Fri
19Sat1:537.23:485.49:02-1.28:442.95:548:31Waning Gibbous19Sat
20Sun2:357.14:355.49:45-1.29:342.95:538:32Waning Gibbous20Sun
21Mon3:216.85:245.510:31-1.010:322.95:528:33Waning Gibbous21Mon
22Tue4:156.46:145.611:20-0.611:402.75:528:34Third Quarter22Tue
23Wed5:195.97:055.912:11-0.25:518:35Third Quarter23Wed
24Thu6:335.47:556.212:542.31:060.35:508:36Third Quarter24Thu
25Fri7:535.18:446.72:101.72:030.85:508:37Third Quarter25Fri
26Sat9:135.09:327.13:191.03:001.25:498:37Waning Crescent26Sat
27Sun10:295.010:187.44:200.23:561.75:488:38Waning Crescent27Sun
28Mon11:375.211:047.75:15-0.64:502.05:488:39Waning Crescent28Mon
29Tue12:375.46:05-1.15:422.25:478:40New Moon29Tue
30Wed1:305.66:52-1.56:322.45:478:41New Moon30Wed
31Thu12:337.82:195.67:37-1.67:212.55:468:41New Moon31Thu
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 1:44 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 24% 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 Waxing Crescent (24% 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