Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Arcata Wharf, CA.
Next low tide (tomorrow) : 4:37 am (-0.6 ft)
Next high tide : in 2h 58m at 9:02 pm (7.6 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waning Crescent (21% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - Mar 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:126.910:025.32:033.43:250.46:506:07Waxing Gibbous1Sat
2Sun9:137.110:465.83:103.04:13-0.16:496:08Waxing Gibbous2Sun
3Mon10:107.411:266.34:092.44:58-0.46:476:09Waxing Gibbous3Mon
4Tue11:047.65:021.85:41-0.56:456:10Full Moon4Tue
5Wed12:046.811:56 AM7.75:521.26:22-0.46:446:11Full Moon5Wed
6Thu12:437.212:487.56:420.67:04-0.26:426:12Full Moon6Thu
7Fri1:227.51:407.27:330.27:460.36:416:13Waning Gibbous7Fri
8Sat2:037.72:356.78:240.08:290.96:396:15Waning Gibbous8Sat
9Sun2:467.73:336.29:190.09:151.56:386:16Waning Gibbous9Sun
10Mon3:337.64:375.610:170.110:062.26:366:17Third Quarter10Mon
11Tue4:257.35:495.211:210.311:062.76:346:18Third Quarter11Tue
12Wed5:247.07:095.012:300.56:336:19Third Quarter12Wed
13Thu6:306.78:285.112:183.11:400.66:316:20Third Quarter13Thu
14Fri7:396.59:325.41:363.12:450.66:296:21Waning Crescent14Fri
15Sat8:456.410:205.62:482.93:400.56:286:22Waning Crescent15Sat
16Sun9:426.410:585.83:472.54:250.56:266:23Waning Crescent16Sun
17Mon10:326.411:296.14:362.15:040.56:246:24Waning Crescent17Mon
18Tue11:166.411:586.35:181.75:390.66:236:26New Moon18Tue
19Wed11:566.45:561.46:110.86:216:27New Moon19Wed
20Thu12:256.412:356.36:331.16:411.16:196:28New Moon20Thu
21Fri12:536.51:136.17:080.97:111.46:186:29New Moon21Fri
22Sat1:216.61:525.97:440.87:411.76:166:30Waxing Crescent22Sat
23Sun1:496.62:325.68:210.78:112.16:146:31Waxing Crescent23Sun
24Mon2:196.63:175.39:010.78:432.46:136:32Waxing Crescent24Mon
25Tue2:526.54:085.09:450.79:192.86:116:33Waxing Crescent25Tue
26Wed3:306.45:074.810:350.810:043.16:096:34First Quarter26Wed
27Thu4:186.36:164.711:340.811:083.36:086:35First Quarter27Thu
28Fri5:196.17:264.812:390.76:066:36First Quarter28Fri
29Sat6:326.18:275.112:283.21:430.66:046:37First Quarter29Sat
30Sun7:456.29:195.51:482.92:420.36:036:38Waxing Gibbous30Sun
31Mon8:536.410:036.12:562.33:340.26:016:39Waxing Gibbous31Mon
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 12:49 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 21% 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 Waning Crescent (21% 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