40.8500’ N, 124.1170’ W

Arcata Wharf, CA

49°
H 57°
L 44°
SSE
1mph
High tide
9:05 am

Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Monday, October 19, 2026
The tide is currently rising in Arcata Wharf, CA.
Next low tide : 2:10 pm (3.9 ft)
Next high tide : in 2h 11m at 9:05 am (5.1 ft)
Sunset today : 6:30 pm
Sunrise tomorrow : 7:32 am
Moon phase : First Quarter (61% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - Mar 1816

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:036.31:456.37:542.08:060.96:576:14Waxing Crescent1Fri
2Sat2:296.42:256.08:321.88:331.36:556:16Waxing Crescent2Sat
3Sun2:566.43:105.59:141.69:011.96:546:17Waxing Crescent3Sun
4Mon3:246.54:025.110:001.59:312.46:526:18Waxing Crescent4Mon
5Tue3:566.55:074.710:551.410:053.06:506:19First Quarter5Tue
6Wed4:376.66:294.411:581.210:543.46:496:20First Quarter6Wed
7Thu5:306.68:004.51:090.96:476:21First Quarter7Thu
8Fri6:376.79:184.812:103.82:180.46:466:22First Quarter8Fri
9Sat7:496.910:135.21:413.83:19-0.16:446:23Waxing Gibbous9Sat
10Sun8:577.310:575.62:583.54:12-0.66:426:24Waxing Gibbous10Sun
11Mon9:587.611:366.04:012.94:59-0.96:416:26Waxing Gibbous11Mon
12Tue10:557.84:572.25:44-1.06:396:27Full Moon12Tue
13Wed12:136.511:50 AM7.85:491.56:25-0.96:376:28Full Moon13Wed
14Thu12:496.912:437.66:400.87:06-0.56:366:29Full Moon14Thu
15Fri1:267.31:367.27:310.37:460.16:346:30Waning Gibbous15Fri
16Sat2:047.52:316.68:220.18:270.96:336:31Waning Gibbous16Sat
17Sun2:437.53:306.09:160.09:091.76:316:32Waning Gibbous17Sun
18Mon3:247.44:355.410:120.19:552.56:296:33Waning Gibbous18Mon
19Tue4:107.15:495.011:140.210:503.16:286:34Third Quarter19Tue
20Wed5:036.87:174.812:220.46:266:35Third Quarter20Wed
21Thu6:056.48:464.91:330.56:246:36Third Quarter21Thu
22Fri7:156.29:505.11:223.72:400.56:236:37Waning Crescent22Fri
23Sat8:236.110:345.32:403.53:360.46:216:38Waning Crescent23Sat
24Sun9:246.211:065.53:403.14:220.46:196:39Waning Crescent24Sun
25Mon10:146.211:345.74:282.75:000.36:186:41Waning Crescent25Mon
26Tue10:596.311:595.95:092.25:340.46:166:42Waning Crescent26Tue
27Wed11:406.35:461.86:040.56:146:43New Moon27Wed
28Thu12:236.112:196.26:221.46:330.86:126:44New Moon28Thu
29Fri12:486.312:586.16:571.07:011.16:116:45New Moon29Fri
30Sat1:126.51:385.87:320.87:291.56:096:46New Moon30Sat
31Sun1:376.62:205.68:090.67:572.06:086:47Waxing Crescent31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9418851)

Common Questions About Arcata Wharf, CA Tides

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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 61% 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 First Quarter (61% 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