40.8500’ N, 124.1170’ W

Arcata Wharf, CA

59°
H -°
L 54°
NW
9mph
High tide
9:22 pm

Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Monday, September 21, 2026
The tide is currently rising in Arcata Wharf, CA.
Next low tide (tomorrow) : 4:32 am (0.7 ft)
Next high tide : in 4h 00m at 9:22 pm (6.0 ft)
Sunset today : 7:15 pm
Sunrise tomorrow : 7:03 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - Apr 1870

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:406.412:526.16:500.96:561.16:066:48New Moon1Fri
2Sat1:066.51:325.97:250.77:251.56:046:49New Moon2Sat
3Sun1:326.52:125.68:010.67:541.96:036:50Waxing Crescent3Sun
4Mon1:596.52:565.38:390.58:242.36:016:51Waxing Crescent4Mon
5Tue2:286.43:445.19:190.58:562.85:596:52Waxing Crescent5Tue
6Wed2:596.34:404.810:050.69:333.15:586:53Waxing Crescent6Wed
7Thu3:386.25:474.610:590.610:243.45:566:54First Quarter7Thu
8Fri4:296.07:004.612:000.65:556:55First Quarter8Fri
9Sat5:365.98:074.81:060.55:536:56First Quarter9Sat
10Sun6:525.99:025.11:043.52:090.35:516:57First Quarter10Sun
11Mon8:066.19:465.62:193.03:040.15:506:58Waxing Gibbous11Mon
12Tue9:126.310:256.13:222.33:54-0.15:486:59Waxing Gibbous12Tue
13Wed10:136.611:036.64:161.54:40-0.15:477:00Waxing Gibbous13Wed
14Thu11:106.711:417.15:070.65:240.05:457:01Full Moon14Thu
15Fri12:066.85:56-0.26:070.35:447:02Full Moon15Fri
16Sat12:187.51:006.66:45-0.86:490.85:427:03Full Moon16Sat
17Sun12:587.71:566.47:34-1.27:331.35:407:04Waning Gibbous17Sun
18Mon1:397.82:536.18:25-1.38:191.95:397:06Waning Gibbous18Mon
19Tue2:227.63:545.79:18-1.19:102.45:377:07Waning Gibbous19Tue
20Wed3:107.25:005.410:14-0.810:082.95:367:08Waning Gibbous20Wed
21Thu4:056.76:125.211:15-0.411:173.25:357:09Third Quarter21Thu
22Fri5:086.27:245.312:19-0.15:337:10Third Quarter22Fri
23Sat6:195.88:285.412:383.21:250.25:327:11Third Quarter23Sat
24Sun7:335.59:185.61:572.92:250.45:307:12Waning Crescent24Sun
25Mon8:425.49:575.83:042.43:170.65:297:13Waning Crescent25Mon
26Tue9:425.410:306.03:561.94:010.85:277:14Waning Crescent26Tue
27Wed10:345.510:596.24:401.44:391.05:267:15Waning Crescent27Wed
28Thu11:205.511:266.45:180.95:141.35:257:16New Moon28Thu
29Fri12:025.55:540.45:471.55:237:17New Moon29Fri
30Sat12:445.56:290.16:191.95:227:18New Moon30Sat
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 76% 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 Gibbous (76% 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