Tides Today & Tomorrow in Arcata Wharf, CA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Arcata Wharf, CA.
Next low tide (tomorrow) : 2:09 am (1.3 ft)
Next high tide : in 5h 16m at 7:01 pm (6.7 ft)
Sunset today : 8:42 pm
Sunrise tomorrow : 6:03 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #9418851
Common Questions About Tides

Arcata Wharf, CA Tides - Jul 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:295.66:265.611:270.45:488:52Third Quarter1Fri
2Sat5:245.17:055.812:063.112:070.95:488:51Third Quarter2Sat
3Sun6:324.77:456.11:122.812:501.45:498:51Third Quarter3Sun
4Mon7:494.48:256.42:192.21:381.95:498:51Third Quarter4Mon
5Tue9:104.49:076.83:191.52:302.35:508:51Waning Crescent5Tue
6Wed10:264.69:507.24:140.73:262.75:518:51Waning Crescent6Wed
7Thu11:334.910:357.75:04-0.14:222.95:518:50Waning Crescent7Thu
8Fri12:315.25:52-0.85:173.05:528:50Waning Crescent8Fri
9Sat1:235.56:39-1.46:103.05:538:50New Moon9Sat
10Sun12:118.32:125.77:26-1.87:032.95:538:49New Moon10Sun
11Mon1:018.42:595.98:13-2.07:572.75:548:49New Moon11Mon
12Tue1:538.23:456.19:00-1.98:522.65:558:48Waxing Crescent12Tue
13Wed2:467.94:316.39:46-1.69:522.45:558:48Waxing Crescent13Wed
14Thu3:427.35:186.410:33-1.010:562.25:568:47Waxing Crescent14Thu
15Fri4:426.56:066.611:20-0.35:578:47First Quarter15Fri
16Sat5:485.86:546.812:052.012:090.55:588:46First Quarter16Sat
17Sun7:035.17:436.91:171.61:011.35:598:46First Quarter17Sun
18Mon8:264.78:317.12:301.21:562.15:598:45First Quarter18Mon
19Tue9:534.69:207.23:360.72:542.76:008:44Waxing Gibbous19Tue
20Wed11:114.810:067.24:340.33:533.16:018:43Waxing Gibbous20Wed
21Thu12:125.05:24-0.14:483.36:028:43Waxing Gibbous21Thu
22Fri1:005.26:08-0.35:383.46:038:42Waxing Gibbous22Fri
23Sat1:395.46:48-0.56:223.36:048:41Full Moon23Sat
24Sun12:147.22:135.57:25-0.67:043.26:058:40Full Moon24Sun
25Mon12:537.22:455.58:00-0.57:433.16:068:39Full Moon25Mon
26Tue1:307.13:165.68:33-0.48:223.06:068:38Full Moon26Tue
27Wed2:076.93:485.69:06-0.39:022.96:078:38Waning Gibbous27Wed
28Thu2:456.64:205.79:380.09:452.86:088:37Waning Gibbous28Thu
29Fri3:246.24:525.810:100.410:322.76:098:36Waning Gibbous29Fri
30Sat4:085.75:266.010:430.911:252.56:108:35Waning Gibbous30Sat
31Sun5:015.36:026.211:171.46:118:34Third Quarter31Sun
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 10:35 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 neap phase. Tonight's moon is 53% 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 near their weekly minimum.

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 (53% illuminated). This places Arcata Wharf, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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