Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently falling in Eureka, CA.
Next low tide : in 1h 14m at 5:31 pm (3.6 ft)
Next high tide : 11:41 pm (7.4 ft)
Sunset today : 8:52 pm
Sunrise tomorrow : 5:47 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Jun 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:377.53:535.58:35-1.38:153.45:478:42Waxing Crescent1Sat
2Sun2:177.14:395.49:18-0.99:023.55:468:43Waxing Crescent2Sun
3Mon2:586.75:265.310:01-0.69:553.65:468:43Waxing Crescent3Mon
4Tue3:456.26:135.310:46-0.210:573.55:458:44Waxing Crescent4Tue
5Wed4:375.76:585.411:310.35:458:45First Quarter5Wed
6Thu5:395.27:395.612:083.312:180.75:458:45First Quarter6Thu
7Fri6:504.88:175.91:202.91:041.15:458:46First Quarter7Fri
8Sat8:044.58:526.32:242.31:501.55:458:46First Quarter8Sat
9Sun9:184.59:276.73:181.62:362.05:448:47Waxing Gibbous9Sun
10Mon10:264.710:017.14:050.83:212.35:448:47Waxing Gibbous10Mon
11Tue11:274.910:367.54:470.04:062.75:448:48Waxing Gibbous11Tue
12Wed12:235.25:29-0.74:502.95:448:48Full Moon12Wed
13Thu1:145.46:11-1.35:353.15:448:49Full Moon13Thu
14Fri2:035.66:54-1.76:213.25:448:49Full Moon14Fri
15Sat12:358.22:515.77:38-2.07:093.25:448:50Full Moon15Sat
16Sun1:218.23:395.78:24-2.08:013.25:448:50Waning Gibbous16Sun
17Mon2:118.04:285.89:12-1.98:593.15:448:50Waning Gibbous17Mon
18Tue3:057.65:176.010:00-1.510:043.05:448:51Waning Gibbous18Tue
19Wed4:057.06:056.210:50-1.011:172.75:458:51Third Quarter19Wed
20Thu5:126.36:536.611:40-0.35:458:51Third Quarter20Thu
21Fri6:285.67:407.012:342.212:320.45:458:51Third Quarter21Fri
22Sat7:505.18:257.31:491.51:251.25:458:52Third Quarter22Sat
23Sun9:144.89:107.62:560.72:191.95:468:52Waning Crescent23Sun
24Mon10:344.99:537.93:550.03:132.45:468:52Waning Crescent24Mon
25Tue11:445.110:368.04:47-0.64:062.95:468:52Waning Crescent25Tue
26Wed12:415.35:33-1.04:573.25:478:52New Moon26Wed
27Thu1:305.56:16-1.25:453.35:478:52New Moon27Thu
28Fri2:135.66:57-1.36:303.45:478:52New Moon28Fri
29Sat12:397.72:525.67:36-1.27:143.45:488:52New Moon29Sat
30Sun1:197.53:295.68:15-1.07:573.45:488:52Waxing Crescent30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9418801)

Common Questions About Eureka, CA Tides

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What time does the tide turn (slack tide) in Eureka, CA today?

Slack tide in Eureka, CA is approximately 8:36 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 Eureka, CA?

Eureka, CA is currently in a spring phase. Tonight's moon is 99% 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 maximum.

What datum are Eureka, 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 Eureka, CA?

Tide predictions for Eureka, 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 Eureka, CA?

Tide data for Eureka, CA is sourced from NOAA Station #9418801. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9418801.

What is the moon phase in Eureka, CA tonight?

Tonight the moon over Eureka, CA is Full Moon (99% illuminated). This places Eureka, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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