Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Eureka, CA.
Next low tide : in 46m at 12:33 pm (1.3 ft)
Next high tide : 7:38 pm (6.9 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Feb 2033

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:177.312:518.36:341.87:09-0.97:255:34Waxing Crescent1Tue
2Wed1:587.61:437.97:271.57:51-0.47:245:35Waxing Crescent2Wed
3Thu2:407.82:387.28:231.38:340.37:235:37Waxing Crescent3Thu
4Fri3:257.93:396.59:231.29:211.07:225:38First Quarter4Fri
5Sat4:137.94:475.810:281.110:121.87:215:39First Quarter5Sat
6Sun5:067.86:075.311:381.011:112.57:205:40First Quarter6Sun
7Mon6:037.77:345.112:510.87:195:42First Quarter7Mon
8Tue7:047.78:575.312:193.02:000.57:185:43Waxing Gibbous8Tue
9Wed8:057.610:025.61:313.22:590.37:175:44Waxing Gibbous9Wed
10Thu9:027.610:515.92:373.23:490.07:155:45Waxing Gibbous10Thu
11Fri9:537.711:306.13:343.04:32-0.17:145:46Waxing Gibbous11Fri
12Sat10:387.64:232.85:09-0.17:135:48Full Moon12Sat
13Sun12:036.311:19 AM7.65:062.55:44-0.17:125:49Full Moon13Sun
14Mon12:336.511:58 AM7.45:462.36:160.17:105:50Full Moon14Mon
15Tue1:016.612:357.26:242.16:470.37:095:51Full Moon15Tue
16Wed1:306.71:126.87:022.07:170.77:085:53Waning Gibbous16Wed
17Thu1:596.81:516.57:411.97:461.17:065:54Waning Gibbous17Thu
18Fri2:296.82:326.08:211.88:161.67:055:55Waning Gibbous18Fri
19Sat3:016.93:195.69:061.88:482.17:045:56Waning Gibbous19Sat
20Sun3:366.84:155.19:571.89:232.57:025:57Third Quarter20Sun
21Mon4:176.85:234.810:571.710:083.07:015:58Third Quarter21Mon
22Tue5:076.86:434.712:031.46:596:00Third Quarter22Tue
23Wed6:066.98:024.81:101.16:586:01Third Quarter23Wed
24Thu7:107.19:075.212:313.42:100.66:566:02Waning Crescent24Thu
25Fri8:137.49:585.71:463.33:040.06:556:03Waning Crescent25Fri
26Sat9:127.710:426.22:502.83:51-0.46:536:04Waning Crescent26Sat
27Sun10:088.011:226.73:472.34:36-0.76:526:05New Moon27Sun
28Mon11:018.24:401.65:19-0.86:506:07New Moon28Mon
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 4:05 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 neap phase. Tonight's moon is 59% 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 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 First Quarter (59% illuminated). This places Eureka, 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