Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Eureka, CA.
Next low tide : in 1h 03m at 8:13 pm (3.3 ft)
Next high tide (tomorrow) : 2:12 am (6.9 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Jun 2046

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:354.810:357.24:500.14:082.95:478:42Waning Crescent1Fri
2Sat12:265.05:29-0.54:503.15:468:42New Moon2Sat
3Sun1:125.26:08-0.95:323.25:468:43New Moon3Sun
4Mon1:565.46:47-1.36:143.35:468:44New Moon4Mon
5Tue12:277.82:395.47:27-1.56:573.35:458:44New Moon5Tue
6Wed1:077.83:225.58:09-1.67:433.25:458:45Waxing Crescent6Wed
7Thu1:517.74:065.68:52-1.68:353.15:458:46Waxing Crescent7Thu
8Fri2:407.44:515.89:35-1.49:343.05:458:46Waxing Crescent8Fri
9Sat3:346.95:356.010:21-1.010:412.75:448:47Waxing Crescent9Sat
10Sun4:366.36:206.411:08-0.411:542.35:448:47First Quarter10Sun
11Mon5:485.67:066.811:570.35:448:48First Quarter11Mon
12Tue7:085.17:517.21:091.612:481.05:448:48First Quarter12Tue
13Wed8:344.88:387.62:200.81:431.75:448:49Waxing Gibbous13Wed
14Thu9:574.89:258.03:230.02:412.35:448:49Waxing Gibbous14Thu
15Fri11:125.010:128.24:19-0.83:382.75:448:50Waxing Gibbous15Fri
16Sat12:155.35:11-1.34:343.05:448:50Full Moon16Sat
17Sun1:095.55:58-1.65:283.15:448:50Full Moon17Sun
18Mon1:565.76:43-1.76:183.15:448:51Full Moon18Mon
19Tue12:318.12:395.77:26-1.67:073.15:458:51Full Moon19Tue
20Wed1:167.83:195.88:08-1.47:553.15:458:51Waning Gibbous20Wed
21Thu1:597.43:585.88:48-1.18:433.05:458:51Waning Gibbous21Thu
22Fri2:436.94:365.89:26-0.69:353.05:458:52Waning Gibbous22Fri
23Sat3:286.35:135.910:03-0.110:302.85:468:52Waning Gibbous23Sat
24Sun4:165.75:506.010:400.511:312.65:468:52Third Quarter24Sun
25Mon5:135.16:276.211:171.15:468:52Third Quarter25Mon
26Tue6:194.57:056.412:362.311:56 AM1.85:478:52Third Quarter26Tue
27Wed7:364.27:456.61:411.912:392.45:478:52Third Quarter27Wed
28Thu8:594.28:276.92:411.31:302.95:478:52Waning Crescent28Thu
29Fri10:194.49:107.13:330.72:263.35:488:52Waning Crescent29Fri
30Sat11:234.79:547.44:200.13:233.55:488:52Waning Crescent30Sat
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 11:12 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 93% 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 Waning Gibbous (93% 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