Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 2:15 pm (2.7 ft)
Next high tide : in 5h 47m at 9:41 am (4.4 ft)
Sunset today : 8:52 pm
Sunrise tomorrow : 5:46 am
Moon phase : Waxing Gibbous (77% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Feb 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:187.12:596.68:542.19:020.77:265:34Waxing Crescent1Wed
2Thu3:597.34:016.09:541.99:471.37:255:35First Quarter2Thu
3Fri4:457.55:155.511:021.610:382.07:245:36First Quarter3Fri
4Sat5:377.66:405.212:141.27:235:38First Quarter4Sat
5Sun6:347.88:085.21:250.67:215:39First Quarter5Sun
6Mon7:358.09:255.512:513.02:300.17:205:40Waxing Gibbous6Mon
7Tue8:358.210:265.92:023.13:27-0.57:195:41Waxing Gibbous7Tue
8Wed9:328.411:176.33:073.04:18-0.87:185:43Waxing Gibbous8Wed
9Thu10:268.54:052.75:04-1.07:175:44Full Moon9Thu
10Fri12:006.611:16 AM8.44:582.45:47-1.07:165:45Full Moon10Fri
11Sat12:406.912:038.25:472.26:27-0.87:145:46Full Moon11Sat
12Sun1:187.012:487.86:342.07:05-0.47:135:48Full Moon12Sun
13Mon1:547.11:327.37:201.97:420.17:125:49Waning Gibbous13Mon
14Tue2:307.12:176.88:071.88:190.77:115:50Waning Gibbous14Tue
15Wed3:067.03:046.18:551.88:551.47:095:51Waning Gibbous15Wed
16Thu3:426.93:575.69:471.99:322.07:085:52Third Quarter16Thu
17Fri4:226.84:585.010:441.910:142.67:075:54Third Quarter17Fri
18Sat5:066.76:124.711:481.811:063.27:055:55Third Quarter18Sat
19Sun5:576.77:364.712:551.67:045:56Third Quarter19Sun
20Mon6:536.78:544.912:113.51:571.37:025:57Third Quarter20Mon
21Tue7:506.89:515.21:223.62:500.97:015:58Waning Crescent21Tue
22Wed8:437.010:345.52:243.53:360.57:006:00Waning Crescent22Wed
23Thu9:337.311:105.93:173.34:160.16:586:01Waning Crescent23Thu
24Fri10:187.511:436.24:042.94:53-0.26:576:02New Moon24Fri
25Sat11:027.74:472.55:29-0.46:556:03New Moon25Sat
26Sun12:166.511:45 AM7.75:292.16:04-0.46:546:04New Moon26Sun
27Mon12:496.812:297.66:121.76:40-0.36:526:05New Moon27Mon
28Tue1:237.11:157.46:571.37:170.16:516:07Waxing Crescent28Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9418801)

Common Questions About Eureka, CA Tides

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

Slack tide in Eureka, CA is approximately 11:58 am — 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 transitional phase. Tonight's moon is 77% 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 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 Waxing Gibbous (77% illuminated). This places Eureka, 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