Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Eureka, CA.
Next low tide (tomorrow) : 4:48 am (-0.2 ft)
Next high tide : in 1h 20m at 9:42 pm (7.3 ft)
Sunset today : 8:52 pm
Sunrise tomorrow : 5:46 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Jun 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:306.84:205.69:13-0.69:143.05:478:41Waxing Crescent1Sun
2Mon3:106.45:025.69:52-0.210:043.05:468:42Waxing Crescent2Mon
3Tue3:555.95:455.610:330.211:023.05:468:43Waxing Crescent3Tue
4Wed4:475.46:305.711:160.65:468:44First Quarter4Wed
5Thu5:485.07:145.912:072.812:011.05:458:44First Quarter5Thu
6Fri6:584.77:576.21:142.412:501.45:458:45First Quarter6Fri
7Sat8:124.58:406.52:171.91:411.75:458:45First Quarter7Sat
8Sun9:234.69:216.93:121.22:332.05:458:46Waxing Gibbous8Sun
9Mon10:284.810:037.34:000.53:252.25:448:47Waxing Gibbous9Mon
10Tue11:265.110:447.74:46-0.24:152.45:448:47Waxing Gibbous10Tue
11Wed12:195.55:30-0.95:032.45:448:48Full Moon11Wed
12Thu1:085.76:14-1.45:522.45:448:48Full Moon12Thu
13Fri12:128.21:566.06:58-1.86:412.45:448:49Full Moon13Fri
14Sat12:588.32:436.27:43-2.07:332.45:448:49Waning Gibbous14Sat
15Sun1:478.13:316.38:28-1.98:272.35:448:49Waning Gibbous15Sun
16Mon2:387.84:196.59:15-1.69:262.25:448:50Waning Gibbous16Mon
17Tue3:347.25:096.710:03-1.110:312.15:448:50Waning Gibbous17Tue
18Wed4:356.56:006.810:53-0.511:421.85:448:50Third Quarter18Wed
19Thu5:445.86:517.111:460.25:448:51Third Quarter19Thu
20Fri6:595.37:437.312:551.512:410.95:458:51Third Quarter20Fri
21Sat8:205.08:347.42:071.01:391.55:458:51Waning Crescent21Sat
22Sun9:404.99:237.63:110.42:382.05:458:51Waning Crescent22Sun
23Mon10:515.110:107.74:07-0.13:342.45:458:52Waning Crescent23Mon
24Tue11:505.310:547.74:56-0.54:272.65:468:52Waning Crescent24Tue
25Wed12:405.55:40-0.85:152.75:468:52New Moon25Wed
26Thu1:225.66:20-0.96:002.85:468:52New Moon26Thu
27Fri12:147.62:005.76:58-0.96:432.85:478:52New Moon27Fri
28Sat12:527.42:365.87:34-0.97:242.85:478:52New Moon28Sat
29Sun1:307.23:105.88:09-0.78:052.85:488:52Waxing Crescent29Sun
30Mon2:076.93:455.98:44-0.48:482.85:488:52Waxing Crescent30Mon
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 1:15 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 spring phase. Tonight's moon is 85% 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 Waxing Gibbous (85% 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