Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Eureka, CA.
Next low tide (tomorrow) : 4:02 am (0.2 ft)
Next high tide : in 5h 57m at 9:01 pm (7.2 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 - May 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:415.79:086.01:412.62:060.36:138:13Third Quarter1Sun
2Mon8:565.89:536.62:491.93:020.46:128:14Waning Crescent2Mon
3Tue10:046.010:367.13:481.13:540.56:118:15Waning Crescent3Tue
4Wed11:076.211:187.64:420.14:430.66:108:16Waning Crescent4Wed
5Thu12:056.45:32-0.75:310.86:088:17New Moon5Thu
6Fri12:008.11:016.56:21-1.46:181.16:078:18New Moon6Fri
7Sat12:438.31:566.57:10-1.87:051.56:068:19New Moon7Sat
8Sun1:278.32:516.47:59-1.97:541.86:058:20Waxing Crescent8Sun
9Mon2:128.13:466.28:48-1.88:452.26:048:21Waxing Crescent9Mon
10Tue3:017.74:436.09:39-1.49:412.56:038:22Waxing Crescent10Tue
11Wed3:527.15:425.910:32-1.010:452.76:028:23Waxing Crescent11Wed
12Thu4:506.56:425.811:28-0.411:562.86:018:24First Quarter12Thu
13Fri5:545.97:415.912:260.16:008:25First Quarter13Fri
14Sat7:045.48:346.01:122.61:230.65:598:26First Quarter14Sat
15Sun8:165.19:206.22:232.22:190.95:588:27Waxing Gibbous15Sun
16Mon9:255.09:596.43:231.73:091.25:578:28Waxing Gibbous16Mon
17Tue10:265.110:346.64:121.13:541.55:568:29Waxing Gibbous17Tue
18Wed11:195.211:066.84:540.64:351.85:558:30Waxing Gibbous18Wed
19Thu12:065.35:320.25:132.05:548:31Waxing Gibbous19Thu
20Fri12:495.46:08-0.25:502.25:548:32Full Moon20Fri
21Sat12:107.11:305.56:44-0.56:252.45:538:33Full Moon21Sat
22Sun12:417.22:115.57:19-0.77:012.65:528:34Full Moon22Sun
23Mon1:137.12:525.57:55-0.87:382.85:518:35Full Moon23Mon
24Tue1:477.13:355.58:32-0.88:172.95:518:35Waning Gibbous24Tue
25Wed2:226.94:205.59:12-0.89:013.05:508:36Waning Gibbous25Wed
26Thu3:036.75:085.59:54-0.69:543.15:498:37Waning Gibbous26Thu
27Fri3:506.35:575.610:40-0.410:573.05:498:38Third Quarter27Fri
28Sat4:496.06:485.911:31-0.15:488:39Third Quarter28Sat
29Sun6:005.67:376.212:092.712:260.25:488:40Third Quarter29Sun
30Mon7:195.38:266.71:232.21:230.65:478:40Third Quarter30Mon
31Tue8:385.39:137.22:311.42:200.95:478:41Waning Crescent31Tue
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 12:31 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