Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Friday, June 26, 2026
The tide is currently falling in Eureka, CA.
Next low tide : in 2h 22m at 3:59 pm (3.4 ft)
Next high tide : 10:22 pm (7.3 ft)
Sunset today : 8:52 pm
Sunrise tomorrow : 5:46 am
Moon phase : Waxing Gibbous (91% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Mar 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:257.410:325.82:053.43:20-0.16:496:08Waning Crescent1Mon
2Tue9:247.411:136.03:093.24:08-0.26:486:09Waning Crescent2Tue
3Wed10:157.411:476.24:022.94:49-0.36:466:10Waning Crescent3Wed
4Thu11:007.44:472.55:26-0.26:456:11New Moon4Thu
5Fri12:176.411:41 AM7.35:282.25:59-0.16:436:12New Moon5Fri
6Sat12:456.512:197.16:071.96:300.26:416:13New Moon6Sat
7Sun1:126.612:586.86:441.77:000.66:406:14New Moon7Sun
8Mon1:396.71:366.47:221.57:291.16:386:15Waxing Crescent8Mon
9Tue2:066.72:176.08:011.47:581.66:376:16Waxing Crescent9Tue
10Wed2:346.73:035.68:421.48:272.16:356:18Waxing Crescent10Wed
11Thu3:056.73:565.29:281.38:582.66:336:19Waxing Crescent11Thu
12Fri3:396.65:014.810:221.39:363.16:326:20First Quarter12Fri
13Sat4:226.56:204.611:251.210:303.56:306:21First Quarter13Sat
14Sun6:186.58:444.71:331.07:287:22First Quarter14Sun
15Mon7:256.69:535.012:513.72:380.67:277:23First Quarter15Mon
16Tue8:346.810:445.42:153.73:360.17:257:24Waxing Gibbous16Tue
17Wed9:387.111:255.83:243.34:26-0.37:247:25Waxing Gibbous17Wed
18Thu10:367.54:222.75:11-0.77:227:26Waxing Gibbous18Thu
19Fri12:026.311:31 AM7.75:141.95:54-0.87:207:27Full Moon19Fri
20Sat12:396.812:247.86:041.26:35-0.77:197:28Full Moon20Sat
21Sun1:157.21:167.76:530.57:15-0.47:177:30Full Moon21Sun
22Mon1:527.62:107.47:430.07:560.27:157:31Waning Gibbous22Mon
23Tue2:307.93:056.98:34-0.48:380.87:147:32Waning Gibbous23Tue
24Wed3:107.94:046.39:27-0.59:231.67:127:33Waning Gibbous24Wed
25Thu3:547.85:095.810:24-0.410:122.37:107:34Waning Gibbous25Thu
26Fri4:437.56:235.411:26-0.211:112.97:097:35Third Quarter26Fri
27Sat5:407.17:465.212:350.07:077:36Third Quarter27Sat
28Sun6:466.89:085.312:243.31:460.27:057:37Third Quarter28Sun
29Mon7:586.510:125.61:463.42:530.27:047:38Waning Crescent29Mon
30Tue9:086.410:595.83:023.13:500.27:027:39Waning Crescent30Tue
31Wed10:106.411:356.04:032.74:370.27:007:40Waning Crescent31Wed
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 7:10 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 91% 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 (91% 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