Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently falling in Eureka, CA.
Next low tide : in 2h 39m at 3:10 am (0.7 ft)
Next high tide : 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 - May 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:137.36:085.810:58-1.011:052.86:148:13First Quarter1Mon
2Tue5:166.77:145.811:59-0.66:128:14First Quarter2Tue
3Wed6:276.28:176.012:222.81:03-0.26:118:15First Quarter3Wed
4Thu7:425.89:136.21:422.52:050.26:108:16First Quarter4Thu
5Fri8:565.610:006.52:532.03:010.56:098:17Waxing Gibbous5Fri
6Sat10:035.610:406.73:531.43:510.86:088:18Waxing Gibbous6Sat
7Sun11:025.611:156.94:420.84:351.16:068:19Waxing Gibbous7Sun
8Mon11:535.611:477.05:250.35:161.46:058:20Waxing Gibbous8Mon
9Tue12:395.76:04-0.15:531.76:048:21Full Moon9Tue
10Wed12:177.11:225.76:41-0.46:282.06:038:22Full Moon10Wed
11Thu12:477.12:035.67:17-0.57:032.36:028:23Full Moon11Thu
12Fri1:177.02:435.67:52-0.67:382.66:018:24Full Moon12Fri
13Sat1:486.93:255.58:29-0.68:142.86:008:25Waning Gibbous13Sat
14Sun2:206.74:105.39:07-0.48:523.15:598:26Waning Gibbous14Sun
15Mon2:556.54:575.29:47-0.39:373.25:588:27Waning Gibbous15Mon
16Tue3:356.25:485.210:31-0.110:313.35:578:28Waning Gibbous16Tue
17Wed4:245.96:415.311:190.111:383.35:568:29Third Quarter17Wed
18Thu5:255.57:325.512:120.45:558:30Third Quarter18Thu
19Fri6:385.38:205.812:523.01:070.55:558:31Third Quarter19Fri
20Sat7:545.29:046.32:022.42:020.75:548:32Third Quarter20Sat
21Sun9:065.39:456.83:031.72:550.95:538:33Waning Crescent21Sun
22Mon10:145.510:267.33:570.83:461.15:528:33Waning Crescent22Mon
23Tue11:165.811:087.84:47-0.24:351.35:528:34Waning Crescent23Tue
24Wed12:146.05:35-1.05:231.55:518:35New Moon24Wed
25Thu1:106.26:23-1.76:111.75:508:36New Moon25Thu
26Fri12:348.42:056.37:12-2.17:012.05:508:37New Moon26Fri
27Sat1:208.52:596.38:00-2.27:522.25:498:38Waxing Crescent27Sat
28Sun2:088.23:546.28:50-2.18:472.45:488:39Waxing Crescent28Sun
29Mon2:597.84:506.29:42-1.79:472.65:488:39Waxing Crescent29Mon
30Tue3:557.25:476.210:35-1.210:542.65:478:40First Quarter30Tue
31Wed4:566.56:446.311:30-0.65:478:41First Quarter31Wed
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 6:25 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