Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Eureka, CA.
Next low tide : in 5h 04m at 11:24 am (1.4 ft)
Next high tide : 6:32 pm (6.9 ft)
Sunset today : 8:50 pm
Sunrise tomorrow : 5:52 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Jul 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:186.83:586.08:54-0.49:012.85:488:52Waxing Crescent1Sat
2Sun2:596.54:356.19:29-0.19:512.65:498:52Waxing Crescent2Sun
3Mon3:456.05:136.310:060.310:482.45:498:51Waxing Crescent3Mon
4Tue4:405.55:546.610:460.711:522.15:508:51First Quarter4Tue
5Wed5:475.16:386.911:311.35:508:51First Quarter5Wed
6Thu7:064.87:277.21:001.612:241.85:518:51First Quarter6Thu
7Fri8:284.78:197.62:070.91:252.25:528:50Waxing Gibbous7Fri
8Sat9:464.99:138.03:090.12:302.55:528:50Waxing Gibbous8Sat
9Sun10:555.310:078.44:06-0.63:342.65:538:50Waxing Gibbous9Sun
10Mon11:535.711:018.64:59-1.24:352.55:548:49Waxing Gibbous10Mon
11Tue12:456.15:49-1.75:322.35:548:49Full Moon11Tue
12Wed1:336.46:36-1.96:272.15:558:48Full Moon12Wed
13Thu12:468.62:186.77:22-1.97:211.95:568:48Full Moon13Thu
14Fri1:378.33:026.98:07-1.68:161.85:578:47Waning Gibbous14Fri
15Sat2:297.83:467.08:51-1.19:111.75:578:47Waning Gibbous15Sat
16Sun3:227.14:307.09:34-0.410:091.75:588:46Waning Gibbous16Sun
17Mon4:176.35:157.010:180.311:111.65:598:46Third Quarter17Mon
18Tue5:185.66:017.011:031.16:008:45Third Quarter18Tue
19Wed6:265.06:497.012:171.511:52 AM1.96:018:44Third Quarter19Wed
20Thu7:434.77:397.01:251.412:462.56:028:43Third Quarter20Thu
21Fri9:054.68:297.02:301.11:462.96:028:43Waning Crescent21Fri
22Sat10:204.79:187.13:280.72:463.16:038:42Waning Crescent22Sat
23Sun11:175.010:057.24:170.43:423.26:048:41Waning Crescent23Sun
24Mon12:005.25:000.14:313.16:058:40Waning Crescent24Mon
25Tue12:355.55:38-0.15:163.06:068:39New Moon25Tue
26Wed1:085.76:13-0.35:572.86:078:38New Moon26Wed
27Thu12:097.41:405.96:47-0.46:372.66:088:38New Moon27Thu
28Fri12:487.42:126.17:19-0.47:162.56:098:37New Moon28Fri
29Sat1:267.22:446.37:52-0.37:572.36:108:36Waxing Crescent29Sat
30Sun2:057.03:166.58:24-0.18:412.16:118:35Waxing Crescent30Sun
31Mon2:486.63:506.78:570.39:281.96:128:34Waxing Crescent31Mon
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 2:58 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 neap phase. Tonight's moon is 50% 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 minimum.

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 Third Quarter (50% illuminated). This places Eureka, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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