Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 2:15 pm (2.7 ft)
Next high tide : in 1h 15m at 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 - Aug 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:037.72:246.47:32-0.77:332.26:138:32Full Moon1Tue
2Wed1:467.53:006.68:09-0.68:201.96:148:31Waning Gibbous2Wed
3Thu2:317.23:386.88:46-0.29:101.76:158:30Waning Gibbous3Thu
4Fri3:216.74:187.09:260.210:051.56:168:29Waning Gibbous4Fri
5Sat4:176.25:027.210:080.811:071.36:178:27Third Quarter5Sat
6Sun5:235.75:517.410:561.46:188:26Third Quarter6Sun
7Mon6:395.26:467.512:161.011:53 AM2.06:198:25Third Quarter7Mon
8Tue8:025.17:467.71:270.712:582.56:208:24Third Quarter8Tue
9Wed9:235.28:477.82:350.22:092.76:218:22Waning Crescent9Wed
10Thu10:325.59:478.03:37-0.23:182.76:228:21Waning Crescent10Thu
11Fri11:295.910:438.14:32-0.64:192.56:238:20Waning Crescent11Fri
12Sat12:166.25:22-0.85:152.36:248:18New Moon12Sat
13Sun12:586.56:06-0.96:052.06:258:17New Moon13Sun
14Mon12:248.01:376.76:48-0.86:531.76:268:16New Moon14Mon
15Tue1:107.72:146.87:27-0.57:381.66:278:14New Moon15Tue
16Wed1:547.42:496.98:05-0.18:231.56:288:13Waxing Crescent16Wed
17Thu2:386.93:246.88:410.49:091.56:298:12Waxing Crescent17Thu
18Fri3:236.44:006.89:171.09:561.66:308:10Waxing Crescent18Fri
19Sat4:115.84:376.79:541.610:481.76:318:09Waxing Crescent19Sat
20Sun5:055.35:186.610:332.211:461.76:328:07First Quarter20Sun
21Mon6:084.96:056.511:182.86:338:06First Quarter21Mon
22Tue7:224.76:596.412:491.612:153.26:348:04First Quarter22Tue
23Wed8:404.77:566.51:541.41:223.46:358:03First Quarter23Wed
24Thu9:484.98:536.72:541.12:303.46:368:01Waxing Gibbous24Thu
25Fri10:405.39:466.93:450.73:283.26:378:00Waxing Gibbous25Fri
26Sat11:225.610:357.24:300.44:192.96:387:58Waxing Gibbous26Sat
27Sun11:596.011:217.45:100.05:052.56:397:57Waxing Gibbous27Sun
28Mon12:336.35:48-0.25:482.06:407:55Full Moon28Mon
29Tue12:067.61:086.76:25-0.36:321.66:417:53Full Moon29Tue
30Wed12:517.61:427.07:02-0.27:161.16:427:52Full Moon30Wed
31Thu1:377.52:187.37:390.08:030.86:437:50Waning Gibbous31Thu
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 11:58 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