Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 3:08 pm (3.2 ft)
Next high tide : in 6h 15m at 10:59 am (4.6 ft)
Sunset today : 8:52 pm
Sunrise tomorrow : 5:46 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Jun 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:545.46:07-0.65:442.45:478:41Full Moon1Mon
2Tue12:047.51:385.66:45-1.06:252.55:468:42Full Moon2Tue
3Wed12:417.62:225.77:24-1.37:072.65:468:43Full Moon3Wed
4Thu1:197.63:075.88:05-1.47:512.75:468:43Waning Gibbous4Thu
5Fri2:017.53:525.98:47-1.48:412.75:458:44Waning Gibbous5Fri
6Sat2:477.34:406.09:32-1.29:372.75:458:45Waning Gibbous6Sat
7Sun3:406.85:306.210:19-0.910:412.55:458:45Waning Gibbous7Sun
8Mon4:406.36:206.411:10-0.411:532.35:458:46Third Quarter8Mon
9Tue5:505.87:126.712:030.15:448:46Third Quarter9Tue
10Wed7:085.48:037.11:071.81:000.65:448:47Third Quarter10Wed
11Thu8:285.28:537.42:171.11:591.15:448:48Waning Crescent11Thu
12Fri9:455.29:427.83:210.32:571.65:448:48Waning Crescent12Fri
13Sat10:555.410:298.04:17-0.43:531.95:448:48Waning Crescent13Sat
14Sun11:565.611:158.15:08-1.04:462.15:448:49Waning Crescent14Sun
15Mon12:505.85:56-1.35:372.35:448:49New Moon15Mon
16Tue1:395.96:40-1.56:252.45:448:50New Moon16Tue
17Wed12:428.02:246.07:23-1.57:132.55:448:50New Moon17Wed
18Thu1:247.73:076.08:04-1.37:592.65:448:50Waxing Crescent18Thu
19Fri2:067.33:496.08:44-1.08:472.75:448:51Waxing Crescent19Fri
20Sat2:486.84:306.09:24-0.69:372.85:458:51Waxing Crescent20Sat
21Sun3:336.35:126.010:04-0.110:322.85:458:51Waxing Crescent21Sun
22Mon4:215.75:546.010:450.411:322.75:458:51First Quarter22Mon
23Tue5:165.26:376.111:271.05:458:52First Quarter23Tue
24Wed6:204.87:216.312:372.512:131.55:468:52First Quarter24Wed
25Thu7:324.58:046.51:422.11:021.95:468:52First Quarter25Thu
26Fri8:464.48:476.82:411.61:542.35:468:52Waxing Gibbous26Fri
27Sat9:564.69:307.03:331.02:482.65:478:52Waxing Gibbous27Sat
28Sun10:574.810:127.34:190.43:392.75:478:52Waxing Gibbous28Sun
29Mon11:495.110:547.65:02-0.24:282.85:478:52Waxing Gibbous29Mon
30Tue12:365.55:43-0.75:152.85:488:52Full Moon30Tue
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 1:03 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 85% 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 (85% 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