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 1h 06m 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 - Feb 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:167.212:478.06:321.97:04-0.67:265:33Waxing Crescent1Wed
2Thu1:547.31:337.57:211.87:420.07:255:34Waxing Crescent2Thu
3Fri2:317.42:206.88:101.88:190.67:245:36Waxing Crescent3Fri
4Sat3:097.33:106.29:011.88:571.47:235:37Waxing Crescent4Sat
5Sun3:477.24:045.59:561.89:362.07:225:38First Quarter5Sun
6Mon4:297.15:085.010:561.910:192.77:215:39First Quarter6Mon
7Tue5:157.06:244.712:021.87:205:41First Quarter7Tue
8Wed6:066.97:514.61:091.67:195:42First Quarter8Wed
9Thu7:026.99:084.812:173.52:101.27:185:43Waxing Gibbous9Thu
10Fri7:577.010:035.21:263.73:010.97:165:44Waxing Gibbous10Fri
11Sat8:507.210:425.52:283.63:440.57:155:46Waxing Gibbous11Sat
12Sun9:387.411:165.83:213.34:230.27:145:47Waxing Gibbous12Sun
13Mon10:227.611:486.24:073.04:58-0.17:135:48Full Moon13Mon
14Tue11:047.74:502.65:32-0.27:125:49Full Moon14Tue
15Wed12:206.511:46 AM7.75:312.36:05-0.27:105:50Full Moon15Wed
16Thu12:516.812:287.56:131.96:39-0.17:095:52Full Moon16Thu
17Fri1:237.11:127.36:561.57:140.37:085:53Waning Gibbous17Fri
18Sat1:577.31:596.97:431.37:500.77:065:54Waning Gibbous18Sat
19Sun2:337.52:526.38:331.08:291.37:055:55Waning Gibbous19Sun
20Mon3:137.73:535.89:290.99:131.97:035:56Third Quarter20Mon
21Tue4:007.75:045.310:330.810:052.57:025:58Third Quarter21Tue
22Wed4:557.76:265.111:430.611:112.97:015:59Third Quarter22Wed
23Thu5:587.67:515.212:550.46:596:00Third Quarter23Thu
24Fri7:077.69:045.512:293.12:030.16:586:01Waning Crescent24Fri
25Sat8:157.710:015.91:463.03:01-0.26:566:02Waning Crescent25Sat
26Sun9:177.810:476.42:542.73:53-0.46:556:03Waning Crescent26Sun
27Mon10:137.911:276.73:532.24:38-0.56:536:05New Moon27Mon
28Tue11:057.84:451.75:19-0.46:526:06New Moon28Tue
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