Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 7:31 pm (3.4 ft)
Next high tide : in 3h 01m at 3:06 pm (5.5 ft)
Sunset today : 8:52 pm
Sunrise tomorrow : 5:49 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Feb 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:586.51:067.47:022.87:31-0.17:265:33Waxing Crescent1Mon
2Tue2:266.71:496.97:472.48:020.47:255:35Waxing Crescent2Tue
3Wed2:567.02:396.38:372.18:331.17:245:36Waxing Crescent3Wed
4Thu3:277.33:395.69:331.79:071.87:235:37First Quarter4Thu
5Fri4:037.64:535.010:361.49:472.67:225:38First Quarter5Fri
6Sat4:477.76:244.711:471.010:373.37:215:39First Quarter6Sat
7Sun5:427.98:074.71:010.57:205:41First Quarter7Sun
8Mon6:468.09:345.12:11-0.17:195:42Waxing Gibbous8Mon
9Tue7:558.210:335.51:174.03:12-0.67:175:43Waxing Gibbous9Tue
10Wed9:008.411:185.92:363.84:06-1.17:165:44Waxing Gibbous10Wed
11Thu10:018.611:576.33:413.44:53-1.37:155:46Full Moon11Thu
12Fri10:568.64:392.85:36-1.37:145:47Full Moon12Fri
13Sat12:336.711:46 AM8.45:312.36:16-1.17:135:48Full Moon13Sat
14Sun1:087.012:358.06:211.96:53-0.67:115:49Full Moon14Sun
15Mon1:417.21:227.47:101.67:280.07:105:50Waning Gibbous15Mon
16Tue2:147.32:106.77:581.48:020.87:095:52Waning Gibbous16Tue
17Wed2:467.43:016.08:471.38:351.67:075:53Waning Gibbous17Wed
18Thu3:197.33:575.39:401.39:082.47:065:54Third Quarter18Thu
19Fri3:557.25:044.810:371.49:433.27:055:55Third Quarter19Fri
20Sat4:357.06:314.511:421.410:273.77:035:56Third Quarter20Sat
21Sun5:256.88:284.512:521.37:025:58Third Quarter21Sun
22Mon6:266.79:534.82:001.07:005:59Third Quarter22Mon
23Tue7:316.810:325.11:074.22:560.76:596:00Waning Crescent23Tue
24Wed8:316.911:005.32:204.13:420.36:576:01Waning Crescent24Wed
25Thu9:247.111:255.63:153.74:200.06:566:02Waning Crescent25Thu
26Fri10:117.311:505.94:023.34:54-0.26:546:04Waning Crescent26Fri
27Sat10:547.44:432.85:26-0.36:536:05New Moon27Sat
28Sun12:156.311:36 AM7.45:242.35:56-0.26:516:06New Moon28Sun
29Mon12:416.612:187.36:041.86:260.16:506:07New Moon29Mon
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 5:18 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 97% 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 Full Moon (97% 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