Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 7:19 pm (2.5 ft)
Next high tide : in 3h 59m at 2:34 pm (6.3 ft)
Sunset today : 8:47 pm
Sunrise tomorrow : 5:58 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Feb 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:168.63:583.55:11-1.37:265:33Full Moon1Fri
2Sat12:136.211:07 AM8.74:513.05:52-1.47:255:35Full Moon2Sat
3Sun12:486.611:58 AM8.65:432.56:31-1.37:245:36Full Moon3Sun
4Mon1:237.012:488.36:342.07:09-0.97:235:37Waning Gibbous4Mon
5Tue1:597.41:417.77:281.57:48-0.27:225:38Waning Gibbous5Tue
6Wed2:367.82:386.98:241.28:270.67:215:40Waning Gibbous6Wed
7Thu3:168.03:416.19:240.99:081.57:205:41Third Quarter7Thu
8Fri3:598.14:545.310:290.89:532.47:185:42Third Quarter8Fri
9Sat4:478.06:224.911:400.710:483.27:175:43Third Quarter9Sat
10Sun5:437.88:054.912:550.57:165:45Third Quarter10Sun
11Mon6:467.79:355.12:060.37:155:46Waning Crescent11Mon
12Tue7:527.610:335.51:214.03:070.07:145:47Waning Crescent12Tue
13Wed8:547.611:145.82:353.83:57-0.27:125:48Waning Crescent13Wed
14Thu9:487.611:476.03:353.54:39-0.37:115:49Waning Crescent14Thu
15Fri10:357.64:243.25:16-0.37:105:51New Moon15Fri
16Sat12:156.211:17 AM7.55:072.85:48-0.27:085:52New Moon16Sat
17Sun12:406.311:56 AM7.35:472.56:170.07:075:53New Moon17Sun
18Mon1:056.512:337.06:252.26:450.47:065:54New Moon18Mon
19Tue1:296.71:116.77:031.97:120.87:045:55Waxing Crescent19Tue
20Wed1:546.81:516.27:411.77:381.47:035:57Waxing Crescent20Wed
21Thu2:196.92:345.88:211.68:031.97:025:58Waxing Crescent21Thu
22Fri2:467.03:225.39:051.58:282.57:005:59Waxing Crescent22Fri
23Sat3:157.04:234.89:561.48:563.06:596:00First Quarter23Sat
24Sun3:517.05:404.510:571.39:293.56:576:01First Quarter24Sun
25Mon4:397.07:164.412:071.16:566:03First Quarter25Mon
26Tue5:427.08:464.61:180.76:546:04First Quarter26Tue
27Wed6:557.29:435.012:074.12:200.26:536:05Waxing Gibbous27Wed
28Thu8:047.510:235.41:393.93:13-0.36:516:06Waxing Gibbous28Thu
29Fri9:077.810:576.02:493.43:59-0.76:506:07Waxing Gibbous29Fri
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 4:56 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 3% 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 New Moon (3% 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