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 48m 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 - Mar 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:037.512:597.86:390.86:58-0.36:506:07Waxing Crescent1Wed
2Thu1:387.81:537.17:310.47:370.56:486:08Waxing Crescent2Thu
3Fri2:158.02:506.48:240.28:161.46:476:10Waxing Crescent3Fri
4Sat2:548.03:545.79:200.28:572.36:456:11Waxing Crescent4Sat
5Sun3:377.85:085.110:220.39:443.16:436:12First Quarter5Sun
6Mon4:267.46:394.811:300.510:453.76:426:13First Quarter6Mon
7Tue5:247.18:224.912:440.66:406:14First Quarter7Tue
8Wed6:336.89:365.112:074.01:550.56:396:15Waxing Gibbous8Wed
9Thu7:446.710:225.41:333.92:550.46:376:16Waxing Gibbous9Thu
10Fri8:476.710:545.62:423.63:420.26:356:17Waxing Gibbous10Fri
11Sat9:406.811:205.83:353.24:210.16:346:18Waxing Gibbous11Sat
12Sun10:256.911:436.04:182.74:540.26:326:20Waxing Gibbous12Sun
13Mon11:066.84:562.25:230.36:316:21Full Moon13Mon
14Tue12:066.311:45 AM6.75:331.85:510.56:296:22Full Moon14Tue
15Wed12:286.512:246.56:081.46:170.86:276:23Full Moon15Wed
16Thu12:516.71:036.36:441.16:431.36:266:24Full Moon16Thu
17Fri1:156.91:446.07:200.87:091.86:246:25Waning Gibbous17Fri
18Sat1:397.02:295.67:590.67:352.36:226:26Waning Gibbous18Sat
19Sun2:047.13:215.28:420.58:032.86:216:27Waning Gibbous19Sun
20Mon2:347.14:244.89:320.58:363.36:196:28Waning Gibbous20Mon
21Tue3:147.15:434.510:330.59:203.66:176:29Third Quarter21Tue
22Wed4:097.07:134.611:430.410:383.96:166:30Third Quarter22Wed
23Thu5:236.98:284.812:550.16:146:31Third Quarter23Thu
24Fri6:456.99:195.312:233.82:00-0.26:126:32Waning Crescent24Fri
25Sat8:027.19:595.81:493.32:55-0.56:116:34Waning Crescent25Sat
26Sun9:107.310:356.42:562.63:43-0.76:096:35Waning Crescent26Sun
27Mon10:117.411:097.03:541.64:26-0.66:076:36Waning Crescent27Mon
28Tue11:087.411:447.54:460.75:07-0.36:066:37New Moon28Tue
29Wed12:037.25:36-0.15:460.26:046:38New Moon29Wed
30Thu12:197.912:576.96:25-0.66:260.96:026:39New Moon30Thu
31Fri12:548.11:526.47:14-0.97:051.66:016:40Waxing Crescent31Fri
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