Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 10:49 pm (2.6 ft)
Next high tide : in 1h 51m at 5:19 pm (6.2 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:51 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Apr 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:266.74:555.110:060.49:412.96:597:41Waning Gibbous1Sat
2Sun4:066.65:554.910:570.510:313.16:577:42Third Quarter2Sun
3Mon4:576.47:024.911:560.611:393.36:567:43Third Quarter3Mon
4Tue6:026.38:075.112:590.56:547:44Third Quarter4Tue
5Wed7:166.29:055.41:013.12:020.46:527:45Third Quarter5Wed
6Thu8:306.39:545.92:172.73:000.36:517:46Waning Crescent6Thu
7Fri9:386.510:386.53:232.03:520.26:497:47Waning Crescent7Fri
8Sat10:416.711:197.14:201.14:400.16:487:48Waning Crescent8Sat
9Sun11:396.911:597.65:130.35:260.36:467:49New Moon9Sun
10Mon12:357.06:03-0.56:110.56:447:50New Moon10Mon
11Tue12:408.01:296.96:52-1.16:550.86:437:51New Moon11Tue
12Wed1:228.22:236.77:41-1.47:401.26:417:53Waxing Crescent12Wed
13Thu2:058.23:186.48:31-1.48:271.76:407:54Waxing Crescent13Thu
14Fri2:508.04:156.19:22-1.29:182.16:387:55Waxing Crescent14Fri
15Sat3:397.65:155.810:16-0.810:152.56:377:56Waxing Crescent15Sat
16Sun4:337.06:205.611:14-0.411:212.86:357:57First Quarter16Sun
17Mon5:346.47:275.512:150.16:347:58First Quarter17Mon
18Tue6:426.08:305.612:362.91:190.46:327:59First Quarter18Tue
19Wed7:555.69:235.81:542.62:190.76:318:00First Quarter19Wed
20Thu9:045.510:066.03:012.23:120.96:298:01Waxing Gibbous20Thu
21Fri10:055.510:426.33:561.73:581.16:288:02Waxing Gibbous21Fri
22Sat10:595.611:146.54:411.24:381.36:268:03Waxing Gibbous22Sat
23Sun11:455.611:446.75:210.75:151.56:258:04Waxing Gibbous23Sun
24Mon12:285.75:580.35:491.76:238:05Full Moon24Mon
25Tue12:136.91:095.76:33-0.16:231.96:228:06Full Moon25Tue
26Wed12:437.01:495.77:08-0.36:562.16:218:07Full Moon26Wed
27Thu1:137.02:295.67:43-0.47:292.46:198:08Full Moon27Thu
28Fri1:447.03:125.58:20-0.58:042.66:188:09Waning Gibbous28Fri
29Sat2:166.93:575.48:59-0.58:422.86:178:10Waning Gibbous29Sat
30Sun2:526.84:465.39:41-0.49:263.06:158:11Waning Gibbous30Sun
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 8:04 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 transitional phase. Tonight's moon is 71% 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 shifting between spring and neap.

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 Waning Gibbous (71% illuminated). This places Eureka, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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