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 3h 36m 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 - May 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:015.29:285.62:152.82:251.06:148:13Third Quarter1Fri
2Sat9:075.210:066.03:142.33:141.06:128:14Waning Crescent2Sat
3Sun10:065.310:406.34:021.83:571.16:118:15Waning Crescent3Sun
4Mon10:595.511:136.74:441.14:371.26:108:16Waning Crescent4Mon
5Tue11:485.711:467.05:240.55:151.46:098:17Waning Crescent5Tue
6Wed12:355.86:02-0.15:531.56:088:18New Moon6Wed
7Thu12:187.31:215.96:41-0.66:301.86:068:19New Moon7Thu
8Fri12:527.52:085.97:22-1.07:102.06:058:20New Moon8Fri
9Sat1:287.62:575.98:04-1.37:522.36:048:21Waxing Crescent9Sat
10Sun2:077.63:495.88:49-1.38:382.56:038:22Waxing Crescent10Sun
11Mon2:517.44:445.79:38-1.39:312.76:028:23Waxing Crescent11Mon
12Tue3:427.15:435.710:31-1.010:352.86:018:24Waxing Crescent12Tue
13Wed4:426.76:435.811:28-0.711:492.86:008:25First Quarter13Wed
14Thu5:526.37:436.112:29-0.45:598:26First Quarter14Thu
15Fri7:095.98:376.41:082.41:300.05:588:27First Quarter15Fri
16Sat8:265.79:276.82:221.82:290.35:578:28Waxing Gibbous16Sat
17Sun9:405.610:127.23:271.03:230.65:568:29Waxing Gibbous17Sun
18Mon10:475.710:547.54:230.34:141.05:558:30Waxing Gibbous18Mon
19Tue11:465.811:337.75:13-0.45:011.35:558:31Waxing Gibbous19Tue
20Wed12:415.95:59-0.95:461.75:548:32Full Moon20Wed
21Thu12:117.81:305.96:42-1.16:292.05:538:33Full Moon21Thu
22Fri12:487.72:175.97:23-1.27:112.35:528:34Full Moon22Fri
23Sat1:257.53:035.88:04-1.27:532.65:528:34Waning Gibbous23Sat
24Sun2:027.23:485.78:44-1.08:372.95:518:35Waning Gibbous24Sun
25Mon2:406.84:345.59:25-0.79:233.15:508:36Waning Gibbous25Mon
26Tue3:216.45:215.510:08-0.310:153.25:508:37Waning Gibbous26Tue
27Wed4:065.96:105.410:530.111:163.25:498:38Third Quarter27Wed
28Thu5:005.56:595.511:400.55:498:39Third Quarter28Thu
29Fri6:035.17:465.712:253.112:300.85:488:39Third Quarter29Fri
30Sat7:134.88:296.01:342.71:211.15:488:40Third Quarter30Sat
31Sun8:244.79:106.32:362.22:121.45:478:41Waning Crescent31Sun
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