Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently falling in Eureka, CA.
Next low tide : in 3h 48m at 2:15 pm (2.7 ft)
Next high tide : 9:01 pm (7.2 ft)
Sunset today : 8:52 pm
Sunrise tomorrow : 5:46 am
Moon phase : Waxing Gibbous (77% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Sep 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:267.51:226.76:39-0.16:501.56:447:48New Moon1Thu
2Fri1:087.31:546.87:140.27:301.36:457:46New Moon2Fri
3Sat1:497.02:256.87:480.68:101.26:467:45Waxing Crescent3Sat
4Sun2:306.62:566.88:211.18:511.26:477:43Waxing Crescent4Sun
5Mon3:126.23:286.78:551.69:341.36:487:41Waxing Crescent5Mon
6Tue3:585.84:026.69:292.110:211.46:497:40Waxing Crescent6Tue
7Wed4:505.44:416.510:052.611:141.56:507:38First Quarter7Wed
8Thu5:515.05:286.310:493.06:517:36First Quarter8Thu
9Fri7:024.96:246.312:141.511:48 AM3.46:527:35First Quarter9Fri
10Sat8:174.97:276.31:201.31:013.56:537:33First Quarter10Sat
11Sun9:235.18:306.52:221.12:133.46:547:31Waxing Gibbous11Sun
12Mon10:155.59:286.83:170.73:153.16:557:30Waxing Gibbous12Mon
13Tue10:575.910:227.14:050.44:082.66:567:28Waxing Gibbous13Tue
14Wed11:356.311:137.44:480.14:552.06:577:26Waxing Gibbous14Wed
15Thu12:116.75:29-0.15:411.46:587:25Full Moon15Thu
16Fri12:027.612:477.26:09-0.16:270.86:597:23Full Moon16Fri
17Sat12:517.61:237.56:490.07:140.37:007:21Full Moon17Sat
18Sun1:417.52:027.87:290.48:02-0.17:017:20Waning Gibbous18Sun
19Mon2:337.22:427.98:110.88:53-0.27:017:18Waning Gibbous19Mon
20Tue3:296.73:267.98:561.49:48-0.27:027:16Waning Gibbous20Tue
21Wed4:306.34:167.79:452.010:48-0.17:037:14Third Quarter21Wed
22Thu5:395.95:137.410:422.611:540.17:047:13Third Quarter22Thu
23Fri6:545.76:187.111:523.07:057:11Third Quarter23Fri
24Sat8:115.77:306.91:040.21:103.17:067:09Third Quarter24Sat
25Sun9:205.98:416.82:120.32:272.97:077:08Waning Crescent25Sun
26Mon10:166.29:466.83:140.33:322.57:087:06Waning Crescent26Mon
27Tue11:006.510:426.84:060.34:272.07:097:04Waning Crescent27Tue
28Wed11:376.711:326.84:510.45:131.57:107:03Waning Crescent28Wed
29Thu12:106.95:310.55:551.17:117:01New Moon29Thu
30Fri12:166.812:417.06:070.86:330.87:136:59New Moon30Fri
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 5:38 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 77% 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 Waxing Gibbous (77% 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