Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Eureka, CA.
Next low tide : in 3h 22m at 3:08 pm (3.2 ft)
Next high tide : 9:42 pm (7.3 ft)
Sunset today : 8:52 pm
Sunrise tomorrow : 5:46 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Jan 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:488.210:275.72:072.73:36-0.17:404:59Waxing Gibbous1Thu
2Fri9:358.311:216.03:043.04:22-0.47:405:00Waxing Gibbous2Fri
3Sat10:198.33:563.15:04-0.67:415:01Full Moon3Sat
4Sun12:056.211:01 AM8.24:443.15:43-0.77:415:02Full Moon4Sun
5Mon12:456.311:40 AM8.15:293.16:20-0.67:415:03Full Moon5Mon
6Tue1:216.412:187.86:113.16:56-0.57:405:04Full Moon6Tue
7Wed1:566.412:557.56:533.17:30-0.27:405:05Waning Gibbous7Wed
8Thu2:306.51:337.17:353.18:040.27:405:06Waning Gibbous8Thu
9Fri3:056.52:146.68:203.18:380.67:405:07Waning Gibbous9Fri
10Sat3:416.62:586.19:093.09:121.17:405:08Waning Gibbous10Sat
11Sun4:196.63:505.510:042.99:481.67:405:09Third Quarter11Sun
12Mon4:596.74:535.111:062.710:292.17:395:10Third Quarter12Mon
13Tue5:426.96:104.812:132.47:395:11Third Quarter13Tue
14Wed6:297.17:324.71:171.87:395:12Third Quarter14Wed
15Thu7:187.48:494.912:173.02:141.27:385:13Waning Crescent15Thu
16Fri8:087.79:535.31:223.33:050.57:385:14Waning Crescent16Fri
17Sat8:578.110:455.72:243.33:51-0.27:375:15Waning Crescent17Sat
18Sun9:468.511:316.13:213.24:36-0.87:375:16Waning Crescent18Sun
19Mon10:358.74:143.05:19-1.27:365:18New Moon19Mon
20Tue12:156.511:24 AM8.95:062.76:02-1.47:365:19New Moon20Tue
21Wed12:576.912:138.85:572.46:45-1.47:355:20New Moon21Wed
22Thu1:397.21:038.56:492.17:28-1.17:345:21Waxing Crescent22Thu
23Fri2:217.51:567.97:441.98:11-0.67:345:22Waxing Crescent23Fri
24Sat3:067.72:537.28:421.78:560.17:335:24Waxing Crescent24Sat
25Sun3:527.83:556.49:451.69:440.97:325:25First Quarter25Sun
26Mon4:427.85:065.710:531.510:361.77:315:26First Quarter26Mon
27Tue5:347.86:275.312:051.27:315:27First Quarter27Tue
28Wed6:317.87:555.21:170.97:305:28First Quarter28Wed
29Thu7:287.89:165.312:412.92:230.67:295:30Waxing Gibbous29Thu
30Fri8:257.810:205.61:493.23:180.27:285:31Waxing Gibbous30Fri
31Sat9:177.811:085.92:513.24:050.07:275:32Waxing Gibbous31Sat
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 6:25 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 85% 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 Waxing Gibbous (85% 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