Tides Today & Tomorrow in Eureka, CA

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Eureka, CA.
Next low tide : 10:34 pm (2.5 ft)
Next high tide : in 2h 04m at 5:22 pm (6.3 ft)
Sunset today : 8:51 pm
Sunrise tomorrow : 5:44 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9418801
Common Questions About Tides

Eureka, CA Tides - Jan 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:226.32:186.48:303.38:470.67:404:59Waxing Crescent1Sat
2Sun3:556.43:045.99:223.29:181.27:405:00Waxing Crescent2Sun
3Mon4:306.64:005.310:213.09:511.87:405:01First Quarter3Mon
4Tue5:066.85:114.811:262.610:272.47:415:02First Quarter4Tue
5Wed5:457.06:364.512:322.17:405:03First Quarter5Wed
6Thu6:287.38:074.51:351.47:405:03First Quarter6Thu
7Fri7:167.69:284.812:113.52:310.77:405:04Waxing Gibbous7Fri
8Sat8:068.010:305.21:193.83:21-0.17:405:05Waxing Gibbous8Sat
9Sun8:588.411:195.62:263.94:09-0.77:405:06Waxing Gibbous9Sun
10Mon9:508.73:263.84:54-1.37:405:07Full Moon10Mon
11Tue12:026.010:41 AM9.04:223.55:37-1.77:405:08Full Moon11Tue
12Wed12:426.311:31 AM9.05:153.26:20-1.87:395:10Full Moon12Wed
13Thu1:216.712:228.86:092.87:02-1.67:395:11Waning Gibbous13Thu
14Fri2:017.01:148.47:032.47:44-1.17:395:12Waning Gibbous14Fri
15Sat2:417.32:097.78:012.18:25-0.57:385:13Waning Gibbous15Sat
16Sun3:227.63:086.89:021.89:070.47:385:14Waning Gibbous16Sun
17Mon4:067.84:145.910:071.69:511.37:375:15Third Quarter17Mon
18Tue4:517.95:325.211:181.310:402.37:375:16Third Quarter18Tue
19Wed5:418.07:034.812:321.07:365:17Third Quarter19Wed
20Thu6:347.98:434.91:430.67:365:19Waning Crescent20Thu
21Fri7:317.910:045.212:443.62:450.37:355:20Waning Crescent21Fri
22Sat8:277.911:005.51:553.93:390.07:345:21Waning Crescent22Sat
23Sun9:207.911:415.82:593.94:24-0.37:345:22Waning Crescent23Sun
24Mon10:087.93:543.75:03-0.47:335:23New Moon24Mon
25Tue12:146.010:51 AM7.94:403.55:39-0.47:325:25New Moon25Tue
26Wed12:436.111:30 AM7.85:223.36:11-0.47:325:26New Moon26Wed
27Thu1:106.212:087.66:023.06:42-0.27:315:27New Moon27Thu
28Fri1:376.412:457.36:412.87:100.17:305:28Waxing Crescent28Fri
29Sat2:036.51:226.97:212.67:380.57:295:29Waxing Crescent29Sat
30Sun2:316.72:026.48:022.58:051.07:285:31Waxing Crescent30Sun
31Mon2:596.82:455.88:472.38:321.67:275:32Waxing Crescent31Mon
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 7:58 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 transitional phase. Tonight's moon is 28% 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 Crescent (28% 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